Commit d45e5ac5eb
Changed files (1)
src
arch
wasm
src/arch/wasm/CodeGen.zig
@@ -700,22 +700,20 @@ const InnerError = error{
Overflow,
} || link.File.UpdateDebugInfoError;
-pub fn deinit(func: *CodeGen) void {
- // in case of an error and we still have branches
- for (func.branches.items) |*branch| {
- branch.deinit(func.gpa);
- }
- func.branches.deinit(func.gpa);
- func.blocks.deinit(func.gpa);
- func.loops.deinit(func.gpa);
- func.locals.deinit(func.gpa);
- func.simd_immediates.deinit(func.gpa);
- func.free_locals_i32.deinit(func.gpa);
- func.free_locals_i64.deinit(func.gpa);
- func.free_locals_f32.deinit(func.gpa);
- func.free_locals_f64.deinit(func.gpa);
- func.free_locals_v128.deinit(func.gpa);
- func.* = undefined;
+pub fn deinit(cg: *CodeGen) void {
+ const gpa = cg.gpa;
+ for (cg.branches.items) |*branch| branch.deinit(gpa);
+ cg.branches.deinit(gpa);
+ cg.blocks.deinit(gpa);
+ cg.loops.deinit(gpa);
+ cg.locals.deinit(gpa);
+ cg.simd_immediates.deinit(gpa);
+ cg.free_locals_i32.deinit(gpa);
+ cg.free_locals_i64.deinit(gpa);
+ cg.free_locals_f32.deinit(gpa);
+ cg.free_locals_f64.deinit(gpa);
+ cg.free_locals_v128.deinit(gpa);
+ cg.* = undefined;
}
fn fail(cg: *CodeGen, comptime fmt: []const u8, args: anytype) error{ OutOfMemory, CodegenFail } {
@@ -726,10 +724,10 @@ fn fail(cg: *CodeGen, comptime fmt: []const u8, args: anytype) error{ OutOfMemor
/// Resolves the `WValue` for the given instruction `inst`
/// When the given instruction has a `Value`, it returns a constant instead
-fn resolveInst(func: *CodeGen, ref: Air.Inst.Ref) InnerError!WValue {
- var branch_index = func.branches.items.len;
+fn resolveInst(cg: *CodeGen, ref: Air.Inst.Ref) InnerError!WValue {
+ var branch_index = cg.branches.items.len;
while (branch_index > 0) : (branch_index -= 1) {
- const branch = func.branches.items[branch_index - 1];
+ const branch = cg.branches.items[branch_index - 1];
if (branch.values.get(ref)) |value| {
return value;
}
@@ -739,13 +737,13 @@ fn resolveInst(func: *CodeGen, ref: Air.Inst.Ref) InnerError!WValue {
// means we must generate it from a constant.
// We always store constants in the most outer branch as they must never
// be removed. The most outer branch is always at index 0.
- const gop = try func.branches.items[0].values.getOrPut(func.gpa, ref);
+ const gop = try cg.branches.items[0].values.getOrPut(cg.gpa, ref);
assert(!gop.found_existing);
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const val = (try func.air.value(ref, pt)).?;
- const ty = func.typeOf(ref);
+ const val = (try cg.air.value(ref, pt)).?;
+ const ty = cg.typeOf(ref);
if (!ty.hasRuntimeBitsIgnoreComptime(zcu) and !ty.isInt(zcu) and !ty.isError(zcu)) {
gop.value_ptr.* = .none;
return .none;
@@ -757,24 +755,24 @@ fn resolveInst(func: *CodeGen, ref: Air.Inst.Ref) InnerError!WValue {
//
// In the other cases, we will simply lower the constant to a value that fits
// into a single local (such as a pointer, integer, bool, etc).
- const result: WValue = if (isByRef(ty, pt, func.target))
+ const result: WValue = if (isByRef(ty, pt, cg.target))
.{ .uav_ref = .{ .ip_index = val.toIntern() } }
else
- try func.lowerConstant(val, ty);
+ try cg.lowerConstant(val, ty);
gop.value_ptr.* = result;
return result;
}
/// NOTE: if result == .stack, it will be stored in .local
-fn finishAir(func: *CodeGen, inst: Air.Inst.Index, result: WValue, operands: []const Air.Inst.Ref) InnerError!void {
+fn finishAir(cg: *CodeGen, inst: Air.Inst.Index, result: WValue, operands: []const Air.Inst.Ref) InnerError!void {
assert(operands.len <= Liveness.bpi - 1);
- var tomb_bits = func.liveness.getTombBits(inst);
+ var tomb_bits = cg.liveness.getTombBits(inst);
for (operands) |operand| {
const dies = @as(u1, @truncate(tomb_bits)) != 0;
tomb_bits >>= 1;
if (!dies) continue;
- processDeath(func, operand);
+ processDeath(cg, operand);
}
// results of `none` can never be referenced.
@@ -782,13 +780,13 @@ fn finishAir(func: *CodeGen, inst: Air.Inst.Index, result: WValue, operands: []c
const trackable_result = if (result != .stack)
result
else
- try result.toLocal(func, func.typeOfIndex(inst));
- const branch = func.currentBranch();
+ try result.toLocal(cg, cg.typeOfIndex(inst));
+ const branch = cg.currentBranch();
branch.values.putAssumeCapacityNoClobber(inst.toRef(), trackable_result);
}
if (std.debug.runtime_safety) {
- func.air_bookkeeping += 1;
+ cg.air_bookkeeping += 1;
}
}
@@ -801,8 +799,8 @@ const Branch = struct {
}
};
-inline fn currentBranch(func: *CodeGen) *Branch {
- return &func.branches.items[func.branches.items.len - 1];
+inline fn currentBranch(cg: *CodeGen) *Branch {
+ return &cg.branches.items[cg.branches.items.len - 1];
}
const BigTomb = struct {
@@ -829,126 +827,126 @@ const BigTomb = struct {
}
};
-fn iterateBigTomb(func: *CodeGen, inst: Air.Inst.Index, operand_count: usize) !BigTomb {
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, operand_count + 1);
+fn iterateBigTomb(cg: *CodeGen, inst: Air.Inst.Index, operand_count: usize) !BigTomb {
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, operand_count + 1);
return BigTomb{
- .gen = func,
+ .gen = cg,
.inst = inst,
- .lbt = func.liveness.iterateBigTomb(inst),
+ .lbt = cg.liveness.iterateBigTomb(inst),
};
}
-fn processDeath(func: *CodeGen, ref: Air.Inst.Ref) void {
+fn processDeath(cg: *CodeGen, ref: Air.Inst.Ref) void {
if (ref.toIndex() == null) return;
// Branches are currently only allowed to free locals allocated
// within their own branch.
// TODO: Upon branch consolidation free any locals if needed.
- const value = func.currentBranch().values.getPtr(ref) orelse return;
+ const value = cg.currentBranch().values.getPtr(ref) orelse return;
if (value.* != .local) return;
- const reserved_indexes = func.args.len + @intFromBool(func.return_value != .none);
+ const reserved_indexes = cg.args.len + @intFromBool(cg.return_value != .none);
if (value.local.value < reserved_indexes) {
return; // function arguments can never be re-used
}
log.debug("Decreasing reference for ref: %{d}, using local '{d}'", .{ @intFromEnum(ref.toIndex().?), value.local.value });
value.local.references -= 1; // if this panics, a call to `reuseOperand` was forgotten by the developer
if (value.local.references == 0) {
- value.free(func);
+ value.free(cg);
}
}
/// Appends a MIR instruction and returns its index within the list of instructions
-fn addInst(func: *CodeGen, inst: Mir.Inst) error{OutOfMemory}!void {
- try func.mir_instructions.append(func.gpa, inst);
+fn addInst(cg: *CodeGen, inst: Mir.Inst) error{OutOfMemory}!void {
+ try cg.mir_instructions.append(cg.gpa, inst);
}
-fn addTag(func: *CodeGen, tag: Mir.Inst.Tag) error{OutOfMemory}!void {
- try func.addInst(.{ .tag = tag, .data = .{ .tag = {} } });
+fn addTag(cg: *CodeGen, tag: Mir.Inst.Tag) error{OutOfMemory}!void {
+ try cg.addInst(.{ .tag = tag, .data = .{ .tag = {} } });
}
-fn addExtended(func: *CodeGen, opcode: std.wasm.MiscOpcode) error{OutOfMemory}!void {
- const extra_index = @as(u32, @intCast(func.mir_extra.items.len));
- try func.mir_extra.append(func.gpa, @intFromEnum(opcode));
- try func.addInst(.{ .tag = .misc_prefix, .data = .{ .payload = extra_index } });
+fn addExtended(cg: *CodeGen, opcode: std.wasm.MiscOpcode) error{OutOfMemory}!void {
+ const extra_index = @as(u32, @intCast(cg.mir_extra.items.len));
+ try cg.mir_extra.append(cg.gpa, @intFromEnum(opcode));
+ try cg.addInst(.{ .tag = .misc_prefix, .data = .{ .payload = extra_index } });
}
-fn addLabel(func: *CodeGen, tag: Mir.Inst.Tag, label: u32) error{OutOfMemory}!void {
- try func.addInst(.{ .tag = tag, .data = .{ .label = label } });
+fn addLabel(cg: *CodeGen, tag: Mir.Inst.Tag, label: u32) error{OutOfMemory}!void {
+ try cg.addInst(.{ .tag = tag, .data = .{ .label = label } });
}
-fn addIpIndex(func: *CodeGen, tag: Mir.Inst.Tag, i: InternPool.Index) Allocator.Error!void {
- try func.addInst(.{ .tag = tag, .data = .{ .ip_index = i } });
+fn addIpIndex(cg: *CodeGen, tag: Mir.Inst.Tag, i: InternPool.Index) Allocator.Error!void {
+ try cg.addInst(.{ .tag = tag, .data = .{ .ip_index = i } });
}
-fn addNav(func: *CodeGen, tag: Mir.Inst.Tag, i: InternPool.Nav.Index) Allocator.Error!void {
- try func.addInst(.{ .tag = tag, .data = .{ .nav_index = i } });
+fn addNav(cg: *CodeGen, tag: Mir.Inst.Tag, i: InternPool.Nav.Index) Allocator.Error!void {
+ try cg.addInst(.{ .tag = tag, .data = .{ .nav_index = i } });
}
/// Accepts an unsigned 32bit integer rather than a signed integer to
/// prevent us from having to bitcast multiple times as most values
/// within codegen are represented as unsigned rather than signed.
-fn addImm32(func: *CodeGen, imm: u32) error{OutOfMemory}!void {
- try func.addInst(.{ .tag = .i32_const, .data = .{ .imm32 = @bitCast(imm) } });
+fn addImm32(cg: *CodeGen, imm: u32) error{OutOfMemory}!void {
+ try cg.addInst(.{ .tag = .i32_const, .data = .{ .imm32 = @bitCast(imm) } });
}
/// Accepts an unsigned 64bit integer rather than a signed integer to
/// prevent us from having to bitcast multiple times as most values
/// within codegen are represented as unsigned rather than signed.
-fn addImm64(func: *CodeGen, imm: u64) error{OutOfMemory}!void {
- const extra_index = try func.addExtra(Mir.Imm64.init(imm));
- try func.addInst(.{ .tag = .i64_const, .data = .{ .payload = extra_index } });
+fn addImm64(cg: *CodeGen, imm: u64) error{OutOfMemory}!void {
+ const extra_index = try cg.addExtra(Mir.Imm64.init(imm));
+ try cg.addInst(.{ .tag = .i64_const, .data = .{ .payload = extra_index } });
}
/// Accepts the index into the list of 128bit-immediates
-fn addImm128(func: *CodeGen, index: u32) error{OutOfMemory}!void {
- const simd_values = func.simd_immediates.items[index];
- const extra_index = @as(u32, @intCast(func.mir_extra.items.len));
+fn addImm128(cg: *CodeGen, index: u32) error{OutOfMemory}!void {
+ const simd_values = cg.simd_immediates.items[index];
+ const extra_index = @as(u32, @intCast(cg.mir_extra.items.len));
// tag + 128bit value
- try func.mir_extra.ensureUnusedCapacity(func.gpa, 5);
- func.mir_extra.appendAssumeCapacity(@intFromEnum(std.wasm.SimdOpcode.v128_const));
- func.mir_extra.appendSliceAssumeCapacity(@alignCast(mem.bytesAsSlice(u32, &simd_values)));
- try func.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
+ try cg.mir_extra.ensureUnusedCapacity(cg.gpa, 5);
+ cg.mir_extra.appendAssumeCapacity(@intFromEnum(std.wasm.SimdOpcode.v128_const));
+ cg.mir_extra.appendSliceAssumeCapacity(@alignCast(mem.bytesAsSlice(u32, &simd_values)));
+ try cg.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
}
-fn addFloat64(func: *CodeGen, float: f64) error{OutOfMemory}!void {
- const extra_index = try func.addExtra(Mir.Float64.init(float));
- try func.addInst(.{ .tag = .f64_const, .data = .{ .payload = extra_index } });
+fn addFloat64(cg: *CodeGen, float: f64) error{OutOfMemory}!void {
+ const extra_index = try cg.addExtra(Mir.Float64.init(float));
+ try cg.addInst(.{ .tag = .f64_const, .data = .{ .payload = extra_index } });
}
/// Inserts an instruction to load/store from/to wasm's linear memory dependent on the given `tag`.
-fn addMemArg(func: *CodeGen, tag: Mir.Inst.Tag, mem_arg: Mir.MemArg) error{OutOfMemory}!void {
- const extra_index = try func.addExtra(mem_arg);
- try func.addInst(.{ .tag = tag, .data = .{ .payload = extra_index } });
+fn addMemArg(cg: *CodeGen, tag: Mir.Inst.Tag, mem_arg: Mir.MemArg) error{OutOfMemory}!void {
+ const extra_index = try cg.addExtra(mem_arg);
+ try cg.addInst(.{ .tag = tag, .data = .{ .payload = extra_index } });
}
/// Inserts an instruction from the 'atomics' feature which accesses wasm's linear memory dependent on the
/// given `tag`.
-fn addAtomicMemArg(func: *CodeGen, tag: std.wasm.AtomicsOpcode, mem_arg: Mir.MemArg) error{OutOfMemory}!void {
- const extra_index = try func.addExtra(@as(struct { val: u32 }, .{ .val = @intFromEnum(tag) }));
- _ = try func.addExtra(mem_arg);
- try func.addInst(.{ .tag = .atomics_prefix, .data = .{ .payload = extra_index } });
+fn addAtomicMemArg(cg: *CodeGen, tag: std.wasm.AtomicsOpcode, mem_arg: Mir.MemArg) error{OutOfMemory}!void {
+ const extra_index = try cg.addExtra(@as(struct { val: u32 }, .{ .val = @intFromEnum(tag) }));
+ _ = try cg.addExtra(mem_arg);
+ try cg.addInst(.{ .tag = .atomics_prefix, .data = .{ .payload = extra_index } });
}
/// Helper function to emit atomic mir opcodes.
-fn addAtomicTag(func: *CodeGen, tag: std.wasm.AtomicsOpcode) error{OutOfMemory}!void {
- const extra_index = try func.addExtra(@as(struct { val: u32 }, .{ .val = @intFromEnum(tag) }));
- try func.addInst(.{ .tag = .atomics_prefix, .data = .{ .payload = extra_index } });
+fn addAtomicTag(cg: *CodeGen, tag: std.wasm.AtomicsOpcode) error{OutOfMemory}!void {
+ const extra_index = try cg.addExtra(@as(struct { val: u32 }, .{ .val = @intFromEnum(tag) }));
+ try cg.addInst(.{ .tag = .atomics_prefix, .data = .{ .payload = extra_index } });
}
/// Appends entries to `mir_extra` based on the type of `extra`.
/// Returns the index into `mir_extra`
-fn addExtra(func: *CodeGen, extra: anytype) error{OutOfMemory}!u32 {
+fn addExtra(cg: *CodeGen, extra: anytype) error{OutOfMemory}!u32 {
const fields = std.meta.fields(@TypeOf(extra));
- try func.mir_extra.ensureUnusedCapacity(func.gpa, fields.len);
- return func.addExtraAssumeCapacity(extra);
+ try cg.mir_extra.ensureUnusedCapacity(cg.gpa, fields.len);
+ return cg.addExtraAssumeCapacity(extra);
}
/// Appends entries to `mir_extra` based on the type of `extra`.
/// Returns the index into `mir_extra`
-fn addExtraAssumeCapacity(func: *CodeGen, extra: anytype) error{OutOfMemory}!u32 {
+fn addExtraAssumeCapacity(cg: *CodeGen, extra: anytype) error{OutOfMemory}!u32 {
const fields = std.meta.fields(@TypeOf(extra));
- const result = @as(u32, @intCast(func.mir_extra.items.len));
+ const result = @as(u32, @intCast(cg.mir_extra.items.len));
inline for (fields) |field| {
- func.mir_extra.appendAssumeCapacity(switch (field.type) {
+ cg.mir_extra.appendAssumeCapacity(switch (field.type) {
u32 => @field(extra, field.name),
i32 => @bitCast(@field(extra, field.name)),
InternPool.Index => @intFromEnum(@field(extra, field.name)),
@@ -1015,24 +1013,24 @@ fn genBlockType(ty: Type, pt: Zcu.PerThread, target: *const std.Target) u8 {
}
/// Writes the bytecode depending on the given `WValue` in `val`
-fn emitWValue(func: *CodeGen, value: WValue) InnerError!void {
+fn emitWValue(cg: *CodeGen, value: WValue) InnerError!void {
switch (value) {
.dead => unreachable, // reference to free'd `WValue` (missing reuseOperand?)
.none, .stack => {}, // no-op
- .local => |idx| try func.addLabel(.local_get, idx.value),
- .imm32 => |val| try func.addImm32(val),
- .imm64 => |val| try func.addImm64(val),
- .imm128 => |val| try func.addImm128(val),
- .float32 => |val| try func.addInst(.{ .tag = .f32_const, .data = .{ .float32 = val } }),
- .float64 => |val| try func.addFloat64(val),
+ .local => |idx| try cg.addLabel(.local_get, idx.value),
+ .imm32 => |val| try cg.addImm32(val),
+ .imm64 => |val| try cg.addImm64(val),
+ .imm128 => |val| try cg.addImm128(val),
+ .float32 => |val| try cg.addInst(.{ .tag = .f32_const, .data = .{ .float32 = val } }),
+ .float64 => |val| try cg.addFloat64(val),
.nav_ref => |nav_ref| {
if (nav_ref.offset == 0) {
- try func.addInst(.{ .tag = .nav_ref, .data = .{ .nav_index = nav_ref.nav_index } });
+ try cg.addInst(.{ .tag = .nav_ref, .data = .{ .nav_index = nav_ref.nav_index } });
} else {
- try func.addInst(.{
+ try cg.addInst(.{
.tag = .nav_ref_off,
.data = .{
- .payload = try func.addExtra(Mir.NavRefOff{
+ .payload = try cg.addExtra(Mir.NavRefOff{
.nav_index = nav_ref.nav_index,
.offset = nav_ref.offset,
}),
@@ -1042,12 +1040,12 @@ fn emitWValue(func: *CodeGen, value: WValue) InnerError!void {
},
.uav_ref => |uav| {
if (uav.offset == 0) {
- try func.addInst(.{ .tag = .uav_ref, .data = .{ .ip_index = uav.ip_index } });
+ try cg.addInst(.{ .tag = .uav_ref, .data = .{ .ip_index = uav.ip_index } });
} else {
- try func.addInst(.{
+ try cg.addInst(.{
.tag = .uav_ref_off,
.data = .{
- .payload = try func.addExtra(Mir.UavRefOff{
+ .payload = try cg.addExtra(Mir.UavRefOff{
.ip_index = uav.ip_index,
.offset = uav.offset,
}),
@@ -1055,7 +1053,7 @@ fn emitWValue(func: *CodeGen, value: WValue) InnerError!void {
});
}
},
- .stack_offset => try func.addLabel(.local_get, func.bottom_stack_value.local.value), // caller must ensure to address the offset
+ .stack_offset => try cg.addLabel(.local_get, cg.bottom_stack_value.local.value), // caller must ensure to address the offset
}
}
@@ -1063,7 +1061,7 @@ fn emitWValue(func: *CodeGen, value: WValue) InnerError!void {
/// The old `WValue` found at instruction `ref` is then replaced by the
/// modified `WValue` and returned. When given a non-local or non-stack-offset,
/// returns the given `operand` itfunc instead.
-fn reuseOperand(func: *CodeGen, ref: Air.Inst.Ref, operand: WValue) WValue {
+fn reuseOperand(cg: *CodeGen, ref: Air.Inst.Ref, operand: WValue) WValue {
if (operand != .local and operand != .stack_offset) return operand;
var new_value = operand;
switch (new_value) {
@@ -1071,17 +1069,17 @@ fn reuseOperand(func: *CodeGen, ref: Air.Inst.Ref, operand: WValue) WValue {
.stack_offset => |*stack_offset| stack_offset.references += 1,
else => unreachable,
}
- const old_value = func.getResolvedInst(ref);
+ const old_value = cg.getResolvedInst(ref);
old_value.* = new_value;
return new_value;
}
/// From a reference, returns its resolved `WValue`.
/// It's illegal to provide a `Air.Inst.Ref` that hasn't been resolved yet.
-fn getResolvedInst(func: *CodeGen, ref: Air.Inst.Ref) *WValue {
- var index = func.branches.items.len;
+fn getResolvedInst(cg: *CodeGen, ref: Air.Inst.Ref) *WValue {
+ var index = cg.branches.items.len;
while (index > 0) : (index -= 1) {
- const branch = func.branches.items[index - 1];
+ const branch = cg.branches.items[index - 1];
if (branch.values.getPtr(ref)) |value| {
return value;
}
@@ -1091,31 +1089,31 @@ fn getResolvedInst(func: *CodeGen, ref: Air.Inst.Ref) *WValue {
/// Creates one locals for a given `Type`.
/// Returns a corresponding `Wvalue` with `local` as active tag
-fn allocLocal(func: *CodeGen, ty: Type) InnerError!WValue {
- const pt = func.pt;
- const valtype = typeToValtype(ty, pt, func.target);
+fn allocLocal(cg: *CodeGen, ty: Type) InnerError!WValue {
+ const pt = cg.pt;
+ const valtype = typeToValtype(ty, pt, cg.target);
const index_or_null = switch (valtype) {
- .i32 => func.free_locals_i32.popOrNull(),
- .i64 => func.free_locals_i64.popOrNull(),
- .f32 => func.free_locals_f32.popOrNull(),
- .f64 => func.free_locals_f64.popOrNull(),
- .v128 => func.free_locals_v128.popOrNull(),
+ .i32 => cg.free_locals_i32.popOrNull(),
+ .i64 => cg.free_locals_i64.popOrNull(),
+ .f32 => cg.free_locals_f32.popOrNull(),
+ .f64 => cg.free_locals_f64.popOrNull(),
+ .v128 => cg.free_locals_v128.popOrNull(),
};
if (index_or_null) |index| {
log.debug("reusing local ({d}) of type {}", .{ index, valtype });
return .{ .local = .{ .value = index, .references = 1 } };
}
log.debug("new local of type {}", .{valtype});
- return func.ensureAllocLocal(ty);
+ return cg.ensureAllocLocal(ty);
}
/// Ensures a new local will be created. This is useful when it's useful
/// to use a zero-initialized local.
-fn ensureAllocLocal(func: *CodeGen, ty: Type) InnerError!WValue {
- const pt = func.pt;
- try func.locals.append(func.gpa, genValtype(ty, pt, func.target));
- const initial_index = func.local_index;
- func.local_index += 1;
+fn ensureAllocLocal(cg: *CodeGen, ty: Type) InnerError!WValue {
+ const pt = cg.pt;
+ try cg.locals.append(cg.gpa, genValtype(ty, pt, cg.target));
+ const initial_index = cg.local_index;
+ cg.local_index += 1;
return .{ .local = .{ .value = initial_index, .references = 1 } };
}
@@ -1291,10 +1289,10 @@ pub fn function(
) Error!Function {
const zcu = pt.zcu;
const gpa = zcu.gpa;
- const func = zcu.funcInfo(func_index);
- const file_scope = zcu.navFileScope(func.owner_nav);
+ const cg = zcu.funcInfo(func_index);
+ const file_scope = zcu.navFileScope(cg.owner_nav);
const target = &file_scope.mod.resolved_target.result;
- const fn_ty = zcu.navValue(func.owner_nav).typeOf(zcu);
+ const fn_ty = zcu.navValue(cg.owner_nav).typeOf(zcu);
const fn_info = zcu.typeToFunc(fn_ty).?;
const ip = &zcu.intern_pool;
const fn_ty_index = try genFunctype(wasm, fn_info.cc, fn_info.param_types.get(ip), Type.fromInterned(fn_info.return_type), pt, target);
@@ -1309,7 +1307,7 @@ pub fn function(
.pt = pt,
.air = air,
.liveness = liveness,
- .owner_nav = func.owner_nav,
+ .owner_nav = cg.owner_nav,
.target = target,
.ptr_size = switch (target.cpu.arch) {
.wasm32 => .wasm32,
@@ -1470,89 +1468,89 @@ fn firstParamSRet(
/// Lowers a Zig type and its value based on a given calling convention to ensure
/// it matches the ABI.
-fn lowerArg(func: *CodeGen, cc: std.builtin.CallingConvention, ty: Type, value: WValue) !void {
+fn lowerArg(cg: *CodeGen, cc: std.builtin.CallingConvention, ty: Type, value: WValue) !void {
if (cc != .wasm_watc) {
- return func.lowerToStack(value);
+ return cg.lowerToStack(value);
}
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
const ty_classes = abi.classifyType(ty, zcu);
assert(ty_classes[0] != .none);
switch (ty.zigTypeTag(zcu)) {
.@"struct", .@"union" => {
if (ty_classes[0] == .indirect) {
- return func.lowerToStack(value);
+ return cg.lowerToStack(value);
}
assert(ty_classes[0] == .direct);
const scalar_type = abi.scalarType(ty, zcu);
switch (value) {
- .nav_ref, .stack_offset => _ = try func.load(value, scalar_type, 0),
+ .nav_ref, .stack_offset => _ = try cg.load(value, scalar_type, 0),
.dead => unreachable,
- else => try func.emitWValue(value),
+ else => try cg.emitWValue(value),
}
},
.int, .float => {
if (ty_classes[1] == .none) {
- return func.lowerToStack(value);
+ return cg.lowerToStack(value);
}
assert(ty_classes[0] == .direct and ty_classes[1] == .direct);
assert(ty.abiSize(zcu) == 16);
// in this case we have an integer or float that must be lowered as 2 i64's.
- try func.emitWValue(value);
- try func.addMemArg(.i64_load, .{ .offset = value.offset(), .alignment = 8 });
- try func.emitWValue(value);
- try func.addMemArg(.i64_load, .{ .offset = value.offset() + 8, .alignment = 8 });
+ try cg.emitWValue(value);
+ try cg.addMemArg(.i64_load, .{ .offset = value.offset(), .alignment = 8 });
+ try cg.emitWValue(value);
+ try cg.addMemArg(.i64_load, .{ .offset = value.offset() + 8, .alignment = 8 });
},
- else => return func.lowerToStack(value),
+ else => return cg.lowerToStack(value),
}
}
/// Lowers a `WValue` to the stack. This means when the `value` results in
/// `.stack_offset` we calculate the pointer of this offset and use that.
/// The value is left on the stack, and not stored in any temporary.
-fn lowerToStack(func: *CodeGen, value: WValue) !void {
+fn lowerToStack(cg: *CodeGen, value: WValue) !void {
switch (value) {
.stack_offset => |offset| {
- try func.emitWValue(value);
+ try cg.emitWValue(value);
if (offset.value > 0) {
- switch (func.ptr_size) {
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.addImm32(offset.value);
- try func.addTag(.i32_add);
+ try cg.addImm32(offset.value);
+ try cg.addTag(.i32_add);
},
.wasm64 => {
- try func.addImm64(offset.value);
- try func.addTag(.i64_add);
+ try cg.addImm64(offset.value);
+ try cg.addTag(.i64_add);
},
}
}
},
- else => try func.emitWValue(value),
+ else => try cg.emitWValue(value),
}
}
/// Creates a local for the initial stack value
/// Asserts `initial_stack_value` is `.none`
-fn initializeStack(func: *CodeGen) !void {
- assert(func.initial_stack_value == .none);
+fn initializeStack(cg: *CodeGen) !void {
+ assert(cg.initial_stack_value == .none);
// Reserve a local to store the current stack pointer
// We can later use this local to set the stack pointer back to the value
// we have stored here.
- func.initial_stack_value = try func.ensureAllocLocal(Type.usize);
+ cg.initial_stack_value = try cg.ensureAllocLocal(Type.usize);
// Also reserve a local to store the bottom stack value
- func.bottom_stack_value = try func.ensureAllocLocal(Type.usize);
+ cg.bottom_stack_value = try cg.ensureAllocLocal(Type.usize);
}
/// Reads the stack pointer from `Context.initial_stack_value` and writes it
/// to the global stack pointer variable
-fn restoreStackPointer(func: *CodeGen) !void {
+fn restoreStackPointer(cg: *CodeGen) !void {
// only restore the pointer if it was initialized
- if (func.initial_stack_value == .none) return;
+ if (cg.initial_stack_value == .none) return;
// Get the original stack pointer's value
- try func.emitWValue(func.initial_stack_value);
+ try cg.emitWValue(cg.initial_stack_value);
- try func.addTag(.global_set_sp);
+ try cg.addTag(.global_set_sp);
}
/// From a given type, will create space on the virtual stack to store the value of such type.
@@ -1561,24 +1559,24 @@ fn restoreStackPointer(func: *CodeGen) !void {
/// moveStack unless a local was already created to store the pointer.
///
/// Asserts Type has codegenbits
-fn allocStack(func: *CodeGen, ty: Type) !WValue {
- const zcu = func.pt.zcu;
+fn allocStack(cg: *CodeGen, ty: Type) !WValue {
+ const zcu = cg.pt.zcu;
assert(ty.hasRuntimeBitsIgnoreComptime(zcu));
- if (func.initial_stack_value == .none) {
- try func.initializeStack();
+ if (cg.initial_stack_value == .none) {
+ try cg.initializeStack();
}
const abi_size = std.math.cast(u32, ty.abiSize(zcu)) orelse {
- return func.fail("Type {} with ABI size of {d} exceeds stack frame size", .{
- ty.fmt(func.pt), ty.abiSize(zcu),
+ return cg.fail("Type {} with ABI size of {d} exceeds stack frame size", .{
+ ty.fmt(cg.pt), ty.abiSize(zcu),
});
};
const abi_align = ty.abiAlignment(zcu);
- func.stack_alignment = func.stack_alignment.max(abi_align);
+ cg.stack_alignment = cg.stack_alignment.max(abi_align);
- const offset: u32 = @intCast(abi_align.forward(func.stack_size));
- defer func.stack_size = offset + abi_size;
+ const offset: u32 = @intCast(abi_align.forward(cg.stack_size));
+ defer cg.stack_size = offset + abi_size;
return .{ .stack_offset = .{ .value = offset, .references = 1 } };
}
@@ -1587,30 +1585,30 @@ fn allocStack(func: *CodeGen, ty: Type) !WValue {
/// the value of its type will live.
/// This is different from allocStack where this will use the pointer's alignment
/// if it is set, to ensure the stack alignment will be set correctly.
-fn allocStackPtr(func: *CodeGen, inst: Air.Inst.Index) !WValue {
- const pt = func.pt;
+fn allocStackPtr(cg: *CodeGen, inst: Air.Inst.Index) !WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ptr_ty = func.typeOfIndex(inst);
+ const ptr_ty = cg.typeOfIndex(inst);
const pointee_ty = ptr_ty.childType(zcu);
- if (func.initial_stack_value == .none) {
- try func.initializeStack();
+ if (cg.initial_stack_value == .none) {
+ try cg.initializeStack();
}
if (!pointee_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- return func.allocStack(Type.usize); // create a value containing just the stack pointer.
+ return cg.allocStack(Type.usize); // create a value containing just the stack pointer.
}
const abi_alignment = ptr_ty.ptrAlignment(zcu);
const abi_size = std.math.cast(u32, pointee_ty.abiSize(zcu)) orelse {
- return func.fail("Type {} with ABI size of {d} exceeds stack frame size", .{
+ return cg.fail("Type {} with ABI size of {d} exceeds stack frame size", .{
pointee_ty.fmt(pt), pointee_ty.abiSize(zcu),
});
};
- func.stack_alignment = func.stack_alignment.max(abi_alignment);
+ cg.stack_alignment = cg.stack_alignment.max(abi_alignment);
- const offset: u32 = @intCast(abi_alignment.forward(func.stack_size));
- defer func.stack_size = offset + abi_size;
+ const offset: u32 = @intCast(abi_alignment.forward(cg.stack_size));
+ defer cg.stack_size = offset + abi_size;
return .{ .stack_offset = .{ .value = offset, .references = 1 } };
}
@@ -1624,14 +1622,14 @@ fn toWasmBits(bits: u16) ?u16 {
/// Performs a copy of bytes for a given type. Copying all bytes
/// from rhs to lhs.
-fn memcpy(func: *CodeGen, dst: WValue, src: WValue, len: WValue) !void {
+fn memcpy(cg: *CodeGen, dst: WValue, src: WValue, len: WValue) !void {
// When bulk_memory is enabled, we lower it to wasm's memcpy instruction.
// If not, we lower it ourselves manually
- if (std.Target.wasm.featureSetHas(func.target.cpu.features, .bulk_memory)) {
- try func.lowerToStack(dst);
- try func.lowerToStack(src);
- try func.emitWValue(len);
- try func.addExtended(.memory_copy);
+ if (std.Target.wasm.featureSetHas(cg.target.cpu.features, .bulk_memory)) {
+ try cg.lowerToStack(dst);
+ try cg.lowerToStack(src);
+ try cg.emitWValue(len);
+ try cg.addExtended(.memory_copy);
return;
}
@@ -1652,17 +1650,17 @@ fn memcpy(func: *CodeGen, dst: WValue, src: WValue, len: WValue) !void {
const rhs_base = src.offset();
while (offset < length) : (offset += 1) {
// get dst's address to store the result
- try func.emitWValue(dst);
+ try cg.emitWValue(dst);
// load byte from src's address
- try func.emitWValue(src);
- switch (func.ptr_size) {
+ try cg.emitWValue(src);
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.addMemArg(.i32_load8_u, .{ .offset = rhs_base + offset, .alignment = 1 });
- try func.addMemArg(.i32_store8, .{ .offset = lhs_base + offset, .alignment = 1 });
+ try cg.addMemArg(.i32_load8_u, .{ .offset = rhs_base + offset, .alignment = 1 });
+ try cg.addMemArg(.i32_store8, .{ .offset = lhs_base + offset, .alignment = 1 });
},
.wasm64 => {
- try func.addMemArg(.i64_load8_u, .{ .offset = rhs_base + offset, .alignment = 1 });
- try func.addMemArg(.i64_store8, .{ .offset = lhs_base + offset, .alignment = 1 });
+ try cg.addMemArg(.i64_load8_u, .{ .offset = rhs_base + offset, .alignment = 1 });
+ try cg.addMemArg(.i64_store8, .{ .offset = lhs_base + offset, .alignment = 1 });
},
}
}
@@ -1673,79 +1671,79 @@ fn memcpy(func: *CodeGen, dst: WValue, src: WValue, len: WValue) !void {
// allocate a local for the offset, and set it to 0.
// This to ensure that inside loops we correctly re-set the counter.
- var offset = try func.allocLocal(Type.usize); // local for counter
- defer offset.free(func);
- switch (func.ptr_size) {
- .wasm32 => try func.addImm32(0),
- .wasm64 => try func.addImm64(0),
+ var offset = try cg.allocLocal(Type.usize); // local for counter
+ defer offset.free(cg);
+ switch (cg.ptr_size) {
+ .wasm32 => try cg.addImm32(0),
+ .wasm64 => try cg.addImm64(0),
}
- try func.addLabel(.local_set, offset.local.value);
+ try cg.addLabel(.local_set, offset.local.value);
// outer block to jump to when loop is done
- try func.startBlock(.block, std.wasm.block_empty);
- try func.startBlock(.loop, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.loop, std.wasm.block_empty);
// loop condition (offset == length -> break)
{
- try func.emitWValue(offset);
- try func.emitWValue(len);
- switch (func.ptr_size) {
- .wasm32 => try func.addTag(.i32_eq),
- .wasm64 => try func.addTag(.i64_eq),
+ try cg.emitWValue(offset);
+ try cg.emitWValue(len);
+ switch (cg.ptr_size) {
+ .wasm32 => try cg.addTag(.i32_eq),
+ .wasm64 => try cg.addTag(.i64_eq),
}
- try func.addLabel(.br_if, 1); // jump out of loop into outer block (finished)
+ try cg.addLabel(.br_if, 1); // jump out of loop into outer block (finished)
}
// get dst ptr
{
- try func.emitWValue(dst);
- try func.emitWValue(offset);
- switch (func.ptr_size) {
- .wasm32 => try func.addTag(.i32_add),
- .wasm64 => try func.addTag(.i64_add),
+ try cg.emitWValue(dst);
+ try cg.emitWValue(offset);
+ switch (cg.ptr_size) {
+ .wasm32 => try cg.addTag(.i32_add),
+ .wasm64 => try cg.addTag(.i64_add),
}
}
// get src value and also store in dst
{
- try func.emitWValue(src);
- try func.emitWValue(offset);
- switch (func.ptr_size) {
+ try cg.emitWValue(src);
+ try cg.emitWValue(offset);
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.addTag(.i32_add);
- try func.addMemArg(.i32_load8_u, .{ .offset = src.offset(), .alignment = 1 });
- try func.addMemArg(.i32_store8, .{ .offset = dst.offset(), .alignment = 1 });
+ try cg.addTag(.i32_add);
+ try cg.addMemArg(.i32_load8_u, .{ .offset = src.offset(), .alignment = 1 });
+ try cg.addMemArg(.i32_store8, .{ .offset = dst.offset(), .alignment = 1 });
},
.wasm64 => {
- try func.addTag(.i64_add);
- try func.addMemArg(.i64_load8_u, .{ .offset = src.offset(), .alignment = 1 });
- try func.addMemArg(.i64_store8, .{ .offset = dst.offset(), .alignment = 1 });
+ try cg.addTag(.i64_add);
+ try cg.addMemArg(.i64_load8_u, .{ .offset = src.offset(), .alignment = 1 });
+ try cg.addMemArg(.i64_store8, .{ .offset = dst.offset(), .alignment = 1 });
},
}
}
// increment loop counter
{
- try func.emitWValue(offset);
- switch (func.ptr_size) {
+ try cg.emitWValue(offset);
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.addImm32(1);
- try func.addTag(.i32_add);
+ try cg.addImm32(1);
+ try cg.addTag(.i32_add);
},
.wasm64 => {
- try func.addImm64(1);
- try func.addTag(.i64_add);
+ try cg.addImm64(1);
+ try cg.addTag(.i64_add);
},
}
- try func.addLabel(.local_set, offset.local.value);
- try func.addLabel(.br, 0); // jump to start of loop
+ try cg.addLabel(.local_set, offset.local.value);
+ try cg.addLabel(.br, 0); // jump to start of loop
}
- try func.endBlock(); // close off loop block
- try func.endBlock(); // close off outer block
+ try cg.endBlock(); // close off loop block
+ try cg.endBlock(); // close off outer block
}
-fn ptrSize(func: *const CodeGen) u16 {
- return @divExact(func.target.ptrBitWidth(), 8);
+fn ptrSize(cg: *const CodeGen) u16 {
+ return @divExact(cg.target.ptrBitWidth(), 8);
}
/// For a given `Type`, will return true when the type will be passed
@@ -1837,214 +1835,214 @@ fn determineSimdStoreStrategy(ty: Type, zcu: *Zcu, target: *const std.Target) Si
/// This can be used to get a pointer to a struct field, error payload, etc.
/// By providing `modify` as action, it will modify the given `ptr_value` instead of making a new
/// local value to store the pointer. This allows for local re-use and improves binary size.
-fn buildPointerOffset(func: *CodeGen, ptr_value: WValue, offset: u64, action: enum { modify, new }) InnerError!WValue {
+fn buildPointerOffset(cg: *CodeGen, ptr_value: WValue, offset: u64, action: enum { modify, new }) InnerError!WValue {
// do not perform arithmetic when offset is 0.
if (offset == 0 and ptr_value.offset() == 0 and action == .modify) return ptr_value;
const result_ptr: WValue = switch (action) {
- .new => try func.ensureAllocLocal(Type.usize),
+ .new => try cg.ensureAllocLocal(Type.usize),
.modify => ptr_value,
};
- try func.emitWValue(ptr_value);
+ try cg.emitWValue(ptr_value);
if (offset + ptr_value.offset() > 0) {
- switch (func.ptr_size) {
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.addImm32(@intCast(offset + ptr_value.offset()));
- try func.addTag(.i32_add);
+ try cg.addImm32(@intCast(offset + ptr_value.offset()));
+ try cg.addTag(.i32_add);
},
.wasm64 => {
- try func.addImm64(offset + ptr_value.offset());
- try func.addTag(.i64_add);
+ try cg.addImm64(offset + ptr_value.offset());
+ try cg.addTag(.i64_add);
},
}
}
- try func.addLabel(.local_set, result_ptr.local.value);
+ try cg.addLabel(.local_set, result_ptr.local.value);
return result_ptr;
}
-fn genInst(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const air_tags = func.air.instructions.items(.tag);
+fn genInst(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const air_tags = cg.air.instructions.items(.tag);
return switch (air_tags[@intFromEnum(inst)]) {
.inferred_alloc, .inferred_alloc_comptime => unreachable,
- .add => func.airBinOp(inst, .add),
- .add_sat => func.airSatBinOp(inst, .add),
- .add_wrap => func.airWrapBinOp(inst, .add),
- .sub => func.airBinOp(inst, .sub),
- .sub_sat => func.airSatBinOp(inst, .sub),
- .sub_wrap => func.airWrapBinOp(inst, .sub),
- .mul => func.airBinOp(inst, .mul),
- .mul_sat => func.airSatMul(inst),
- .mul_wrap => func.airWrapBinOp(inst, .mul),
- .div_float, .div_exact => func.airDiv(inst),
- .div_trunc => func.airDivTrunc(inst),
- .div_floor => func.airDivFloor(inst),
- .bit_and => func.airBinOp(inst, .@"and"),
- .bit_or => func.airBinOp(inst, .@"or"),
- .bool_and => func.airBinOp(inst, .@"and"),
- .bool_or => func.airBinOp(inst, .@"or"),
- .rem => func.airRem(inst),
- .mod => func.airMod(inst),
- .shl => func.airWrapBinOp(inst, .shl),
- .shl_exact => func.airBinOp(inst, .shl),
- .shl_sat => func.airShlSat(inst),
- .shr, .shr_exact => func.airBinOp(inst, .shr),
- .xor => func.airBinOp(inst, .xor),
- .max => func.airMaxMin(inst, .max),
- .min => func.airMaxMin(inst, .min),
- .mul_add => func.airMulAdd(inst),
-
- .sqrt => func.airUnaryFloatOp(inst, .sqrt),
- .sin => func.airUnaryFloatOp(inst, .sin),
- .cos => func.airUnaryFloatOp(inst, .cos),
- .tan => func.airUnaryFloatOp(inst, .tan),
- .exp => func.airUnaryFloatOp(inst, .exp),
- .exp2 => func.airUnaryFloatOp(inst, .exp2),
- .log => func.airUnaryFloatOp(inst, .log),
- .log2 => func.airUnaryFloatOp(inst, .log2),
- .log10 => func.airUnaryFloatOp(inst, .log10),
- .floor => func.airUnaryFloatOp(inst, .floor),
- .ceil => func.airUnaryFloatOp(inst, .ceil),
- .round => func.airUnaryFloatOp(inst, .round),
- .trunc_float => func.airUnaryFloatOp(inst, .trunc),
- .neg => func.airUnaryFloatOp(inst, .neg),
-
- .abs => func.airAbs(inst),
-
- .add_with_overflow => func.airAddSubWithOverflow(inst, .add),
- .sub_with_overflow => func.airAddSubWithOverflow(inst, .sub),
- .shl_with_overflow => func.airShlWithOverflow(inst),
- .mul_with_overflow => func.airMulWithOverflow(inst),
-
- .clz => func.airClz(inst),
- .ctz => func.airCtz(inst),
-
- .cmp_eq => func.airCmp(inst, .eq),
- .cmp_gte => func.airCmp(inst, .gte),
- .cmp_gt => func.airCmp(inst, .gt),
- .cmp_lte => func.airCmp(inst, .lte),
- .cmp_lt => func.airCmp(inst, .lt),
- .cmp_neq => func.airCmp(inst, .neq),
-
- .cmp_vector => func.airCmpVector(inst),
- .cmp_lt_errors_len => func.airCmpLtErrorsLen(inst),
-
- .array_elem_val => func.airArrayElemVal(inst),
- .array_to_slice => func.airArrayToSlice(inst),
- .alloc => func.airAlloc(inst),
- .arg => func.airArg(inst),
- .bitcast => func.airBitcast(inst),
- .block => func.airBlock(inst),
- .trap => func.airTrap(inst),
- .breakpoint => func.airBreakpoint(inst),
- .br => func.airBr(inst),
- .repeat => func.airRepeat(inst),
- .switch_dispatch => return func.fail("TODO implement `switch_dispatch`", .{}),
- .int_from_bool => func.airIntFromBool(inst),
- .cond_br => func.airCondBr(inst),
- .intcast => func.airIntcast(inst),
- .fptrunc => func.airFptrunc(inst),
- .fpext => func.airFpext(inst),
- .int_from_float => func.airIntFromFloat(inst),
- .float_from_int => func.airFloatFromInt(inst),
- .get_union_tag => func.airGetUnionTag(inst),
-
- .@"try" => func.airTry(inst),
- .try_cold => func.airTry(inst),
- .try_ptr => func.airTryPtr(inst),
- .try_ptr_cold => func.airTryPtr(inst),
-
- .dbg_stmt => func.airDbgStmt(inst),
- .dbg_empty_stmt => try func.finishAir(inst, .none, &.{}),
- .dbg_inline_block => func.airDbgInlineBlock(inst),
- .dbg_var_ptr => func.airDbgVar(inst, .local_var, true),
- .dbg_var_val => func.airDbgVar(inst, .local_var, false),
- .dbg_arg_inline => func.airDbgVar(inst, .local_arg, false),
-
- .call => func.airCall(inst, .auto),
- .call_always_tail => func.airCall(inst, .always_tail),
- .call_never_tail => func.airCall(inst, .never_tail),
- .call_never_inline => func.airCall(inst, .never_inline),
-
- .is_err => func.airIsErr(inst, .i32_ne),
- .is_non_err => func.airIsErr(inst, .i32_eq),
-
- .is_null => func.airIsNull(inst, .i32_eq, .value),
- .is_non_null => func.airIsNull(inst, .i32_ne, .value),
- .is_null_ptr => func.airIsNull(inst, .i32_eq, .ptr),
- .is_non_null_ptr => func.airIsNull(inst, .i32_ne, .ptr),
-
- .load => func.airLoad(inst),
- .loop => func.airLoop(inst),
- .memset => func.airMemset(inst, false),
- .memset_safe => func.airMemset(inst, true),
- .not => func.airNot(inst),
- .optional_payload => func.airOptionalPayload(inst),
- .optional_payload_ptr => func.airOptionalPayloadPtr(inst),
- .optional_payload_ptr_set => func.airOptionalPayloadPtrSet(inst),
- .ptr_add => func.airPtrBinOp(inst, .add),
- .ptr_sub => func.airPtrBinOp(inst, .sub),
- .ptr_elem_ptr => func.airPtrElemPtr(inst),
- .ptr_elem_val => func.airPtrElemVal(inst),
- .int_from_ptr => func.airIntFromPtr(inst),
- .ret => func.airRet(inst),
- .ret_safe => func.airRet(inst), // TODO
- .ret_ptr => func.airRetPtr(inst),
- .ret_load => func.airRetLoad(inst),
- .splat => func.airSplat(inst),
- .select => func.airSelect(inst),
- .shuffle => func.airShuffle(inst),
- .reduce => func.airReduce(inst),
- .aggregate_init => func.airAggregateInit(inst),
- .union_init => func.airUnionInit(inst),
- .prefetch => func.airPrefetch(inst),
- .popcount => func.airPopcount(inst),
- .byte_swap => func.airByteSwap(inst),
- .bit_reverse => func.airBitReverse(inst),
-
- .slice => func.airSlice(inst),
- .slice_len => func.airSliceLen(inst),
- .slice_elem_val => func.airSliceElemVal(inst),
- .slice_elem_ptr => func.airSliceElemPtr(inst),
- .slice_ptr => func.airSlicePtr(inst),
- .ptr_slice_len_ptr => func.airPtrSliceFieldPtr(inst, func.ptrSize()),
- .ptr_slice_ptr_ptr => func.airPtrSliceFieldPtr(inst, 0),
- .store => func.airStore(inst, false),
- .store_safe => func.airStore(inst, true),
-
- .set_union_tag => func.airSetUnionTag(inst),
- .struct_field_ptr => func.airStructFieldPtr(inst),
- .struct_field_ptr_index_0 => func.airStructFieldPtrIndex(inst, 0),
- .struct_field_ptr_index_1 => func.airStructFieldPtrIndex(inst, 1),
- .struct_field_ptr_index_2 => func.airStructFieldPtrIndex(inst, 2),
- .struct_field_ptr_index_3 => func.airStructFieldPtrIndex(inst, 3),
- .struct_field_val => func.airStructFieldVal(inst),
- .field_parent_ptr => func.airFieldParentPtr(inst),
-
- .switch_br => func.airSwitchBr(inst),
- .loop_switch_br => return func.fail("TODO implement `loop_switch_br`", .{}),
- .trunc => func.airTrunc(inst),
- .unreach => func.airUnreachable(inst),
-
- .wrap_optional => func.airWrapOptional(inst),
- .unwrap_errunion_payload => func.airUnwrapErrUnionPayload(inst, false),
- .unwrap_errunion_payload_ptr => func.airUnwrapErrUnionPayload(inst, true),
- .unwrap_errunion_err => func.airUnwrapErrUnionError(inst, false),
- .unwrap_errunion_err_ptr => func.airUnwrapErrUnionError(inst, true),
- .wrap_errunion_payload => func.airWrapErrUnionPayload(inst),
- .wrap_errunion_err => func.airWrapErrUnionErr(inst),
- .errunion_payload_ptr_set => func.airErrUnionPayloadPtrSet(inst),
- .error_name => func.airErrorName(inst),
-
- .wasm_memory_size => func.airWasmMemorySize(inst),
- .wasm_memory_grow => func.airWasmMemoryGrow(inst),
-
- .memcpy => func.airMemcpy(inst),
-
- .ret_addr => func.airRetAddr(inst),
- .tag_name => func.airTagName(inst),
-
- .error_set_has_value => func.airErrorSetHasValue(inst),
- .frame_addr => func.airFrameAddress(inst),
+ .add => cg.airBinOp(inst, .add),
+ .add_sat => cg.airSatBinOp(inst, .add),
+ .add_wrap => cg.airWrapBinOp(inst, .add),
+ .sub => cg.airBinOp(inst, .sub),
+ .sub_sat => cg.airSatBinOp(inst, .sub),
+ .sub_wrap => cg.airWrapBinOp(inst, .sub),
+ .mul => cg.airBinOp(inst, .mul),
+ .mul_sat => cg.airSatMul(inst),
+ .mul_wrap => cg.airWrapBinOp(inst, .mul),
+ .div_float, .div_exact => cg.airDiv(inst),
+ .div_trunc => cg.airDivTrunc(inst),
+ .div_floor => cg.airDivFloor(inst),
+ .bit_and => cg.airBinOp(inst, .@"and"),
+ .bit_or => cg.airBinOp(inst, .@"or"),
+ .bool_and => cg.airBinOp(inst, .@"and"),
+ .bool_or => cg.airBinOp(inst, .@"or"),
+ .rem => cg.airRem(inst),
+ .mod => cg.airMod(inst),
+ .shl => cg.airWrapBinOp(inst, .shl),
+ .shl_exact => cg.airBinOp(inst, .shl),
+ .shl_sat => cg.airShlSat(inst),
+ .shr, .shr_exact => cg.airBinOp(inst, .shr),
+ .xor => cg.airBinOp(inst, .xor),
+ .max => cg.airMaxMin(inst, .max),
+ .min => cg.airMaxMin(inst, .min),
+ .mul_add => cg.airMulAdd(inst),
+
+ .sqrt => cg.airUnaryFloatOp(inst, .sqrt),
+ .sin => cg.airUnaryFloatOp(inst, .sin),
+ .cos => cg.airUnaryFloatOp(inst, .cos),
+ .tan => cg.airUnaryFloatOp(inst, .tan),
+ .exp => cg.airUnaryFloatOp(inst, .exp),
+ .exp2 => cg.airUnaryFloatOp(inst, .exp2),
+ .log => cg.airUnaryFloatOp(inst, .log),
+ .log2 => cg.airUnaryFloatOp(inst, .log2),
+ .log10 => cg.airUnaryFloatOp(inst, .log10),
+ .floor => cg.airUnaryFloatOp(inst, .floor),
+ .ceil => cg.airUnaryFloatOp(inst, .ceil),
+ .round => cg.airUnaryFloatOp(inst, .round),
+ .trunc_float => cg.airUnaryFloatOp(inst, .trunc),
+ .neg => cg.airUnaryFloatOp(inst, .neg),
+
+ .abs => cg.airAbs(inst),
+
+ .add_with_overflow => cg.airAddSubWithOverflow(inst, .add),
+ .sub_with_overflow => cg.airAddSubWithOverflow(inst, .sub),
+ .shl_with_overflow => cg.airShlWithOverflow(inst),
+ .mul_with_overflow => cg.airMulWithOverflow(inst),
+
+ .clz => cg.airClz(inst),
+ .ctz => cg.airCtz(inst),
+
+ .cmp_eq => cg.airCmp(inst, .eq),
+ .cmp_gte => cg.airCmp(inst, .gte),
+ .cmp_gt => cg.airCmp(inst, .gt),
+ .cmp_lte => cg.airCmp(inst, .lte),
+ .cmp_lt => cg.airCmp(inst, .lt),
+ .cmp_neq => cg.airCmp(inst, .neq),
+
+ .cmp_vector => cg.airCmpVector(inst),
+ .cmp_lt_errors_len => cg.airCmpLtErrorsLen(inst),
+
+ .array_elem_val => cg.airArrayElemVal(inst),
+ .array_to_slice => cg.airArrayToSlice(inst),
+ .alloc => cg.airAlloc(inst),
+ .arg => cg.airArg(inst),
+ .bitcast => cg.airBitcast(inst),
+ .block => cg.airBlock(inst),
+ .trap => cg.airTrap(inst),
+ .breakpoint => cg.airBreakpoint(inst),
+ .br => cg.airBr(inst),
+ .repeat => cg.airRepeat(inst),
+ .switch_dispatch => return cg.fail("TODO implement `switch_dispatch`", .{}),
+ .int_from_bool => cg.airIntFromBool(inst),
+ .cond_br => cg.airCondBr(inst),
+ .intcast => cg.airIntcast(inst),
+ .fptrunc => cg.airFptrunc(inst),
+ .fpext => cg.airFpext(inst),
+ .int_from_float => cg.airIntFromFloat(inst),
+ .float_from_int => cg.airFloatFromInt(inst),
+ .get_union_tag => cg.airGetUnionTag(inst),
+
+ .@"try" => cg.airTry(inst),
+ .try_cold => cg.airTry(inst),
+ .try_ptr => cg.airTryPtr(inst),
+ .try_ptr_cold => cg.airTryPtr(inst),
+
+ .dbg_stmt => cg.airDbgStmt(inst),
+ .dbg_empty_stmt => try cg.finishAir(inst, .none, &.{}),
+ .dbg_inline_block => cg.airDbgInlineBlock(inst),
+ .dbg_var_ptr => cg.airDbgVar(inst, .local_var, true),
+ .dbg_var_val => cg.airDbgVar(inst, .local_var, false),
+ .dbg_arg_inline => cg.airDbgVar(inst, .local_arg, false),
+
+ .call => cg.airCall(inst, .auto),
+ .call_always_tail => cg.airCall(inst, .always_tail),
+ .call_never_tail => cg.airCall(inst, .never_tail),
+ .call_never_inline => cg.airCall(inst, .never_inline),
+
+ .is_err => cg.airIsErr(inst, .i32_ne),
+ .is_non_err => cg.airIsErr(inst, .i32_eq),
+
+ .is_null => cg.airIsNull(inst, .i32_eq, .value),
+ .is_non_null => cg.airIsNull(inst, .i32_ne, .value),
+ .is_null_ptr => cg.airIsNull(inst, .i32_eq, .ptr),
+ .is_non_null_ptr => cg.airIsNull(inst, .i32_ne, .ptr),
+
+ .load => cg.airLoad(inst),
+ .loop => cg.airLoop(inst),
+ .memset => cg.airMemset(inst, false),
+ .memset_safe => cg.airMemset(inst, true),
+ .not => cg.airNot(inst),
+ .optional_payload => cg.airOptionalPayload(inst),
+ .optional_payload_ptr => cg.airOptionalPayloadPtr(inst),
+ .optional_payload_ptr_set => cg.airOptionalPayloadPtrSet(inst),
+ .ptr_add => cg.airPtrBinOp(inst, .add),
+ .ptr_sub => cg.airPtrBinOp(inst, .sub),
+ .ptr_elem_ptr => cg.airPtrElemPtr(inst),
+ .ptr_elem_val => cg.airPtrElemVal(inst),
+ .int_from_ptr => cg.airIntFromPtr(inst),
+ .ret => cg.airRet(inst),
+ .ret_safe => cg.airRet(inst), // TODO
+ .ret_ptr => cg.airRetPtr(inst),
+ .ret_load => cg.airRetLoad(inst),
+ .splat => cg.airSplat(inst),
+ .select => cg.airSelect(inst),
+ .shuffle => cg.airShuffle(inst),
+ .reduce => cg.airReduce(inst),
+ .aggregate_init => cg.airAggregateInit(inst),
+ .union_init => cg.airUnionInit(inst),
+ .prefetch => cg.airPrefetch(inst),
+ .popcount => cg.airPopcount(inst),
+ .byte_swap => cg.airByteSwap(inst),
+ .bit_reverse => cg.airBitReverse(inst),
+
+ .slice => cg.airSlice(inst),
+ .slice_len => cg.airSliceLen(inst),
+ .slice_elem_val => cg.airSliceElemVal(inst),
+ .slice_elem_ptr => cg.airSliceElemPtr(inst),
+ .slice_ptr => cg.airSlicePtr(inst),
+ .ptr_slice_len_ptr => cg.airPtrSliceFieldPtr(inst, cg.ptrSize()),
+ .ptr_slice_ptr_ptr => cg.airPtrSliceFieldPtr(inst, 0),
+ .store => cg.airStore(inst, false),
+ .store_safe => cg.airStore(inst, true),
+
+ .set_union_tag => cg.airSetUnionTag(inst),
+ .struct_field_ptr => cg.airStructFieldPtr(inst),
+ .struct_field_ptr_index_0 => cg.airStructFieldPtrIndex(inst, 0),
+ .struct_field_ptr_index_1 => cg.airStructFieldPtrIndex(inst, 1),
+ .struct_field_ptr_index_2 => cg.airStructFieldPtrIndex(inst, 2),
+ .struct_field_ptr_index_3 => cg.airStructFieldPtrIndex(inst, 3),
+ .struct_field_val => cg.airStructFieldVal(inst),
+ .field_parent_ptr => cg.airFieldParentPtr(inst),
+
+ .switch_br => cg.airSwitchBr(inst),
+ .loop_switch_br => return cg.fail("TODO implement `loop_switch_br`", .{}),
+ .trunc => cg.airTrunc(inst),
+ .unreach => cg.airUnreachable(inst),
+
+ .wrap_optional => cg.airWrapOptional(inst),
+ .unwrap_errunion_payload => cg.airUnwrapErrUnionPayload(inst, false),
+ .unwrap_errunion_payload_ptr => cg.airUnwrapErrUnionPayload(inst, true),
+ .unwrap_errunion_err => cg.airUnwrapErrUnionError(inst, false),
+ .unwrap_errunion_err_ptr => cg.airUnwrapErrUnionError(inst, true),
+ .wrap_errunion_payload => cg.airWrapErrUnionPayload(inst),
+ .wrap_errunion_err => cg.airWrapErrUnionErr(inst),
+ .errunion_payload_ptr_set => cg.airErrUnionPayloadPtrSet(inst),
+ .error_name => cg.airErrorName(inst),
+
+ .wasm_memory_size => cg.airWasmMemorySize(inst),
+ .wasm_memory_grow => cg.airWasmMemoryGrow(inst),
+
+ .memcpy => cg.airMemcpy(inst),
+
+ .ret_addr => cg.airRetAddr(inst),
+ .tag_name => cg.airTagName(inst),
+
+ .error_set_has_value => cg.airErrorSetHasValue(inst),
+ .frame_addr => cg.airFrameAddress(inst),
.assembly,
.is_err_ptr,
@@ -2060,18 +2058,18 @@ fn genInst(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
.c_va_copy,
.c_va_end,
.c_va_start,
- => |tag| return func.fail("TODO: Implement wasm inst: {s}", .{@tagName(tag)}),
+ => |tag| return cg.fail("TODO: Implement wasm inst: {s}", .{@tagName(tag)}),
- .atomic_load => func.airAtomicLoad(inst),
+ .atomic_load => cg.airAtomicLoad(inst),
.atomic_store_unordered,
.atomic_store_monotonic,
.atomic_store_release,
.atomic_store_seq_cst,
// in WebAssembly, all atomic instructions are sequentially ordered.
- => func.airAtomicStore(inst),
- .atomic_rmw => func.airAtomicRmw(inst),
- .cmpxchg_weak => func.airCmpxchg(inst),
- .cmpxchg_strong => func.airCmpxchg(inst),
+ => cg.airAtomicStore(inst),
+ .atomic_rmw => cg.airAtomicRmw(inst),
+ .cmpxchg_weak => cg.airCmpxchg(inst),
+ .cmpxchg_strong => cg.airCmpxchg(inst),
.add_optimized,
.sub_optimized,
@@ -2092,12 +2090,12 @@ fn genInst(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
.cmp_vector_optimized,
.reduce_optimized,
.int_from_float_optimized,
- => return func.fail("TODO implement optimized float mode", .{}),
+ => return cg.fail("TODO implement optimized float mode", .{}),
.add_safe,
.sub_safe,
.mul_safe,
- => return func.fail("TODO implement safety_checked_instructions", .{}),
+ => return cg.fail("TODO implement safety_checked_instructions", .{}),
.work_item_id,
.work_group_size,
@@ -2106,124 +2104,124 @@ fn genInst(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
};
}
-fn genBody(func: *CodeGen, body: []const Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn genBody(cg: *CodeGen, body: []const Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
for (body) |inst| {
- if (func.liveness.isUnused(inst) and !func.air.mustLower(inst, ip)) {
+ if (cg.liveness.isUnused(inst) and !cg.air.mustLower(inst, ip)) {
continue;
}
- const old_bookkeeping_value = func.air_bookkeeping;
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, Liveness.bpi);
- try func.genInst(inst);
+ const old_bookkeeping_value = cg.air_bookkeeping;
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, Liveness.bpi);
+ try cg.genInst(inst);
- if (std.debug.runtime_safety and func.air_bookkeeping < old_bookkeeping_value + 1) {
+ if (std.debug.runtime_safety and cg.air_bookkeeping < old_bookkeeping_value + 1) {
std.debug.panic("Missing call to `finishAir` in AIR instruction %{d} ('{}')", .{
inst,
- func.air.instructions.items(.tag)[@intFromEnum(inst)],
+ cg.air.instructions.items(.tag)[@intFromEnum(inst)],
});
}
}
}
-fn airRet(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airRet(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
- const fn_info = zcu.typeToFunc(zcu.navValue(func.owner_nav).typeOf(zcu)).?;
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
+ const fn_info = zcu.typeToFunc(zcu.navValue(cg.owner_nav).typeOf(zcu)).?;
const ret_ty = Type.fromInterned(fn_info.return_type);
// result must be stored in the stack and we return a pointer
// to the stack instead
- if (func.return_value != .none) {
- try func.store(func.return_value, operand, ret_ty, 0);
+ if (cg.return_value != .none) {
+ try cg.store(cg.return_value, operand, ret_ty, 0);
} else if (fn_info.cc == .wasm_watc and ret_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
switch (ret_ty.zigTypeTag(zcu)) {
// Aggregate types can be lowered as a singular value
.@"struct", .@"union" => {
const scalar_type = abi.scalarType(ret_ty, zcu);
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
const opcode = buildOpcode(.{
.op = .load,
.width = @as(u8, @intCast(scalar_type.abiSize(zcu) * 8)),
.signedness = if (scalar_type.isSignedInt(zcu)) .signed else .unsigned,
- .valtype1 = typeToValtype(scalar_type, pt, func.target),
+ .valtype1 = typeToValtype(scalar_type, pt, cg.target),
});
- try func.addMemArg(Mir.Inst.Tag.fromOpcode(opcode), .{
+ try cg.addMemArg(Mir.Inst.Tag.fromOpcode(opcode), .{
.offset = operand.offset(),
.alignment = @intCast(scalar_type.abiAlignment(zcu).toByteUnits().?),
});
},
- else => try func.emitWValue(operand),
+ else => try cg.emitWValue(operand),
}
} else {
if (!ret_ty.hasRuntimeBitsIgnoreComptime(zcu) and ret_ty.isError(zcu)) {
- try func.addImm32(0);
+ try cg.addImm32(0);
} else {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
}
}
- try func.restoreStackPointer();
- try func.addTag(.@"return");
+ try cg.restoreStackPointer();
+ try cg.addTag(.@"return");
- return func.finishAir(inst, .none, &.{un_op});
+ return cg.finishAir(inst, .none, &.{un_op});
}
-fn airRetPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airRetPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const child_type = func.typeOfIndex(inst).childType(zcu);
+ const child_type = cg.typeOfIndex(inst).childType(zcu);
const result = result: {
if (!child_type.isFnOrHasRuntimeBitsIgnoreComptime(zcu)) {
- break :result try func.allocStack(Type.usize); // create pointer to void
+ break :result try cg.allocStack(Type.usize); // create pointer to void
}
- const fn_info = zcu.typeToFunc(zcu.navValue(func.owner_nav).typeOf(zcu)).?;
- if (firstParamSRet(fn_info.cc, Type.fromInterned(fn_info.return_type), pt, func.target)) {
- break :result func.return_value;
+ const fn_info = zcu.typeToFunc(zcu.navValue(cg.owner_nav).typeOf(zcu)).?;
+ if (firstParamSRet(fn_info.cc, Type.fromInterned(fn_info.return_type), pt, cg.target)) {
+ break :result cg.return_value;
}
- break :result try func.allocStackPtr(inst);
+ break :result try cg.allocStackPtr(inst);
};
- return func.finishAir(inst, result, &.{});
+ return cg.finishAir(inst, result, &.{});
}
-fn airRetLoad(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airRetLoad(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
- const ret_ty = func.typeOf(un_op).childType(zcu);
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
+ const ret_ty = cg.typeOf(un_op).childType(zcu);
- const fn_info = zcu.typeToFunc(zcu.navValue(func.owner_nav).typeOf(zcu)).?;
+ const fn_info = zcu.typeToFunc(zcu.navValue(cg.owner_nav).typeOf(zcu)).?;
if (!ret_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
if (ret_ty.isError(zcu)) {
- try func.addImm32(0);
+ try cg.addImm32(0);
}
- } else if (!firstParamSRet(fn_info.cc, Type.fromInterned(fn_info.return_type), pt, func.target)) {
+ } else if (!firstParamSRet(fn_info.cc, Type.fromInterned(fn_info.return_type), pt, cg.target)) {
// leave on the stack
- _ = try func.load(operand, ret_ty, 0);
+ _ = try cg.load(operand, ret_ty, 0);
}
- try func.restoreStackPointer();
- try func.addTag(.@"return");
- return func.finishAir(inst, .none, &.{un_op});
+ try cg.restoreStackPointer();
+ try cg.addTag(.@"return");
+ return cg.finishAir(inst, .none, &.{un_op});
}
-fn airCall(func: *CodeGen, inst: Air.Inst.Index, modifier: std.builtin.CallModifier) InnerError!void {
- const wasm = func.wasm;
- if (modifier == .always_tail) return func.fail("TODO implement tail calls for wasm", .{});
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- const extra = func.air.extraData(Air.Call, pl_op.payload);
- const args: []const Air.Inst.Ref = @ptrCast(func.air.extra[extra.end..][0..extra.data.args_len]);
- const ty = func.typeOf(pl_op.operand);
+fn airCall(cg: *CodeGen, inst: Air.Inst.Index, modifier: std.builtin.CallModifier) InnerError!void {
+ const wasm = cg.wasm;
+ if (modifier == .always_tail) return cg.fail("TODO implement tail calls for wasm", .{});
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+ const extra = cg.air.extraData(Air.Call, pl_op.payload);
+ const args: []const Air.Inst.Ref = @ptrCast(cg.air.extra[extra.end..][0..extra.data.args_len]);
+ const ty = cg.typeOf(pl_op.operand);
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
const fn_ty = switch (ty.zigTypeTag(zcu)) {
@@ -2233,10 +2231,10 @@ fn airCall(func: *CodeGen, inst: Air.Inst.Index, modifier: std.builtin.CallModif
};
const ret_ty = fn_ty.fnReturnType(zcu);
const fn_info = zcu.typeToFunc(fn_ty).?;
- const first_param_sret = firstParamSRet(fn_info.cc, Type.fromInterned(fn_info.return_type), pt, func.target);
+ const first_param_sret = firstParamSRet(fn_info.cc, Type.fromInterned(fn_info.return_type), pt, cg.target);
const callee: ?InternPool.Nav.Index = blk: {
- const func_val = (try func.air.value(pl_op.operand, pt)) orelse break :blk null;
+ const func_val = (try cg.air.value(pl_op.operand, pt)) orelse break :blk null;
switch (ip.indexToKey(func_val.toIntern())) {
inline .func, .@"extern" => |x| break :blk x.owner_nav,
@@ -2246,96 +2244,96 @@ fn airCall(func: *CodeGen, inst: Air.Inst.Index, modifier: std.builtin.CallModif
},
else => {},
}
- return func.fail("unable to lower callee to a function index", .{});
+ return cg.fail("unable to lower callee to a function index", .{});
};
const sret: WValue = if (first_param_sret) blk: {
- const sret_local = try func.allocStack(ret_ty);
- try func.lowerToStack(sret_local);
+ const sret_local = try cg.allocStack(ret_ty);
+ try cg.lowerToStack(sret_local);
break :blk sret_local;
} else .none;
for (args) |arg| {
- const arg_val = try func.resolveInst(arg);
+ const arg_val = try cg.resolveInst(arg);
- const arg_ty = func.typeOf(arg);
+ const arg_ty = cg.typeOf(arg);
if (!arg_ty.hasRuntimeBitsIgnoreComptime(zcu)) continue;
- try func.lowerArg(zcu.typeToFunc(fn_ty).?.cc, arg_ty, arg_val);
+ try cg.lowerArg(zcu.typeToFunc(fn_ty).?.cc, arg_ty, arg_val);
}
if (callee) |nav_index| {
- try func.addNav(.call_nav, nav_index);
+ try cg.addNav(.call_nav, nav_index);
} else {
// in this case we call a function pointer
// so load its value onto the stack
assert(ty.zigTypeTag(zcu) == .pointer);
- const operand = try func.resolveInst(pl_op.operand);
- try func.emitWValue(operand);
+ const operand = try cg.resolveInst(pl_op.operand);
+ try cg.emitWValue(operand);
- const fn_type_index = try genFunctype(wasm, fn_info.cc, fn_info.param_types.get(ip), Type.fromInterned(fn_info.return_type), pt, func.target);
- try func.addLabel(.call_indirect, @intFromEnum(fn_type_index));
+ const fn_type_index = try genFunctype(wasm, fn_info.cc, fn_info.param_types.get(ip), Type.fromInterned(fn_info.return_type), pt, cg.target);
+ try cg.addLabel(.call_indirect, @intFromEnum(fn_type_index));
}
const result_value = result_value: {
if (!ret_ty.hasRuntimeBitsIgnoreComptime(zcu) and !ret_ty.isError(zcu)) {
break :result_value .none;
} else if (ret_ty.isNoReturn(zcu)) {
- try func.addTag(.@"unreachable");
+ try cg.addTag(.@"unreachable");
break :result_value .none;
} else if (first_param_sret) {
break :result_value sret;
// TODO: Make this less fragile and optimize
} else if (zcu.typeToFunc(fn_ty).?.cc == .wasm_watc and ret_ty.zigTypeTag(zcu) == .@"struct" or ret_ty.zigTypeTag(zcu) == .@"union") {
- const result_local = try func.allocLocal(ret_ty);
- try func.addLabel(.local_set, result_local.local.value);
+ const result_local = try cg.allocLocal(ret_ty);
+ try cg.addLabel(.local_set, result_local.local.value);
const scalar_type = abi.scalarType(ret_ty, zcu);
- const result = try func.allocStack(scalar_type);
- try func.store(result, result_local, scalar_type, 0);
+ const result = try cg.allocStack(scalar_type);
+ try cg.store(result, result_local, scalar_type, 0);
break :result_value result;
} else {
- const result_local = try func.allocLocal(ret_ty);
- try func.addLabel(.local_set, result_local.local.value);
+ const result_local = try cg.allocLocal(ret_ty);
+ try cg.addLabel(.local_set, result_local.local.value);
break :result_value result_local;
}
};
- var bt = try func.iterateBigTomb(inst, 1 + args.len);
+ var bt = try cg.iterateBigTomb(inst, 1 + args.len);
bt.feed(pl_op.operand);
for (args) |arg| bt.feed(arg);
return bt.finishAir(result_value);
}
-fn airAlloc(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const value = try func.allocStackPtr(inst);
- return func.finishAir(inst, value, &.{});
+fn airAlloc(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const value = try cg.allocStackPtr(inst);
+ return cg.finishAir(inst, value, &.{});
}
-fn airStore(func: *CodeGen, inst: Air.Inst.Index, safety: bool) InnerError!void {
- const pt = func.pt;
+fn airStore(cg: *CodeGen, inst: Air.Inst.Index, safety: bool) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
if (safety) {
// TODO if the value is undef, write 0xaa bytes to dest
} else {
// TODO if the value is undef, don't lower this instruction
}
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
- const ptr_ty = func.typeOf(bin_op.lhs);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
+ const ptr_ty = cg.typeOf(bin_op.lhs);
const ptr_info = ptr_ty.ptrInfo(zcu);
const ty = ptr_ty.childType(zcu);
if (ptr_info.packed_offset.host_size == 0) {
- try func.store(lhs, rhs, ty, 0);
+ try cg.store(lhs, rhs, ty, 0);
} else {
// at this point we have a non-natural alignment, we must
// load the value, and then shift+or the rhs into the result location.
const int_elem_ty = try pt.intType(.unsigned, ptr_info.packed_offset.host_size * 8);
- if (isByRef(int_elem_ty, pt, func.target)) {
- return func.fail("TODO: airStore for pointers to bitfields with backing type larger than 64bits", .{});
+ if (isByRef(int_elem_ty, pt, cg.target)) {
+ return cg.fail("TODO: airStore for pointers to bitfields with backing type larger than 64bits", .{});
}
var mask = @as(u64, @intCast((@as(u65, 1) << @as(u7, @intCast(ty.bitSize(zcu)))) - 1));
@@ -2354,115 +2352,115 @@ fn airStore(func: *CodeGen, inst: Air.Inst.Index, safety: bool) InnerError!void
else
.{ .imm64 = ~@as(u64, 0) >> @intCast(64 - ty.bitSize(zcu)) };
- try func.emitWValue(lhs);
- const loaded = try func.load(lhs, int_elem_ty, 0);
- const anded = try func.binOp(loaded, mask_val, int_elem_ty, .@"and");
- const extended_value = try func.intcast(rhs, ty, int_elem_ty);
- const masked_value = try func.binOp(extended_value, wrap_mask_val, int_elem_ty, .@"and");
+ try cg.emitWValue(lhs);
+ const loaded = try cg.load(lhs, int_elem_ty, 0);
+ const anded = try cg.binOp(loaded, mask_val, int_elem_ty, .@"and");
+ const extended_value = try cg.intcast(rhs, ty, int_elem_ty);
+ const masked_value = try cg.binOp(extended_value, wrap_mask_val, int_elem_ty, .@"and");
const shifted_value = if (ptr_info.packed_offset.bit_offset > 0) shifted: {
- break :shifted try func.binOp(masked_value, shift_val, int_elem_ty, .shl);
+ break :shifted try cg.binOp(masked_value, shift_val, int_elem_ty, .shl);
} else masked_value;
- const result = try func.binOp(anded, shifted_value, int_elem_ty, .@"or");
+ const result = try cg.binOp(anded, shifted_value, int_elem_ty, .@"or");
// lhs is still on the stack
- try func.store(.stack, result, int_elem_ty, lhs.offset());
+ try cg.store(.stack, result, int_elem_ty, lhs.offset());
}
- return func.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
}
-fn store(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, offset: u32) InnerError!void {
+fn store(cg: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, offset: u32) InnerError!void {
assert(!(lhs != .stack and rhs == .stack));
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
const abi_size = ty.abiSize(zcu);
switch (ty.zigTypeTag(zcu)) {
.error_union => {
const pl_ty = ty.errorUnionPayload(zcu);
if (!pl_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- return func.store(lhs, rhs, Type.anyerror, 0);
+ return cg.store(lhs, rhs, Type.anyerror, 0);
}
const len = @as(u32, @intCast(abi_size));
- return func.memcpy(lhs, rhs, .{ .imm32 = len });
+ return cg.memcpy(lhs, rhs, .{ .imm32 = len });
},
.optional => {
if (ty.isPtrLikeOptional(zcu)) {
- return func.store(lhs, rhs, Type.usize, 0);
+ return cg.store(lhs, rhs, Type.usize, 0);
}
const pl_ty = ty.optionalChild(zcu);
if (!pl_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- return func.store(lhs, rhs, Type.u8, 0);
+ return cg.store(lhs, rhs, Type.u8, 0);
}
if (pl_ty.zigTypeTag(zcu) == .error_set) {
- return func.store(lhs, rhs, Type.anyerror, 0);
+ return cg.store(lhs, rhs, Type.anyerror, 0);
}
const len = @as(u32, @intCast(abi_size));
- return func.memcpy(lhs, rhs, .{ .imm32 = len });
+ return cg.memcpy(lhs, rhs, .{ .imm32 = len });
},
- .@"struct", .array, .@"union" => if (isByRef(ty, pt, func.target)) {
+ .@"struct", .array, .@"union" => if (isByRef(ty, pt, cg.target)) {
const len = @as(u32, @intCast(abi_size));
- return func.memcpy(lhs, rhs, .{ .imm32 = len });
+ return cg.memcpy(lhs, rhs, .{ .imm32 = len });
},
- .vector => switch (determineSimdStoreStrategy(ty, zcu, func.target)) {
+ .vector => switch (determineSimdStoreStrategy(ty, zcu, cg.target)) {
.unrolled => {
const len: u32 = @intCast(abi_size);
- return func.memcpy(lhs, rhs, .{ .imm32 = len });
+ return cg.memcpy(lhs, rhs, .{ .imm32 = len });
},
.direct => {
- try func.emitWValue(lhs);
- try func.lowerToStack(rhs);
+ try cg.emitWValue(lhs);
+ try cg.lowerToStack(rhs);
// TODO: Add helper functions for simd opcodes
- const extra_index: u32 = @intCast(func.mir_extra.items.len);
+ const extra_index: u32 = @intCast(cg.mir_extra.items.len);
// stores as := opcode, offset, alignment (opcode::memarg)
- try func.mir_extra.appendSlice(func.gpa, &[_]u32{
+ try cg.mir_extra.appendSlice(cg.gpa, &[_]u32{
@intFromEnum(std.wasm.SimdOpcode.v128_store),
offset + lhs.offset(),
@intCast(ty.abiAlignment(zcu).toByteUnits() orelse 0),
});
- return func.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
+ return cg.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
},
},
.pointer => {
if (ty.isSlice(zcu)) {
// store pointer first
// lower it to the stack so we do not have to store rhs into a local first
- try func.emitWValue(lhs);
- const ptr_local = try func.load(rhs, Type.usize, 0);
- try func.store(.stack, ptr_local, Type.usize, 0 + lhs.offset());
+ try cg.emitWValue(lhs);
+ const ptr_local = try cg.load(rhs, Type.usize, 0);
+ try cg.store(.stack, ptr_local, Type.usize, 0 + lhs.offset());
// retrieve length from rhs, and store that alongside lhs as well
- try func.emitWValue(lhs);
- const len_local = try func.load(rhs, Type.usize, func.ptrSize());
- try func.store(.stack, len_local, Type.usize, func.ptrSize() + lhs.offset());
+ try cg.emitWValue(lhs);
+ const len_local = try cg.load(rhs, Type.usize, cg.ptrSize());
+ try cg.store(.stack, len_local, Type.usize, cg.ptrSize() + lhs.offset());
return;
}
},
.int, .@"enum", .float => if (abi_size > 8 and abi_size <= 16) {
- try func.emitWValue(lhs);
- const lsb = try func.load(rhs, Type.u64, 0);
- try func.store(.stack, lsb, Type.u64, 0 + lhs.offset());
+ try cg.emitWValue(lhs);
+ const lsb = try cg.load(rhs, Type.u64, 0);
+ try cg.store(.stack, lsb, Type.u64, 0 + lhs.offset());
- try func.emitWValue(lhs);
- const msb = try func.load(rhs, Type.u64, 8);
- try func.store(.stack, msb, Type.u64, 8 + lhs.offset());
+ try cg.emitWValue(lhs);
+ const msb = try cg.load(rhs, Type.u64, 8);
+ try cg.store(.stack, msb, Type.u64, 8 + lhs.offset());
return;
} else if (abi_size > 16) {
- try func.memcpy(lhs, rhs, .{ .imm32 = @as(u32, @intCast(ty.abiSize(zcu))) });
+ try cg.memcpy(lhs, rhs, .{ .imm32 = @as(u32, @intCast(ty.abiSize(zcu))) });
},
else => if (abi_size > 8) {
- return func.fail("TODO: `store` for type `{}` with abisize `{d}`", .{
+ return cg.fail("TODO: `store` for type `{}` with abisize `{d}`", .{
ty.fmt(pt),
abi_size,
});
},
}
- try func.emitWValue(lhs);
+ try cg.emitWValue(lhs);
// In this case we're actually interested in storing the stack position
// into lhs, so we calculate that and emit that instead
- try func.lowerToStack(rhs);
+ try cg.lowerToStack(rhs);
- const valtype = typeToValtype(ty, pt, func.target);
+ const valtype = typeToValtype(ty, pt, cg.target);
const opcode = buildOpcode(.{
.valtype1 = valtype,
.width = @as(u8, @intCast(abi_size * 8)),
@@ -2470,7 +2468,7 @@ fn store(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, offset: u32) InnerE
});
// store rhs value at stack pointer's location in memory
- try func.addMemArg(
+ try cg.addMemArg(
Mir.Inst.Tag.fromOpcode(opcode),
.{
.offset = offset + lhs.offset(),
@@ -2479,26 +2477,26 @@ fn store(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, offset: u32) InnerE
);
}
-fn airLoad(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airLoad(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const operand = try cg.resolveInst(ty_op.operand);
const ty = ty_op.ty.toType();
- const ptr_ty = func.typeOf(ty_op.operand);
+ const ptr_ty = cg.typeOf(ty_op.operand);
const ptr_info = ptr_ty.ptrInfo(zcu);
- if (!ty.hasRuntimeBitsIgnoreComptime(zcu)) return func.finishAir(inst, .none, &.{ty_op.operand});
+ if (!ty.hasRuntimeBitsIgnoreComptime(zcu)) return cg.finishAir(inst, .none, &.{ty_op.operand});
const result = result: {
- if (isByRef(ty, pt, func.target)) {
- const new_local = try func.allocStack(ty);
- try func.store(new_local, operand, ty, 0);
+ if (isByRef(ty, pt, cg.target)) {
+ const new_local = try cg.allocStack(ty);
+ try cg.store(new_local, operand, ty, 0);
break :result new_local;
}
if (ptr_info.packed_offset.host_size == 0) {
- break :result try func.load(operand, ty, 0);
+ break :result try cg.load(operand, ty, 0);
}
// at this point we have a non-natural alignment, we must
@@ -2509,45 +2507,45 @@ fn airLoad(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
else if (ptr_info.packed_offset.host_size <= 8)
.{ .imm64 = ptr_info.packed_offset.bit_offset }
else
- return func.fail("TODO: airLoad where ptr to bitfield exceeds 64 bits", .{});
+ return cg.fail("TODO: airLoad where ptr to bitfield exceeds 64 bits", .{});
- const stack_loaded = try func.load(operand, int_elem_ty, 0);
- const shifted = try func.binOp(stack_loaded, shift_val, int_elem_ty, .shr);
- break :result try func.trunc(shifted, ty, int_elem_ty);
+ const stack_loaded = try cg.load(operand, int_elem_ty, 0);
+ const shifted = try cg.binOp(stack_loaded, shift_val, int_elem_ty, .shr);
+ break :result try cg.trunc(shifted, ty, int_elem_ty);
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
/// Loads an operand from the linear memory section.
/// NOTE: Leaves the value on the stack.
-fn load(func: *CodeGen, operand: WValue, ty: Type, offset: u32) InnerError!WValue {
- const pt = func.pt;
+fn load(cg: *CodeGen, operand: WValue, ty: Type, offset: u32) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
// load local's value from memory by its stack position
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
if (ty.zigTypeTag(zcu) == .vector) {
// TODO: Add helper functions for simd opcodes
- const extra_index = @as(u32, @intCast(func.mir_extra.items.len));
+ const extra_index = @as(u32, @intCast(cg.mir_extra.items.len));
// stores as := opcode, offset, alignment (opcode::memarg)
- try func.mir_extra.appendSlice(func.gpa, &[_]u32{
+ try cg.mir_extra.appendSlice(cg.gpa, &[_]u32{
@intFromEnum(std.wasm.SimdOpcode.v128_load),
offset + operand.offset(),
@intCast(ty.abiAlignment(zcu).toByteUnits().?),
});
- try func.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
+ try cg.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
return .stack;
}
const abi_size: u8 = @intCast(ty.abiSize(zcu));
const opcode = buildOpcode(.{
- .valtype1 = typeToValtype(ty, pt, func.target),
+ .valtype1 = typeToValtype(ty, pt, cg.target),
.width = abi_size * 8,
.op = .load,
.signedness = if (ty.isSignedInt(zcu)) .signed else .unsigned,
});
- try func.addMemArg(
+ try cg.addMemArg(
Mir.Inst.Tag.fromOpcode(opcode),
.{
.offset = offset + operand.offset(),
@@ -2558,18 +2556,18 @@ fn load(func: *CodeGen, operand: WValue, ty: Type, offset: u32) InnerError!WValu
return .stack;
}
-fn airArg(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airArg(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const arg_index = func.arg_index;
- const arg = func.args[arg_index];
- const cc = zcu.typeToFunc(zcu.navValue(func.owner_nav).typeOf(zcu)).?.cc;
- const arg_ty = func.typeOfIndex(inst);
+ const arg_index = cg.arg_index;
+ const arg = cg.args[arg_index];
+ const cc = zcu.typeToFunc(zcu.navValue(cg.owner_nav).typeOf(zcu)).?.cc;
+ const arg_ty = cg.typeOfIndex(inst);
if (cc == .wasm_watc) {
const arg_classes = abi.classifyType(arg_ty, zcu);
for (arg_classes) |class| {
if (class != .none) {
- func.arg_index += 1;
+ cg.arg_index += 1;
}
}
@@ -2577,31 +2575,31 @@ fn airArg(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
// we combine them into a single stack value
if (arg_classes[0] == .direct and arg_classes[1] == .direct) {
if (arg_ty.zigTypeTag(zcu) != .int and arg_ty.zigTypeTag(zcu) != .float) {
- return func.fail(
+ return cg.fail(
"TODO: Implement C-ABI argument for type '{}'",
.{arg_ty.fmt(pt)},
);
}
- const result = try func.allocStack(arg_ty);
- try func.store(result, arg, Type.u64, 0);
- try func.store(result, func.args[arg_index + 1], Type.u64, 8);
- return func.finishAir(inst, result, &.{});
+ const result = try cg.allocStack(arg_ty);
+ try cg.store(result, arg, Type.u64, 0);
+ try cg.store(result, cg.args[arg_index + 1], Type.u64, 8);
+ return cg.finishAir(inst, result, &.{});
}
} else {
- func.arg_index += 1;
+ cg.arg_index += 1;
}
- return func.finishAir(inst, arg, &.{});
+ return cg.finishAir(inst, arg, &.{});
}
-fn airBinOp(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
- const pt = func.pt;
+fn airBinOp(cg: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
- const lhs_ty = func.typeOf(bin_op.lhs);
- const rhs_ty = func.typeOf(bin_op.rhs);
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
+ const lhs_ty = cg.typeOf(bin_op.lhs);
+ const rhs_ty = cg.typeOf(bin_op.rhs);
// For certain operations, such as shifting, the types are different.
// When converting this to a WebAssembly type, they *must* match to perform
@@ -2611,38 +2609,38 @@ fn airBinOp(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
const result = switch (op) {
.shr, .shl => result: {
const lhs_wasm_bits = toWasmBits(@intCast(lhs_ty.bitSize(zcu))) orelse {
- return func.fail("TODO: implement '{s}' for types larger than 128 bits", .{@tagName(op)});
+ return cg.fail("TODO: implement '{s}' for types larger than 128 bits", .{@tagName(op)});
};
const rhs_wasm_bits = toWasmBits(@intCast(rhs_ty.bitSize(zcu))).?;
const new_rhs = if (lhs_wasm_bits != rhs_wasm_bits and lhs_wasm_bits != 128)
- try (try func.intcast(rhs, rhs_ty, lhs_ty)).toLocal(func, lhs_ty)
+ try (try cg.intcast(rhs, rhs_ty, lhs_ty)).toLocal(cg, lhs_ty)
else
rhs;
- break :result try func.binOp(lhs, new_rhs, lhs_ty, op);
+ break :result try cg.binOp(lhs, new_rhs, lhs_ty, op);
},
- else => try func.binOp(lhs, rhs, lhs_ty, op),
+ else => try cg.binOp(lhs, rhs, lhs_ty, op),
};
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
/// Performs a binary operation on the given `WValue`'s
/// NOTE: THis leaves the value on top of the stack.
-fn binOp(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
- const pt = func.pt;
+fn binOp(cg: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
assert(!(lhs != .stack and rhs == .stack));
if (ty.isAnyFloat()) {
const float_op = FloatOp.fromOp(op);
- return func.floatOp(float_op, ty, &.{ lhs, rhs });
+ return cg.floatOp(float_op, ty, &.{ lhs, rhs });
}
- if (isByRef(ty, pt, func.target)) {
+ if (isByRef(ty, pt, cg.target)) {
if (ty.zigTypeTag(zcu) == .int) {
- return func.binOpBigInt(lhs, rhs, ty, op);
+ return cg.binOpBigInt(lhs, rhs, ty, op);
} else {
- return func.fail(
+ return cg.fail(
"TODO: Implement binary operation for type: {}",
.{ty.fmt(pt)},
);
@@ -2651,82 +2649,82 @@ fn binOp(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!
const opcode: std.wasm.Opcode = buildOpcode(.{
.op = op,
- .valtype1 = typeToValtype(ty, pt, func.target),
+ .valtype1 = typeToValtype(ty, pt, cg.target),
.signedness = if (ty.isSignedInt(zcu)) .signed else .unsigned,
});
- try func.emitWValue(lhs);
- try func.emitWValue(rhs);
+ try cg.emitWValue(lhs);
+ try cg.emitWValue(rhs);
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
}
-fn binOpBigInt(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
- const pt = func.pt;
+fn binOpBigInt(cg: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
const int_info = ty.intInfo(zcu);
if (int_info.bits > 128) {
- return func.fail("TODO: Implement binary operation for big integers larger than 128 bits", .{});
+ return cg.fail("TODO: Implement binary operation for big integers larger than 128 bits", .{});
}
switch (op) {
- .mul => return func.callIntrinsic("__multi3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
+ .mul => return cg.callIntrinsic("__multi3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
.div => switch (int_info.signedness) {
- .signed => return func.callIntrinsic("__divti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
- .unsigned => return func.callIntrinsic("__udivti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
+ .signed => return cg.callIntrinsic("__divti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
+ .unsigned => return cg.callIntrinsic("__udivti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
},
.rem => switch (int_info.signedness) {
- .signed => return func.callIntrinsic("__modti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
- .unsigned => return func.callIntrinsic("__umodti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
+ .signed => return cg.callIntrinsic("__modti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
+ .unsigned => return cg.callIntrinsic("__umodti3", &.{ ty.toIntern(), ty.toIntern() }, ty, &.{ lhs, rhs }),
},
.shr => switch (int_info.signedness) {
- .signed => return func.callIntrinsic("__ashrti3", &.{ ty.toIntern(), .i32_type }, ty, &.{ lhs, rhs }),
- .unsigned => return func.callIntrinsic("__lshrti3", &.{ ty.toIntern(), .i32_type }, ty, &.{ lhs, rhs }),
+ .signed => return cg.callIntrinsic("__ashrti3", &.{ ty.toIntern(), .i32_type }, ty, &.{ lhs, rhs }),
+ .unsigned => return cg.callIntrinsic("__lshrti3", &.{ ty.toIntern(), .i32_type }, ty, &.{ lhs, rhs }),
},
- .shl => return func.callIntrinsic("__ashlti3", &.{ ty.toIntern(), .i32_type }, ty, &.{ lhs, rhs }),
+ .shl => return cg.callIntrinsic("__ashlti3", &.{ ty.toIntern(), .i32_type }, ty, &.{ lhs, rhs }),
.@"and", .@"or", .xor => {
- const result = try func.allocStack(ty);
- try func.emitWValue(result);
- const lhs_lsb = try func.load(lhs, Type.u64, 0);
- const rhs_lsb = try func.load(rhs, Type.u64, 0);
- const op_lsb = try func.binOp(lhs_lsb, rhs_lsb, Type.u64, op);
- try func.store(.stack, op_lsb, Type.u64, result.offset());
-
- try func.emitWValue(result);
- const lhs_msb = try func.load(lhs, Type.u64, 8);
- const rhs_msb = try func.load(rhs, Type.u64, 8);
- const op_msb = try func.binOp(lhs_msb, rhs_msb, Type.u64, op);
- try func.store(.stack, op_msb, Type.u64, result.offset() + 8);
+ const result = try cg.allocStack(ty);
+ try cg.emitWValue(result);
+ const lhs_lsb = try cg.load(lhs, Type.u64, 0);
+ const rhs_lsb = try cg.load(rhs, Type.u64, 0);
+ const op_lsb = try cg.binOp(lhs_lsb, rhs_lsb, Type.u64, op);
+ try cg.store(.stack, op_lsb, Type.u64, result.offset());
+
+ try cg.emitWValue(result);
+ const lhs_msb = try cg.load(lhs, Type.u64, 8);
+ const rhs_msb = try cg.load(rhs, Type.u64, 8);
+ const op_msb = try cg.binOp(lhs_msb, rhs_msb, Type.u64, op);
+ try cg.store(.stack, op_msb, Type.u64, result.offset() + 8);
return result;
},
.add, .sub => {
- const result = try func.allocStack(ty);
- var lhs_lsb = try (try func.load(lhs, Type.u64, 0)).toLocal(func, Type.u64);
- defer lhs_lsb.free(func);
- var rhs_lsb = try (try func.load(rhs, Type.u64, 0)).toLocal(func, Type.u64);
- defer rhs_lsb.free(func);
- var op_lsb = try (try func.binOp(lhs_lsb, rhs_lsb, Type.u64, op)).toLocal(func, Type.u64);
- defer op_lsb.free(func);
-
- const lhs_msb = try func.load(lhs, Type.u64, 8);
- const rhs_msb = try func.load(rhs, Type.u64, 8);
- const op_msb = try func.binOp(lhs_msb, rhs_msb, Type.u64, op);
+ const result = try cg.allocStack(ty);
+ var lhs_lsb = try (try cg.load(lhs, Type.u64, 0)).toLocal(cg, Type.u64);
+ defer lhs_lsb.free(cg);
+ var rhs_lsb = try (try cg.load(rhs, Type.u64, 0)).toLocal(cg, Type.u64);
+ defer rhs_lsb.free(cg);
+ var op_lsb = try (try cg.binOp(lhs_lsb, rhs_lsb, Type.u64, op)).toLocal(cg, Type.u64);
+ defer op_lsb.free(cg);
+
+ const lhs_msb = try cg.load(lhs, Type.u64, 8);
+ const rhs_msb = try cg.load(rhs, Type.u64, 8);
+ const op_msb = try cg.binOp(lhs_msb, rhs_msb, Type.u64, op);
const lt = if (op == .add) blk: {
- break :blk try func.cmp(op_lsb, rhs_lsb, Type.u64, .lt);
+ break :blk try cg.cmp(op_lsb, rhs_lsb, Type.u64, .lt);
} else if (op == .sub) blk: {
- break :blk try func.cmp(lhs_lsb, rhs_lsb, Type.u64, .lt);
+ break :blk try cg.cmp(lhs_lsb, rhs_lsb, Type.u64, .lt);
} else unreachable;
- const tmp = try func.intcast(lt, Type.u32, Type.u64);
- var tmp_op = try (try func.binOp(op_msb, tmp, Type.u64, op)).toLocal(func, Type.u64);
- defer tmp_op.free(func);
+ const tmp = try cg.intcast(lt, Type.u32, Type.u64);
+ var tmp_op = try (try cg.binOp(op_msb, tmp, Type.u64, op)).toLocal(cg, Type.u64);
+ defer tmp_op.free(cg);
- try func.store(result, op_lsb, Type.u64, 0);
- try func.store(result, tmp_op, Type.u64, 8);
+ try cg.store(result, op_lsb, Type.u64, 0);
+ try cg.store(result, tmp_op, Type.u64, 8);
return result;
},
- else => return func.fail("TODO: Implement binary operation for big integers: '{s}'", .{@tagName(op)}),
+ else => return cg.fail("TODO: Implement binary operation for big integers: '{s}'", .{@tagName(op)}),
}
}
@@ -2806,117 +2804,117 @@ const FloatOp = enum {
}
};
-fn airAbs(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airAbs(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const ty = func.typeOf(ty_op.operand);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const operand = try cg.resolveInst(ty_op.operand);
+ const ty = cg.typeOf(ty_op.operand);
const scalar_ty = ty.scalarType(zcu);
switch (scalar_ty.zigTypeTag(zcu)) {
.int => if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO implement airAbs for {}", .{ty.fmt(pt)});
+ return cg.fail("TODO implement airAbs for {}", .{ty.fmt(pt)});
} else {
const int_bits = ty.intInfo(zcu).bits;
const wasm_bits = toWasmBits(int_bits) orelse {
- return func.fail("TODO: airAbs for signed integers larger than '{d}' bits", .{int_bits});
+ return cg.fail("TODO: airAbs for signed integers larger than '{d}' bits", .{int_bits});
};
switch (wasm_bits) {
32 => {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
- try func.addImm32(31);
- try func.addTag(.i32_shr_s);
+ try cg.addImm32(31);
+ try cg.addTag(.i32_shr_s);
- var tmp = try func.allocLocal(ty);
- defer tmp.free(func);
- try func.addLabel(.local_tee, tmp.local.value);
+ var tmp = try cg.allocLocal(ty);
+ defer tmp.free(cg);
+ try cg.addLabel(.local_tee, tmp.local.value);
- try func.emitWValue(operand);
- try func.addTag(.i32_xor);
- try func.emitWValue(tmp);
- try func.addTag(.i32_sub);
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ try cg.emitWValue(operand);
+ try cg.addTag(.i32_xor);
+ try cg.emitWValue(tmp);
+ try cg.addTag(.i32_sub);
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
},
64 => {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
- try func.addImm64(63);
- try func.addTag(.i64_shr_s);
+ try cg.addImm64(63);
+ try cg.addTag(.i64_shr_s);
- var tmp = try func.allocLocal(ty);
- defer tmp.free(func);
- try func.addLabel(.local_tee, tmp.local.value);
+ var tmp = try cg.allocLocal(ty);
+ defer tmp.free(cg);
+ try cg.addLabel(.local_tee, tmp.local.value);
- try func.emitWValue(operand);
- try func.addTag(.i64_xor);
- try func.emitWValue(tmp);
- try func.addTag(.i64_sub);
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ try cg.emitWValue(operand);
+ try cg.addTag(.i64_xor);
+ try cg.emitWValue(tmp);
+ try cg.addTag(.i64_sub);
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
},
128 => {
- const mask = try func.allocStack(Type.u128);
- try func.emitWValue(mask);
- try func.emitWValue(mask);
+ const mask = try cg.allocStack(Type.u128);
+ try cg.emitWValue(mask);
+ try cg.emitWValue(mask);
- _ = try func.load(operand, Type.u64, 8);
- try func.addImm64(63);
- try func.addTag(.i64_shr_s);
+ _ = try cg.load(operand, Type.u64, 8);
+ try cg.addImm64(63);
+ try cg.addTag(.i64_shr_s);
- var tmp = try func.allocLocal(Type.u64);
- defer tmp.free(func);
- try func.addLabel(.local_tee, tmp.local.value);
- try func.store(.stack, .stack, Type.u64, mask.offset() + 0);
- try func.emitWValue(tmp);
- try func.store(.stack, .stack, Type.u64, mask.offset() + 8);
+ var tmp = try cg.allocLocal(Type.u64);
+ defer tmp.free(cg);
+ try cg.addLabel(.local_tee, tmp.local.value);
+ try cg.store(.stack, .stack, Type.u64, mask.offset() + 0);
+ try cg.emitWValue(tmp);
+ try cg.store(.stack, .stack, Type.u64, mask.offset() + 8);
- const a = try func.binOpBigInt(operand, mask, Type.u128, .xor);
- const b = try func.binOpBigInt(a, mask, Type.u128, .sub);
+ const a = try cg.binOpBigInt(operand, mask, Type.u128, .xor);
+ const b = try cg.binOpBigInt(a, mask, Type.u128, .sub);
- return func.finishAir(inst, b, &.{ty_op.operand});
+ return cg.finishAir(inst, b, &.{ty_op.operand});
},
else => unreachable,
}
},
.float => {
- const result = try func.floatOp(.fabs, ty, &.{operand});
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const result = try cg.floatOp(.fabs, ty, &.{operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
},
else => unreachable,
}
}
-fn airUnaryFloatOp(func: *CodeGen, inst: Air.Inst.Index, op: FloatOp) InnerError!void {
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
- const ty = func.typeOf(un_op);
+fn airUnaryFloatOp(cg: *CodeGen, inst: Air.Inst.Index, op: FloatOp) InnerError!void {
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
+ const ty = cg.typeOf(un_op);
- const result = try func.floatOp(op, ty, &.{operand});
- return func.finishAir(inst, result, &.{un_op});
+ const result = try cg.floatOp(op, ty, &.{operand});
+ return cg.finishAir(inst, result, &.{un_op});
}
-fn floatOp(func: *CodeGen, float_op: FloatOp, ty: Type, args: []const WValue) InnerError!WValue {
- const pt = func.pt;
+fn floatOp(cg: *CodeGen, float_op: FloatOp, ty: Type, args: []const WValue) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: Implement floatOps for vectors", .{});
+ return cg.fail("TODO: Implement floatOps for vectors", .{});
}
- const float_bits = ty.floatBits(func.target.*);
+ const float_bits = ty.floatBits(cg.target.*);
if (float_op == .neg) {
- return func.floatNeg(ty, args[0]);
+ return cg.floatNeg(ty, args[0]);
}
if (float_bits == 32 or float_bits == 64) {
if (float_op.toOp()) |op| {
for (args) |operand| {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
}
- const opcode = buildOpcode(.{ .op = op, .valtype1 = typeToValtype(ty, pt, func.target) });
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ const opcode = buildOpcode(.{ .op = op, .valtype1 = typeToValtype(ty, pt, cg.target) });
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
}
}
@@ -2958,45 +2956,45 @@ fn floatOp(func: *CodeGen, float_op: FloatOp, ty: Type, args: []const WValue) In
// fma requires three operands
var param_types_buffer: [3]InternPool.Index = .{ ty.ip_index, ty.ip_index, ty.ip_index };
const param_types = param_types_buffer[0..args.len];
- return func.callIntrinsic(fn_name, param_types, ty, args);
+ return cg.callIntrinsic(fn_name, param_types, ty, args);
}
/// NOTE: The result value remains on top of the stack.
-fn floatNeg(func: *CodeGen, ty: Type, arg: WValue) InnerError!WValue {
- const float_bits = ty.floatBits(func.target.*);
+fn floatNeg(cg: *CodeGen, ty: Type, arg: WValue) InnerError!WValue {
+ const float_bits = ty.floatBits(cg.target.*);
switch (float_bits) {
16 => {
- try func.emitWValue(arg);
- try func.addImm32(0x8000);
- try func.addTag(.i32_xor);
+ try cg.emitWValue(arg);
+ try cg.addImm32(0x8000);
+ try cg.addTag(.i32_xor);
return .stack;
},
32, 64 => {
- try func.emitWValue(arg);
+ try cg.emitWValue(arg);
const val_type: std.wasm.Valtype = if (float_bits == 32) .f32 else .f64;
const opcode = buildOpcode(.{ .op = .neg, .valtype1 = val_type });
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
},
80, 128 => {
- const result = try func.allocStack(ty);
- try func.emitWValue(result);
- try func.emitWValue(arg);
- try func.addMemArg(.i64_load, .{ .offset = 0 + arg.offset(), .alignment = 2 });
- try func.addMemArg(.i64_store, .{ .offset = 0 + result.offset(), .alignment = 2 });
+ const result = try cg.allocStack(ty);
+ try cg.emitWValue(result);
+ try cg.emitWValue(arg);
+ try cg.addMemArg(.i64_load, .{ .offset = 0 + arg.offset(), .alignment = 2 });
+ try cg.addMemArg(.i64_store, .{ .offset = 0 + result.offset(), .alignment = 2 });
- try func.emitWValue(result);
- try func.emitWValue(arg);
- try func.addMemArg(.i64_load, .{ .offset = 8 + arg.offset(), .alignment = 2 });
+ try cg.emitWValue(result);
+ try cg.emitWValue(arg);
+ try cg.addMemArg(.i64_load, .{ .offset = 8 + arg.offset(), .alignment = 2 });
if (float_bits == 80) {
- try func.addImm64(0x8000);
- try func.addTag(.i64_xor);
- try func.addMemArg(.i64_store16, .{ .offset = 8 + result.offset(), .alignment = 2 });
+ try cg.addImm64(0x8000);
+ try cg.addTag(.i64_xor);
+ try cg.addMemArg(.i64_store16, .{ .offset = 8 + result.offset(), .alignment = 2 });
} else {
- try func.addImm64(0x8000000000000000);
- try func.addTag(.i64_xor);
- try func.addMemArg(.i64_store, .{ .offset = 8 + result.offset(), .alignment = 2 });
+ try cg.addImm64(0x8000000000000000);
+ try cg.addTag(.i64_xor);
+ try cg.addMemArg(.i64_store, .{ .offset = 8 + result.offset(), .alignment = 2 });
}
return result;
},
@@ -3004,18 +3002,18 @@ fn floatNeg(func: *CodeGen, ty: Type, arg: WValue) InnerError!WValue {
}
}
-fn airWrapBinOp(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
- const pt = func.pt;
+fn airWrapBinOp(cg: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
- const lhs_ty = func.typeOf(bin_op.lhs);
- const rhs_ty = func.typeOf(bin_op.rhs);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
+ const lhs_ty = cg.typeOf(bin_op.lhs);
+ const rhs_ty = cg.typeOf(bin_op.rhs);
if (lhs_ty.zigTypeTag(zcu) == .vector or rhs_ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: Implement wrapping arithmetic for vectors", .{});
+ return cg.fail("TODO: Implement wrapping arithmetic for vectors", .{});
}
// For certain operations, such as shifting, the types are different.
@@ -3026,90 +3024,90 @@ fn airWrapBinOp(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
const result = switch (op) {
.shr, .shl => result: {
const lhs_wasm_bits = toWasmBits(@intCast(lhs_ty.bitSize(zcu))) orelse {
- return func.fail("TODO: implement '{s}' for types larger than 128 bits", .{@tagName(op)});
+ return cg.fail("TODO: implement '{s}' for types larger than 128 bits", .{@tagName(op)});
};
const rhs_wasm_bits = toWasmBits(@intCast(rhs_ty.bitSize(zcu))).?;
const new_rhs = if (lhs_wasm_bits != rhs_wasm_bits and lhs_wasm_bits != 128)
- try (try func.intcast(rhs, rhs_ty, lhs_ty)).toLocal(func, lhs_ty)
+ try (try cg.intcast(rhs, rhs_ty, lhs_ty)).toLocal(cg, lhs_ty)
else
rhs;
- break :result try func.wrapBinOp(lhs, new_rhs, lhs_ty, op);
+ break :result try cg.wrapBinOp(lhs, new_rhs, lhs_ty, op);
},
- else => try func.wrapBinOp(lhs, rhs, lhs_ty, op),
+ else => try cg.wrapBinOp(lhs, rhs, lhs_ty, op),
};
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
/// Performs a wrapping binary operation.
/// Asserts rhs is not a stack value when lhs also isn't.
/// NOTE: Leaves the result on the stack when its Type is <= 64 bits
-fn wrapBinOp(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
- const bin_local = try func.binOp(lhs, rhs, ty, op);
- return func.wrapOperand(bin_local, ty);
+fn wrapBinOp(cg: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
+ const bin_local = try cg.binOp(lhs, rhs, ty, op);
+ return cg.wrapOperand(bin_local, ty);
}
/// Wraps an operand based on a given type's bitsize.
/// Asserts `Type` is <= 128 bits.
/// NOTE: When the Type is <= 64 bits, leaves the value on top of the stack, if wrapping was needed.
-fn wrapOperand(func: *CodeGen, operand: WValue, ty: Type) InnerError!WValue {
- const pt = func.pt;
+fn wrapOperand(cg: *CodeGen, operand: WValue, ty: Type) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
assert(ty.abiSize(zcu) <= 16);
const int_bits: u16 = @intCast(ty.bitSize(zcu)); // TODO use ty.intInfo(zcu).bits
const wasm_bits = toWasmBits(int_bits) orelse {
- return func.fail("TODO: Implement wrapOperand for bitsize '{d}'", .{int_bits});
+ return cg.fail("TODO: Implement wrapOperand for bitsize '{d}'", .{int_bits});
};
if (wasm_bits == int_bits) return operand;
switch (wasm_bits) {
32 => {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
if (ty.isSignedInt(zcu)) {
- try func.addImm32(32 - int_bits);
- try func.addTag(.i32_shl);
- try func.addImm32(32 - int_bits);
- try func.addTag(.i32_shr_s);
+ try cg.addImm32(32 - int_bits);
+ try cg.addTag(.i32_shl);
+ try cg.addImm32(32 - int_bits);
+ try cg.addTag(.i32_shr_s);
} else {
- try func.addImm32(~@as(u32, 0) >> @intCast(32 - int_bits));
- try func.addTag(.i32_and);
+ try cg.addImm32(~@as(u32, 0) >> @intCast(32 - int_bits));
+ try cg.addTag(.i32_and);
}
return .stack;
},
64 => {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
if (ty.isSignedInt(zcu)) {
- try func.addImm64(64 - int_bits);
- try func.addTag(.i64_shl);
- try func.addImm64(64 - int_bits);
- try func.addTag(.i64_shr_s);
+ try cg.addImm64(64 - int_bits);
+ try cg.addTag(.i64_shl);
+ try cg.addImm64(64 - int_bits);
+ try cg.addTag(.i64_shr_s);
} else {
- try func.addImm64(~@as(u64, 0) >> @intCast(64 - int_bits));
- try func.addTag(.i64_and);
+ try cg.addImm64(~@as(u64, 0) >> @intCast(64 - int_bits));
+ try cg.addTag(.i64_and);
}
return .stack;
},
128 => {
assert(operand != .stack);
- const result = try func.allocStack(ty);
+ const result = try cg.allocStack(ty);
- try func.emitWValue(result);
- _ = try func.load(operand, Type.u64, 0);
- try func.store(.stack, .stack, Type.u64, result.offset());
+ try cg.emitWValue(result);
+ _ = try cg.load(operand, Type.u64, 0);
+ try cg.store(.stack, .stack, Type.u64, result.offset());
- try func.emitWValue(result);
- _ = try func.load(operand, Type.u64, 8);
+ try cg.emitWValue(result);
+ _ = try cg.load(operand, Type.u64, 8);
if (ty.isSignedInt(zcu)) {
- try func.addImm64(128 - int_bits);
- try func.addTag(.i64_shl);
- try func.addImm64(128 - int_bits);
- try func.addTag(.i64_shr_s);
+ try cg.addImm64(128 - int_bits);
+ try cg.addTag(.i64_shl);
+ try cg.addImm64(128 - int_bits);
+ try cg.addTag(.i64_shr_s);
} else {
- try func.addImm64(~@as(u64, 0) >> @intCast(128 - int_bits));
- try func.addTag(.i64_and);
+ try cg.addImm64(~@as(u64, 0) >> @intCast(128 - int_bits));
+ try cg.addTag(.i64_and);
}
- try func.store(.stack, .stack, Type.u64, result.offset() + 8);
+ try cg.store(.stack, .stack, Type.u64, result.offset() + 8);
return result;
},
@@ -3117,17 +3115,17 @@ fn wrapOperand(func: *CodeGen, operand: WValue, ty: Type) InnerError!WValue {
}
}
-fn lowerPtr(func: *CodeGen, ptr_val: InternPool.Index, prev_offset: u64) InnerError!WValue {
- const pt = func.pt;
+fn lowerPtr(cg: *CodeGen, ptr_val: InternPool.Index, prev_offset: u64) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ptr = zcu.intern_pool.indexToKey(ptr_val).ptr;
const offset: u64 = prev_offset + ptr.byte_offset;
return switch (ptr.base_addr) {
.nav => |nav| return .{ .nav_ref = .{ .nav_index = zcu.chaseNav(nav), .offset = @intCast(offset) } },
.uav => |uav| return .{ .uav_ref = .{ .ip_index = uav.val, .offset = @intCast(offset) } },
- .int => return func.lowerConstant(try pt.intValue(Type.usize, offset), Type.usize),
- .eu_payload => return func.fail("Wasm TODO: lower error union payload pointer", .{}),
- .opt_payload => |opt_ptr| return func.lowerPtr(opt_ptr, offset),
+ .int => return cg.lowerConstant(try pt.intValue(Type.usize, offset), Type.usize),
+ .eu_payload => return cg.fail("Wasm TODO: lower error union payload pointer", .{}),
+ .opt_payload => |opt_ptr| return cg.lowerPtr(opt_ptr, offset),
.field => |field| {
const base_ptr = Value.fromInterned(field.base);
const base_ty = base_ptr.typeOf(zcu).childType(zcu);
@@ -3136,7 +3134,7 @@ fn lowerPtr(func: *CodeGen, ptr_val: InternPool.Index, prev_offset: u64) InnerEr
assert(base_ty.isSlice(zcu));
break :off switch (field.index) {
Value.slice_ptr_index => 0,
- Value.slice_len_index => @divExact(func.target.ptrBitWidth(), 8),
+ Value.slice_len_index => @divExact(cg.target.ptrBitWidth(), 8),
else => unreachable,
};
},
@@ -3162,19 +3160,19 @@ fn lowerPtr(func: *CodeGen, ptr_val: InternPool.Index, prev_offset: u64) InnerEr
},
else => unreachable,
};
- return func.lowerPtr(field.base, offset + field_off);
+ return cg.lowerPtr(field.base, offset + field_off);
},
.arr_elem, .comptime_field, .comptime_alloc => unreachable,
};
}
/// Asserts that `isByRef` returns `false` for `ty`.
-fn lowerConstant(func: *CodeGen, val: Value, ty: Type) InnerError!WValue {
- const pt = func.pt;
+fn lowerConstant(cg: *CodeGen, val: Value, ty: Type) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
- assert(!isByRef(ty, pt, func.target));
+ assert(!isByRef(ty, pt, cg.target));
const ip = &zcu.intern_pool;
- if (val.isUndefDeep(zcu)) return func.emitUndefined(ty);
+ if (val.isUndefDeep(zcu)) return cg.emitUndefined(ty);
switch (ip.indexToKey(val.ip_index)) {
.int_type,
@@ -3253,14 +3251,14 @@ fn lowerConstant(func: *CodeGen, val: Value, ty: Type) InnerError!WValue {
const payload_type = ty.errorUnionPayload(zcu);
if (!payload_type.hasRuntimeBitsIgnoreComptime(zcu)) {
// We use the error type directly as the type.
- return func.lowerConstant(err_val, err_ty);
+ return cg.lowerConstant(err_val, err_ty);
}
- return func.fail("Wasm TODO: lowerConstant error union with non-zero-bit payload type", .{});
+ return cg.fail("Wasm TODO: lowerConstant error union with non-zero-bit payload type", .{});
},
.enum_tag => |enum_tag| {
const int_tag_ty = ip.typeOf(enum_tag.int);
- return func.lowerConstant(Value.fromInterned(enum_tag.int), Type.fromInterned(int_tag_ty));
+ return cg.lowerConstant(Value.fromInterned(enum_tag.int), Type.fromInterned(int_tag_ty));
},
.float => |float| switch (float.storage) {
.f16 => |f16_val| return .{ .imm32 = @as(u16, @bitCast(f16_val)) },
@@ -3269,11 +3267,11 @@ fn lowerConstant(func: *CodeGen, val: Value, ty: Type) InnerError!WValue {
else => unreachable,
},
.slice => unreachable, // isByRef == true
- .ptr => return func.lowerPtr(val.toIntern(), 0),
+ .ptr => return cg.lowerPtr(val.toIntern(), 0),
.opt => if (ty.optionalReprIsPayload(zcu)) {
const pl_ty = ty.optionalChild(zcu);
if (val.optionalValue(zcu)) |payload| {
- return func.lowerConstant(payload, pl_ty);
+ return cg.lowerConstant(payload, pl_ty);
} else {
return .{ .imm32 = 0 };
}
@@ -3281,12 +3279,12 @@ fn lowerConstant(func: *CodeGen, val: Value, ty: Type) InnerError!WValue {
return .{ .imm32 = @intFromBool(!val.isNull(zcu)) };
},
.aggregate => switch (ip.indexToKey(ty.ip_index)) {
- .array_type => return func.fail("Wasm TODO: LowerConstant for {}", .{ty.fmt(pt)}),
+ .array_type => return cg.fail("Wasm TODO: LowerConstant for {}", .{ty.fmt(pt)}),
.vector_type => {
- assert(determineSimdStoreStrategy(ty, zcu, func.target) == .direct);
+ assert(determineSimdStoreStrategy(ty, zcu, cg.target) == .direct);
var buf: [16]u8 = undefined;
val.writeToMemory(pt, &buf) catch unreachable;
- return func.storeSimdImmd(buf);
+ return cg.storeSimdImmd(buf);
},
.struct_type => {
const struct_type = ip.loadStructType(ty.toIntern());
@@ -3300,7 +3298,7 @@ fn lowerConstant(func: *CodeGen, val: Value, ty: Type) InnerError!WValue {
backing_int_ty,
mem.readInt(u64, &buf, .little),
);
- return func.lowerConstant(int_val, backing_int_ty);
+ return cg.lowerConstant(int_val, backing_int_ty);
},
else => unreachable,
},
@@ -3313,7 +3311,7 @@ fn lowerConstant(func: *CodeGen, val: Value, ty: Type) InnerError!WValue {
const field_index = zcu.unionTagFieldIndex(union_obj, Value.fromInterned(un.tag)).?;
break :field_ty Type.fromInterned(union_obj.field_types.get(ip)[field_index]);
};
- return func.lowerConstant(Value.fromInterned(un.val), constant_ty);
+ return cg.lowerConstant(Value.fromInterned(un.val), constant_ty);
},
.memoized_call => unreachable,
}
@@ -3321,14 +3319,14 @@ fn lowerConstant(func: *CodeGen, val: Value, ty: Type) InnerError!WValue {
/// Stores the value as a 128bit-immediate value by storing it inside
/// the list and returning the index into this list as `WValue`.
-fn storeSimdImmd(func: *CodeGen, value: [16]u8) !WValue {
- const index = @as(u32, @intCast(func.simd_immediates.items.len));
- try func.simd_immediates.append(func.gpa, value);
+fn storeSimdImmd(cg: *CodeGen, value: [16]u8) !WValue {
+ const index = @as(u32, @intCast(cg.simd_immediates.items.len));
+ try cg.simd_immediates.append(cg.gpa, value);
return .{ .imm128 = index };
}
-fn emitUndefined(func: *CodeGen, ty: Type) InnerError!WValue {
- const pt = func.pt;
+fn emitUndefined(cg: *CodeGen, ty: Type) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
switch (ty.zigTypeTag(zcu)) {
@@ -3338,20 +3336,20 @@ fn emitUndefined(func: *CodeGen, ty: Type) InnerError!WValue {
33...64 => return .{ .imm64 = 0xaaaaaaaaaaaaaaaa },
else => unreachable,
},
- .float => switch (ty.floatBits(func.target.*)) {
+ .float => switch (ty.floatBits(cg.target.*)) {
16 => return .{ .imm32 = 0xaaaaaaaa },
32 => return .{ .float32 = @as(f32, @bitCast(@as(u32, 0xaaaaaaaa))) },
64 => return .{ .float64 = @as(f64, @bitCast(@as(u64, 0xaaaaaaaaaaaaaaaa))) },
else => unreachable,
},
- .pointer => switch (func.ptr_size) {
+ .pointer => switch (cg.ptr_size) {
.wasm32 => return .{ .imm32 = 0xaaaaaaaa },
.wasm64 => return .{ .imm64 = 0xaaaaaaaaaaaaaaaa },
},
.optional => {
const pl_ty = ty.optionalChild(zcu);
if (ty.optionalReprIsPayload(zcu)) {
- return func.emitUndefined(pl_ty);
+ return cg.emitUndefined(pl_ty);
}
return .{ .imm32 = 0xaaaaaaaa };
},
@@ -3360,17 +3358,17 @@ fn emitUndefined(func: *CodeGen, ty: Type) InnerError!WValue {
},
.@"struct" => {
const packed_struct = zcu.typeToPackedStruct(ty).?;
- return func.emitUndefined(Type.fromInterned(packed_struct.backingIntTypeUnordered(ip)));
+ return cg.emitUndefined(Type.fromInterned(packed_struct.backingIntTypeUnordered(ip)));
},
- else => return func.fail("Wasm TODO: emitUndefined for type: {}\n", .{ty.zigTypeTag(zcu)}),
+ else => return cg.fail("Wasm TODO: emitUndefined for type: {}\n", .{ty.zigTypeTag(zcu)}),
}
}
/// Returns a `Value` as a signed 32 bit value.
/// It's illegal to provide a value with a type that cannot be represented
/// as an integer value.
-fn valueAsI32(func: *const CodeGen, val: Value) i32 {
- const pt = func.pt;
+fn valueAsI32(cg: *const CodeGen, val: Value) i32 {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
@@ -3405,132 +3403,132 @@ fn intStorageAsI32(storage: InternPool.Key.Int.Storage, pt: Zcu.PerThread) i32 {
};
}
-fn airBlock(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.Block, ty_pl.payload);
- try func.lowerBlock(inst, ty_pl.ty.toType(), @ptrCast(func.air.extra[extra.end..][0..extra.data.body_len]));
+fn airBlock(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.Block, ty_pl.payload);
+ try cg.lowerBlock(inst, ty_pl.ty.toType(), @ptrCast(cg.air.extra[extra.end..][0..extra.data.body_len]));
}
-fn lowerBlock(func: *CodeGen, inst: Air.Inst.Index, block_ty: Type, body: []const Air.Inst.Index) InnerError!void {
- const pt = func.pt;
- const wasm_block_ty = genBlockType(block_ty, pt, func.target);
+fn lowerBlock(cg: *CodeGen, inst: Air.Inst.Index, block_ty: Type, body: []const Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
+ const wasm_block_ty = genBlockType(block_ty, pt, cg.target);
// if wasm_block_ty is non-empty, we create a register to store the temporary value
const block_result: WValue = if (wasm_block_ty != std.wasm.block_empty) blk: {
- const ty: Type = if (isByRef(block_ty, pt, func.target)) Type.u32 else block_ty;
- break :blk try func.ensureAllocLocal(ty); // make sure it's a clean local as it may never get overwritten
+ const ty: Type = if (isByRef(block_ty, pt, cg.target)) Type.u32 else block_ty;
+ break :blk try cg.ensureAllocLocal(ty); // make sure it's a clean local as it may never get overwritten
} else .none;
- try func.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
// Here we set the current block idx, so breaks know the depth to jump
// to when breaking out.
- try func.blocks.putNoClobber(func.gpa, inst, .{
- .label = func.block_depth,
+ try cg.blocks.putNoClobber(cg.gpa, inst, .{
+ .label = cg.block_depth,
.value = block_result,
});
- try func.genBody(body);
- try func.endBlock();
+ try cg.genBody(body);
+ try cg.endBlock();
- const liveness = func.liveness.getBlock(inst);
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, liveness.deaths.len);
+ const liveness = cg.liveness.getBlock(inst);
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, liveness.deaths.len);
- return func.finishAir(inst, block_result, &.{});
+ return cg.finishAir(inst, block_result, &.{});
}
/// appends a new wasm block to the code section and increases the `block_depth` by 1
-fn startBlock(func: *CodeGen, block_tag: std.wasm.Opcode, valtype: u8) !void {
- func.block_depth += 1;
- try func.addInst(.{
+fn startBlock(cg: *CodeGen, block_tag: std.wasm.Opcode, valtype: u8) !void {
+ cg.block_depth += 1;
+ try cg.addInst(.{
.tag = Mir.Inst.Tag.fromOpcode(block_tag),
.data = .{ .block_type = valtype },
});
}
/// Ends the current wasm block and decreases the `block_depth` by 1
-fn endBlock(func: *CodeGen) !void {
- try func.addTag(.end);
- func.block_depth -= 1;
+fn endBlock(cg: *CodeGen) !void {
+ try cg.addTag(.end);
+ cg.block_depth -= 1;
}
-fn airLoop(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const loop = func.air.extraData(Air.Block, ty_pl.payload);
- const body: []const Air.Inst.Index = @ptrCast(func.air.extra[loop.end..][0..loop.data.body_len]);
+fn airLoop(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const loop = cg.air.extraData(Air.Block, ty_pl.payload);
+ const body: []const Air.Inst.Index = @ptrCast(cg.air.extra[loop.end..][0..loop.data.body_len]);
// result type of loop is always 'noreturn', meaning we can always
// emit the wasm type 'block_empty'.
- try func.startBlock(.loop, std.wasm.block_empty);
+ try cg.startBlock(.loop, std.wasm.block_empty);
- try func.loops.putNoClobber(func.gpa, inst, func.block_depth);
- defer assert(func.loops.remove(inst));
+ try cg.loops.putNoClobber(cg.gpa, inst, cg.block_depth);
+ defer assert(cg.loops.remove(inst));
- try func.genBody(body);
- try func.endBlock();
+ try cg.genBody(body);
+ try cg.endBlock();
- return func.finishAir(inst, .none, &.{});
+ return cg.finishAir(inst, .none, &.{});
}
-fn airCondBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- const condition = try func.resolveInst(pl_op.operand);
- const extra = func.air.extraData(Air.CondBr, pl_op.payload);
- const then_body: []const Air.Inst.Index = @ptrCast(func.air.extra[extra.end..][0..extra.data.then_body_len]);
- const else_body: []const Air.Inst.Index = @ptrCast(func.air.extra[extra.end + then_body.len ..][0..extra.data.else_body_len]);
- const liveness_condbr = func.liveness.getCondBr(inst);
+fn airCondBr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+ const condition = try cg.resolveInst(pl_op.operand);
+ const extra = cg.air.extraData(Air.CondBr, pl_op.payload);
+ const then_body: []const Air.Inst.Index = @ptrCast(cg.air.extra[extra.end..][0..extra.data.then_body_len]);
+ const else_body: []const Air.Inst.Index = @ptrCast(cg.air.extra[extra.end + then_body.len ..][0..extra.data.else_body_len]);
+ const liveness_condbr = cg.liveness.getCondBr(inst);
// result type is always noreturn, so use `block_empty` as type.
- try func.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
// emit the conditional value
- try func.emitWValue(condition);
+ try cg.emitWValue(condition);
// we inserted the block in front of the condition
// so now check if condition matches. If not, break outside this block
// and continue with the then codepath
- try func.addLabel(.br_if, 0);
+ try cg.addLabel(.br_if, 0);
- try func.branches.ensureUnusedCapacity(func.gpa, 2);
+ try cg.branches.ensureUnusedCapacity(cg.gpa, 2);
{
- func.branches.appendAssumeCapacity(.{});
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, @as(u32, @intCast(liveness_condbr.else_deaths.len)));
+ cg.branches.appendAssumeCapacity(.{});
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, @as(u32, @intCast(liveness_condbr.else_deaths.len)));
defer {
- var else_stack = func.branches.pop();
- else_stack.deinit(func.gpa);
+ var else_stack = cg.branches.pop();
+ else_stack.deinit(cg.gpa);
}
- try func.genBody(else_body);
- try func.endBlock();
+ try cg.genBody(else_body);
+ try cg.endBlock();
}
// Outer block that matches the condition
{
- func.branches.appendAssumeCapacity(.{});
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, @as(u32, @intCast(liveness_condbr.then_deaths.len)));
+ cg.branches.appendAssumeCapacity(.{});
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, @as(u32, @intCast(liveness_condbr.then_deaths.len)));
defer {
- var then_stack = func.branches.pop();
- then_stack.deinit(func.gpa);
+ var then_stack = cg.branches.pop();
+ then_stack.deinit(cg.gpa);
}
- try func.genBody(then_body);
+ try cg.genBody(then_body);
}
- return func.finishAir(inst, .none, &.{});
+ return cg.finishAir(inst, .none, &.{});
}
-fn airCmp(func: *CodeGen, inst: Air.Inst.Index, op: std.math.CompareOperator) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airCmp(cg: *CodeGen, inst: Air.Inst.Index, op: std.math.CompareOperator) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
- const operand_ty = func.typeOf(bin_op.lhs);
- const result = try func.cmp(lhs, rhs, operand_ty, op);
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
+ const operand_ty = cg.typeOf(bin_op.lhs);
+ const result = try cg.cmp(lhs, rhs, operand_ty, op);
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
/// Compares two operands.
/// Asserts rhs is not a stack value when the lhs isn't a stack value either
/// NOTE: This leaves the result on top of the stack, rather than a new local.
-fn cmp(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: std.math.CompareOperator) InnerError!WValue {
+fn cmp(cg: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: std.math.CompareOperator) InnerError!WValue {
assert(!(lhs != .stack and rhs == .stack));
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
if (ty.zigTypeTag(zcu) == .optional and !ty.optionalReprIsPayload(zcu)) {
const payload_ty = ty.optionalChild(zcu);
@@ -3538,12 +3536,12 @@ fn cmp(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: std.math.CompareO
// When we hit this case, we must check the value of optionals
// that are not pointers. This means first checking against non-null for
// both lhs and rhs, as well as checking the payload are matching of lhs and rhs
- return func.cmpOptionals(lhs, rhs, ty, op);
+ return cg.cmpOptionals(lhs, rhs, ty, op);
}
} else if (ty.isAnyFloat()) {
- return func.cmpFloat(ty, lhs, rhs, op);
- } else if (isByRef(ty, pt, func.target)) {
- return func.cmpBigInt(lhs, rhs, ty, op);
+ return cg.cmpFloat(ty, lhs, rhs, op);
+ } else if (isByRef(ty, pt, cg.target)) {
+ return cg.cmpBigInt(lhs, rhs, ty, op);
}
const signedness: std.builtin.Signedness = blk: {
@@ -3556,11 +3554,11 @@ fn cmp(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: std.math.CompareO
// ensure that when we compare pointers, we emit
// the true pointer of a stack value, rather than the stack pointer.
- try func.lowerToStack(lhs);
- try func.lowerToStack(rhs);
+ try cg.lowerToStack(lhs);
+ try cg.lowerToStack(rhs);
const opcode: std.wasm.Opcode = buildOpcode(.{
- .valtype1 = typeToValtype(ty, pt, func.target),
+ .valtype1 = typeToValtype(ty, pt, cg.target),
.op = switch (op) {
.lt => .lt,
.lte => .le,
@@ -3571,15 +3569,15 @@ fn cmp(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: std.math.CompareO
},
.signedness = signedness,
});
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
}
/// Compares two floats.
/// NOTE: Leaves the result of the comparison on top of the stack.
-fn cmpFloat(func: *CodeGen, ty: Type, lhs: WValue, rhs: WValue, cmp_op: std.math.CompareOperator) InnerError!WValue {
- const float_bits = ty.floatBits(func.target.*);
+fn cmpFloat(cg: *CodeGen, ty: Type, lhs: WValue, rhs: WValue, cmp_op: std.math.CompareOperator) InnerError!WValue {
+ const float_bits = ty.floatBits(cg.target.*);
const op: Op = switch (cmp_op) {
.lt => .lt,
@@ -3592,18 +3590,18 @@ fn cmpFloat(func: *CodeGen, ty: Type, lhs: WValue, rhs: WValue, cmp_op: std.math
switch (float_bits) {
16 => {
- _ = try func.fpext(lhs, Type.f16, Type.f32);
- _ = try func.fpext(rhs, Type.f16, Type.f32);
+ _ = try cg.fpext(lhs, Type.f16, Type.f32);
+ _ = try cg.fpext(rhs, Type.f16, Type.f32);
const opcode = buildOpcode(.{ .op = op, .valtype1 = .f32 });
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
},
32, 64 => {
- try func.emitWValue(lhs);
- try func.emitWValue(rhs);
+ try cg.emitWValue(lhs);
+ try cg.emitWValue(rhs);
const val_type: std.wasm.Valtype = if (float_bits == 32) .f32 else .f64;
const opcode = buildOpcode(.{ .op = op, .valtype1 = val_type });
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
},
80, 128 => {
@@ -3612,121 +3610,121 @@ fn cmpFloat(func: *CodeGen, ty: Type, lhs: WValue, rhs: WValue, cmp_op: std.math
@tagName(op), target_util.compilerRtFloatAbbrev(float_bits),
}) catch unreachable;
- const result = try func.callIntrinsic(fn_name, &.{ ty.ip_index, ty.ip_index }, Type.bool, &.{ lhs, rhs });
- return func.cmp(result, .{ .imm32 = 0 }, Type.i32, cmp_op);
+ const result = try cg.callIntrinsic(fn_name, &.{ ty.ip_index, ty.ip_index }, Type.bool, &.{ lhs, rhs });
+ return cg.cmp(result, .{ .imm32 = 0 }, Type.i32, cmp_op);
},
else => unreachable,
}
}
-fn airCmpVector(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+fn airCmpVector(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
_ = inst;
- return func.fail("TODO implement airCmpVector for wasm", .{});
+ return cg.fail("TODO implement airCmpVector for wasm", .{});
}
-fn airCmpLtErrorsLen(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
+fn airCmpLtErrorsLen(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
- try func.emitWValue(operand);
- const pt = func.pt;
+ try cg.emitWValue(operand);
+ const pt = cg.pt;
const err_int_ty = try pt.errorIntType();
- try func.addTag(.errors_len);
- const result = try func.cmp(.stack, .stack, err_int_ty, .lt);
+ try cg.addTag(.errors_len);
+ const result = try cg.cmp(.stack, .stack, err_int_ty, .lt);
- return func.finishAir(inst, result, &.{un_op});
+ return cg.finishAir(inst, result, &.{un_op});
}
-fn airBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const zcu = func.pt.zcu;
- const br = func.air.instructions.items(.data)[@intFromEnum(inst)].br;
- const block = func.blocks.get(br.block_inst).?;
+fn airBr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const zcu = cg.pt.zcu;
+ const br = cg.air.instructions.items(.data)[@intFromEnum(inst)].br;
+ const block = cg.blocks.get(br.block_inst).?;
// if operand has codegen bits we should break with a value
- if (func.typeOf(br.operand).hasRuntimeBitsIgnoreComptime(zcu)) {
- const operand = try func.resolveInst(br.operand);
- try func.lowerToStack(operand);
+ if (cg.typeOf(br.operand).hasRuntimeBitsIgnoreComptime(zcu)) {
+ const operand = try cg.resolveInst(br.operand);
+ try cg.lowerToStack(operand);
if (block.value != .none) {
- try func.addLabel(.local_set, block.value.local.value);
+ try cg.addLabel(.local_set, block.value.local.value);
}
}
// We map every block to its block index.
// We then determine how far we have to jump to it by subtracting it from current block depth
- const idx: u32 = func.block_depth - block.label;
- try func.addLabel(.br, idx);
+ const idx: u32 = cg.block_depth - block.label;
+ try cg.addLabel(.br, idx);
- return func.finishAir(inst, .none, &.{br.operand});
+ return cg.finishAir(inst, .none, &.{br.operand});
}
-fn airRepeat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const repeat = func.air.instructions.items(.data)[@intFromEnum(inst)].repeat;
- const loop_label = func.loops.get(repeat.loop_inst).?;
+fn airRepeat(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const repeat = cg.air.instructions.items(.data)[@intFromEnum(inst)].repeat;
+ const loop_label = cg.loops.get(repeat.loop_inst).?;
- const idx: u32 = func.block_depth - loop_label;
- try func.addLabel(.br, idx);
+ const idx: u32 = cg.block_depth - loop_label;
+ try cg.addLabel(.br, idx);
- return func.finishAir(inst, .none, &.{});
+ return cg.finishAir(inst, .none, &.{});
}
-fn airNot(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airNot(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const operand_ty = func.typeOf(ty_op.operand);
- const pt = func.pt;
+ const operand = try cg.resolveInst(ty_op.operand);
+ const operand_ty = cg.typeOf(ty_op.operand);
+ const pt = cg.pt;
const zcu = pt.zcu;
const result = result: {
if (operand_ty.zigTypeTag(zcu) == .bool) {
- try func.emitWValue(operand);
- try func.addTag(.i32_eqz);
- const not_tmp = try func.allocLocal(operand_ty);
- try func.addLabel(.local_set, not_tmp.local.value);
+ try cg.emitWValue(operand);
+ try cg.addTag(.i32_eqz);
+ const not_tmp = try cg.allocLocal(operand_ty);
+ try cg.addLabel(.local_set, not_tmp.local.value);
break :result not_tmp;
} else {
const int_info = operand_ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: Implement binary NOT for {}", .{operand_ty.fmt(pt)});
+ return cg.fail("TODO: Implement binary NOT for {}", .{operand_ty.fmt(pt)});
};
switch (wasm_bits) {
32 => {
- try func.emitWValue(operand);
- try func.addImm32(switch (int_info.signedness) {
+ try cg.emitWValue(operand);
+ try cg.addImm32(switch (int_info.signedness) {
.unsigned => ~@as(u32, 0) >> @intCast(32 - int_info.bits),
.signed => ~@as(u32, 0),
});
- try func.addTag(.i32_xor);
+ try cg.addTag(.i32_xor);
break :result .stack;
},
64 => {
- try func.emitWValue(operand);
- try func.addImm64(switch (int_info.signedness) {
+ try cg.emitWValue(operand);
+ try cg.addImm64(switch (int_info.signedness) {
.unsigned => ~@as(u64, 0) >> @intCast(64 - int_info.bits),
.signed => ~@as(u64, 0),
});
- try func.addTag(.i64_xor);
+ try cg.addTag(.i64_xor);
break :result .stack;
},
128 => {
- const ptr = try func.allocStack(operand_ty);
+ const ptr = try cg.allocStack(operand_ty);
- try func.emitWValue(ptr);
- _ = try func.load(operand, Type.u64, 0);
- try func.addImm64(~@as(u64, 0));
- try func.addTag(.i64_xor);
- try func.store(.stack, .stack, Type.u64, ptr.offset());
+ try cg.emitWValue(ptr);
+ _ = try cg.load(operand, Type.u64, 0);
+ try cg.addImm64(~@as(u64, 0));
+ try cg.addTag(.i64_xor);
+ try cg.store(.stack, .stack, Type.u64, ptr.offset());
- try func.emitWValue(ptr);
- _ = try func.load(operand, Type.u64, 8);
- try func.addImm64(switch (int_info.signedness) {
+ try cg.emitWValue(ptr);
+ _ = try cg.load(operand, Type.u64, 8);
+ try cg.addImm64(switch (int_info.signedness) {
.unsigned => ~@as(u64, 0) >> @intCast(128 - int_info.bits),
.signed => ~@as(u64, 0),
});
- try func.addTag(.i64_xor);
- try func.store(.stack, .stack, Type.u64, ptr.offset() + 8);
+ try cg.addTag(.i64_xor);
+ try cg.store(.stack, .stack, Type.u64, ptr.offset() + 8);
break :result ptr;
},
@@ -3734,33 +3732,33 @@ fn airNot(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}
}
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airTrap(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- try func.addTag(.@"unreachable");
- return func.finishAir(inst, .none, &.{});
+fn airTrap(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ try cg.addTag(.@"unreachable");
+ return cg.finishAir(inst, .none, &.{});
}
-fn airBreakpoint(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+fn airBreakpoint(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
// unsupported by wasm itfunc. Can be implemented once we support DWARF
// for wasm
- try func.addTag(.@"unreachable");
- return func.finishAir(inst, .none, &.{});
+ try cg.addTag(.@"unreachable");
+ return cg.finishAir(inst, .none, &.{});
}
-fn airUnreachable(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- try func.addTag(.@"unreachable");
- return func.finishAir(inst, .none, &.{});
+fn airUnreachable(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ try cg.addTag(.@"unreachable");
+ return cg.finishAir(inst, .none, &.{});
}
-fn airBitcast(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airBitcast(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const wanted_ty = func.typeOfIndex(inst);
- const given_ty = func.typeOf(ty_op.operand);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const operand = try cg.resolveInst(ty_op.operand);
+ const wanted_ty = cg.typeOfIndex(inst);
+ const given_ty = cg.typeOf(ty_op.operand);
const bit_size = given_ty.bitSize(zcu);
const needs_wrapping = (given_ty.isSignedInt(zcu) != wanted_ty.isSignedInt(zcu)) and
@@ -3768,38 +3766,38 @@ fn airBitcast(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const result = result: {
if (given_ty.isAnyFloat() or wanted_ty.isAnyFloat()) {
- break :result try func.bitcast(wanted_ty, given_ty, operand);
+ break :result try cg.bitcast(wanted_ty, given_ty, operand);
}
- if (isByRef(given_ty, pt, func.target) and !isByRef(wanted_ty, pt, func.target)) {
- const loaded_memory = try func.load(operand, wanted_ty, 0);
+ if (isByRef(given_ty, pt, cg.target) and !isByRef(wanted_ty, pt, cg.target)) {
+ const loaded_memory = try cg.load(operand, wanted_ty, 0);
if (needs_wrapping) {
- break :result try func.wrapOperand(loaded_memory, wanted_ty);
+ break :result try cg.wrapOperand(loaded_memory, wanted_ty);
} else {
break :result loaded_memory;
}
}
- if (!isByRef(given_ty, pt, func.target) and isByRef(wanted_ty, pt, func.target)) {
- const stack_memory = try func.allocStack(wanted_ty);
- try func.store(stack_memory, operand, given_ty, 0);
+ if (!isByRef(given_ty, pt, cg.target) and isByRef(wanted_ty, pt, cg.target)) {
+ const stack_memory = try cg.allocStack(wanted_ty);
+ try cg.store(stack_memory, operand, given_ty, 0);
if (needs_wrapping) {
- break :result try func.wrapOperand(stack_memory, wanted_ty);
+ break :result try cg.wrapOperand(stack_memory, wanted_ty);
} else {
break :result stack_memory;
}
}
if (needs_wrapping) {
- break :result try func.wrapOperand(operand, wanted_ty);
+ break :result try cg.wrapOperand(operand, wanted_ty);
}
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn bitcast(func: *CodeGen, wanted_ty: Type, given_ty: Type, operand: WValue) InnerError!WValue {
- const pt = func.pt;
+fn bitcast(cg: *CodeGen, wanted_ty: Type, given_ty: Type, operand: WValue) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
// if we bitcast a float to or from an integer we must use the 'reinterpret' instruction
if (!(wanted_ty.isAnyFloat() or given_ty.isAnyFloat())) return operand;
@@ -3809,41 +3807,41 @@ fn bitcast(func: *CodeGen, wanted_ty: Type, given_ty: Type, operand: WValue) Inn
const opcode = buildOpcode(.{
.op = .reinterpret,
- .valtype1 = typeToValtype(wanted_ty, pt, func.target),
- .valtype2 = typeToValtype(given_ty, pt, func.target),
+ .valtype1 = typeToValtype(wanted_ty, pt, cg.target),
+ .valtype2 = typeToValtype(given_ty, pt, cg.target),
});
- try func.emitWValue(operand);
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.emitWValue(operand);
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
}
-fn airStructFieldPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airStructFieldPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.StructField, ty_pl.payload);
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.StructField, ty_pl.payload);
- const struct_ptr = try func.resolveInst(extra.data.struct_operand);
- const struct_ptr_ty = func.typeOf(extra.data.struct_operand);
+ const struct_ptr = try cg.resolveInst(extra.data.struct_operand);
+ const struct_ptr_ty = cg.typeOf(extra.data.struct_operand);
const struct_ty = struct_ptr_ty.childType(zcu);
- const result = try func.structFieldPtr(inst, extra.data.struct_operand, struct_ptr, struct_ptr_ty, struct_ty, extra.data.field_index);
- return func.finishAir(inst, result, &.{extra.data.struct_operand});
+ const result = try cg.structFieldPtr(inst, extra.data.struct_operand, struct_ptr, struct_ptr_ty, struct_ty, extra.data.field_index);
+ return cg.finishAir(inst, result, &.{extra.data.struct_operand});
}
-fn airStructFieldPtrIndex(func: *CodeGen, inst: Air.Inst.Index, index: u32) InnerError!void {
- const pt = func.pt;
+fn airStructFieldPtrIndex(cg: *CodeGen, inst: Air.Inst.Index, index: u32) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const struct_ptr = try func.resolveInst(ty_op.operand);
- const struct_ptr_ty = func.typeOf(ty_op.operand);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const struct_ptr = try cg.resolveInst(ty_op.operand);
+ const struct_ptr_ty = cg.typeOf(ty_op.operand);
const struct_ty = struct_ptr_ty.childType(zcu);
- const result = try func.structFieldPtr(inst, ty_op.operand, struct_ptr, struct_ptr_ty, struct_ty, index);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const result = try cg.structFieldPtr(inst, ty_op.operand, struct_ptr, struct_ptr_ty, struct_ty, index);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
fn structFieldPtr(
- func: *CodeGen,
+ cg: *CodeGen,
inst: Air.Inst.Index,
ref: Air.Inst.Ref,
struct_ptr: WValue,
@@ -3851,9 +3849,9 @@ fn structFieldPtr(
struct_ty: Type,
index: u32,
) InnerError!WValue {
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const result_ty = func.typeOfIndex(inst);
+ const result_ty = cg.typeOfIndex(inst);
const struct_ptr_ty_info = struct_ptr_ty.ptrInfo(zcu);
const offset = switch (struct_ty.containerLayout(zcu)) {
@@ -3872,28 +3870,28 @@ fn structFieldPtr(
};
// save a load and store when we can simply reuse the operand
if (offset == 0) {
- return func.reuseOperand(ref, struct_ptr);
+ return cg.reuseOperand(ref, struct_ptr);
}
switch (struct_ptr) {
.stack_offset => |stack_offset| {
return .{ .stack_offset = .{ .value = stack_offset.value + @as(u32, @intCast(offset)), .references = 1 } };
},
- else => return func.buildPointerOffset(struct_ptr, offset, .new),
+ else => return cg.buildPointerOffset(struct_ptr, offset, .new),
}
}
-fn airStructFieldVal(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airStructFieldVal(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const struct_field = func.air.extraData(Air.StructField, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const struct_field = cg.air.extraData(Air.StructField, ty_pl.payload).data;
- const struct_ty = func.typeOf(struct_field.struct_operand);
- const operand = try func.resolveInst(struct_field.struct_operand);
+ const struct_ty = cg.typeOf(struct_field.struct_operand);
+ const operand = try cg.resolveInst(struct_field.struct_operand);
const field_index = struct_field.field_index;
const field_ty = struct_ty.fieldType(field_index, zcu);
- if (!field_ty.hasRuntimeBitsIgnoreComptime(zcu)) return func.finishAir(inst, .none, &.{struct_field.struct_operand});
+ if (!field_ty.hasRuntimeBitsIgnoreComptime(zcu)) return cg.finishAir(inst, .none, &.{struct_field.struct_operand});
const result: WValue = switch (struct_ty.containerLayout(zcu)) {
.@"packed" => switch (struct_ty.zigTypeTag(zcu)) {
@@ -3902,42 +3900,42 @@ fn airStructFieldVal(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const offset = pt.structPackedFieldBitOffset(packed_struct, field_index);
const backing_ty = Type.fromInterned(packed_struct.backingIntTypeUnordered(ip));
const wasm_bits = toWasmBits(backing_ty.intInfo(zcu).bits) orelse {
- return func.fail("TODO: airStructFieldVal for packed structs larger than 128 bits", .{});
+ return cg.fail("TODO: airStructFieldVal for packed structs larger than 128 bits", .{});
};
const const_wvalue: WValue = if (wasm_bits == 32)
.{ .imm32 = offset }
else if (wasm_bits == 64)
.{ .imm64 = offset }
else
- return func.fail("TODO: airStructFieldVal for packed structs larger than 64 bits", .{});
+ return cg.fail("TODO: airStructFieldVal for packed structs larger than 64 bits", .{});
// for first field we don't require any shifting
const shifted_value = if (offset == 0)
operand
else
- try func.binOp(operand, const_wvalue, backing_ty, .shr);
+ try cg.binOp(operand, const_wvalue, backing_ty, .shr);
if (field_ty.zigTypeTag(zcu) == .float) {
const int_type = try pt.intType(.unsigned, @as(u16, @intCast(field_ty.bitSize(zcu))));
- const truncated = try func.trunc(shifted_value, int_type, backing_ty);
- break :result try func.bitcast(field_ty, int_type, truncated);
+ const truncated = try cg.trunc(shifted_value, int_type, backing_ty);
+ break :result try cg.bitcast(field_ty, int_type, truncated);
} else if (field_ty.isPtrAtRuntime(zcu) and packed_struct.field_types.len == 1) {
// In this case we do not have to perform any transformations,
// we can simply reuse the operand.
- break :result func.reuseOperand(struct_field.struct_operand, operand);
+ break :result cg.reuseOperand(struct_field.struct_operand, operand);
} else if (field_ty.isPtrAtRuntime(zcu)) {
const int_type = try pt.intType(.unsigned, @as(u16, @intCast(field_ty.bitSize(zcu))));
- break :result try func.trunc(shifted_value, int_type, backing_ty);
+ break :result try cg.trunc(shifted_value, int_type, backing_ty);
}
- break :result try func.trunc(shifted_value, field_ty, backing_ty);
+ break :result try cg.trunc(shifted_value, field_ty, backing_ty);
},
.@"union" => result: {
- if (isByRef(struct_ty, pt, func.target)) {
- if (!isByRef(field_ty, pt, func.target)) {
- break :result try func.load(operand, field_ty, 0);
+ if (isByRef(struct_ty, pt, cg.target)) {
+ if (!isByRef(field_ty, pt, cg.target)) {
+ break :result try cg.load(operand, field_ty, 0);
} else {
- const new_stack_val = try func.allocStack(field_ty);
- try func.store(new_stack_val, operand, field_ty, 0);
+ const new_stack_val = try cg.allocStack(field_ty);
+ try cg.store(new_stack_val, operand, field_ty, 0);
break :result new_stack_val;
}
}
@@ -3945,45 +3943,45 @@ fn airStructFieldVal(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const union_int_type = try pt.intType(.unsigned, @as(u16, @intCast(struct_ty.bitSize(zcu))));
if (field_ty.zigTypeTag(zcu) == .float) {
const int_type = try pt.intType(.unsigned, @as(u16, @intCast(field_ty.bitSize(zcu))));
- const truncated = try func.trunc(operand, int_type, union_int_type);
- break :result try func.bitcast(field_ty, int_type, truncated);
+ const truncated = try cg.trunc(operand, int_type, union_int_type);
+ break :result try cg.bitcast(field_ty, int_type, truncated);
} else if (field_ty.isPtrAtRuntime(zcu)) {
const int_type = try pt.intType(.unsigned, @as(u16, @intCast(field_ty.bitSize(zcu))));
- break :result try func.trunc(operand, int_type, union_int_type);
+ break :result try cg.trunc(operand, int_type, union_int_type);
}
- break :result try func.trunc(operand, field_ty, union_int_type);
+ break :result try cg.trunc(operand, field_ty, union_int_type);
},
else => unreachable,
},
else => result: {
const offset = std.math.cast(u32, struct_ty.structFieldOffset(field_index, zcu)) orelse {
- return func.fail("Field type '{}' too big to fit into stack frame", .{field_ty.fmt(pt)});
+ return cg.fail("Field type '{}' too big to fit into stack frame", .{field_ty.fmt(pt)});
};
- if (isByRef(field_ty, pt, func.target)) {
+ if (isByRef(field_ty, pt, cg.target)) {
switch (operand) {
.stack_offset => |stack_offset| {
break :result .{ .stack_offset = .{ .value = stack_offset.value + offset, .references = 1 } };
},
- else => break :result try func.buildPointerOffset(operand, offset, .new),
+ else => break :result try cg.buildPointerOffset(operand, offset, .new),
}
}
- break :result try func.load(operand, field_ty, offset);
+ break :result try cg.load(operand, field_ty, offset);
},
};
- return func.finishAir(inst, result, &.{struct_field.struct_operand});
+ return cg.finishAir(inst, result, &.{struct_field.struct_operand});
}
-fn airSwitchBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airSwitchBr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
// result type is always 'noreturn'
const blocktype = std.wasm.block_empty;
- const switch_br = func.air.unwrapSwitch(inst);
- const target = try func.resolveInst(switch_br.operand);
- const target_ty = func.typeOf(switch_br.operand);
- const liveness = try func.liveness.getSwitchBr(func.gpa, inst, switch_br.cases_len + 1);
- defer func.gpa.free(liveness.deaths);
+ const switch_br = cg.air.unwrapSwitch(inst);
+ const target = try cg.resolveInst(switch_br.operand);
+ const target_ty = cg.typeOf(switch_br.operand);
+ const liveness = try cg.liveness.getSwitchBr(cg.gpa, inst, switch_br.cases_len + 1);
+ defer cg.gpa.free(liveness.deaths);
// a list that maps each value with its value and body based on the order inside the list.
const CaseValue = union(enum) {
@@ -3993,21 +3991,21 @@ fn airSwitchBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
var case_list = try std.ArrayList(struct {
values: []const CaseValue,
body: []const Air.Inst.Index,
- }).initCapacity(func.gpa, switch_br.cases_len);
+ }).initCapacity(cg.gpa, switch_br.cases_len);
defer for (case_list.items) |case| {
- func.gpa.free(case.values);
+ cg.gpa.free(case.values);
} else case_list.deinit();
var lowest_maybe: ?i32 = null;
var highest_maybe: ?i32 = null;
var it = switch_br.iterateCases();
while (it.next()) |case| {
- const values = try func.gpa.alloc(CaseValue, case.items.len + case.ranges.len);
- errdefer func.gpa.free(values);
+ const values = try cg.gpa.alloc(CaseValue, case.items.len + case.ranges.len);
+ errdefer cg.gpa.free(values);
for (case.items, 0..) |ref, i| {
- const item_val = (try func.air.value(ref, pt)).?;
- const int_val = func.valueAsI32(item_val);
+ const item_val = (try cg.air.value(ref, pt)).?;
+ const int_val = cg.valueAsI32(item_val);
if (lowest_maybe == null or int_val < lowest_maybe.?) {
lowest_maybe = int_val;
}
@@ -4018,15 +4016,15 @@ fn airSwitchBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}
for (case.ranges, 0..) |range, i| {
- const min_val = (try func.air.value(range[0], pt)).?;
- const int_min_val = func.valueAsI32(min_val);
+ const min_val = (try cg.air.value(range[0], pt)).?;
+ const int_min_val = cg.valueAsI32(min_val);
if (lowest_maybe == null or int_min_val < lowest_maybe.?) {
lowest_maybe = int_min_val;
}
- const max_val = (try func.air.value(range[1], pt)).?;
- const int_max_val = func.valueAsI32(max_val);
+ const max_val = (try cg.air.value(range[1], pt)).?;
+ const int_max_val = cg.valueAsI32(max_val);
if (highest_maybe == null or int_max_val > highest_maybe.?) {
highest_maybe = int_max_val;
@@ -4041,7 +4039,7 @@ fn airSwitchBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}
case_list.appendAssumeCapacity(.{ .values = values, .body = case.body });
- try func.startBlock(.block, blocktype);
+ try cg.startBlock(.block, blocktype);
}
// When highest and lowest are null, we have no cases and can use a jump table
@@ -4057,7 +4055,7 @@ fn airSwitchBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const else_body = it.elseBody();
const has_else_body = else_body.len != 0;
if (has_else_body) {
- try func.startBlock(.block, blocktype);
+ try cg.startBlock(.block, blocktype);
}
if (!is_sparse) {
@@ -4065,25 +4063,25 @@ fn airSwitchBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
// The value 'target' represents the index into the table.
// Each index in the table represents a label to the branch
// to jump to.
- try func.startBlock(.block, blocktype);
- try func.emitWValue(target);
+ try cg.startBlock(.block, blocktype);
+ try cg.emitWValue(target);
if (lowest < 0) {
// since br_table works using indexes, starting from '0', we must ensure all values
// we put inside, are atleast 0.
- try func.addImm32(@bitCast(lowest * -1));
- try func.addTag(.i32_add);
+ try cg.addImm32(@bitCast(lowest * -1));
+ try cg.addTag(.i32_add);
} else if (lowest > 0) {
// make the index start from 0 by substracting the lowest value
- try func.addImm32(@bitCast(lowest));
- try func.addTag(.i32_sub);
+ try cg.addImm32(@bitCast(lowest));
+ try cg.addTag(.i32_sub);
}
// Account for default branch so always add '1'
const depth = @as(u32, @intCast(highest - lowest + @intFromBool(has_else_body))) + 1;
const jump_table: Mir.JumpTable = .{ .length = depth };
- const table_extra_index = try func.addExtra(jump_table);
- try func.addInst(.{ .tag = .br_table, .data = .{ .payload = table_extra_index } });
- try func.mir_extra.ensureUnusedCapacity(func.gpa, depth);
+ const table_extra_index = try cg.addExtra(jump_table);
+ try cg.addInst(.{ .tag = .br_table, .data = .{ .payload = table_extra_index } });
+ try cg.mir_extra.ensureUnusedCapacity(cg.gpa, depth);
var value = lowest;
while (value <= highest) : (value += 1) {
// idx represents the branch we jump to
@@ -4104,78 +4102,78 @@ fn airSwitchBr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
// by using a jump table for this instead of if-else chains.
break :blk if (has_else_body or target_ty.zigTypeTag(zcu) == .error_set) switch_br.cases_len else unreachable;
};
- func.mir_extra.appendAssumeCapacity(idx);
+ cg.mir_extra.appendAssumeCapacity(idx);
} else if (has_else_body) {
- func.mir_extra.appendAssumeCapacity(switch_br.cases_len); // default branch
+ cg.mir_extra.appendAssumeCapacity(switch_br.cases_len); // default branch
}
- try func.endBlock();
+ try cg.endBlock();
}
- try func.branches.ensureUnusedCapacity(func.gpa, case_list.items.len + @intFromBool(has_else_body));
+ try cg.branches.ensureUnusedCapacity(cg.gpa, case_list.items.len + @intFromBool(has_else_body));
for (case_list.items, 0..) |case, index| {
// when sparse, we use if/else-chain, so emit conditional checks
if (is_sparse) {
// for single value prong we can emit a simple condition
if (case.values.len == 1 and case.values[0] == .singular) {
- const val = try func.lowerConstant(case.values[0].singular.value, target_ty);
+ const val = try cg.lowerConstant(case.values[0].singular.value, target_ty);
// not equal, because we want to jump out of this block if it does not match the condition.
- _ = try func.cmp(target, val, target_ty, .neq);
- try func.addLabel(.br_if, 0);
+ _ = try cg.cmp(target, val, target_ty, .neq);
+ try cg.addLabel(.br_if, 0);
} else {
// in multi-value prongs we must check if any prongs match the target value.
- try func.startBlock(.block, blocktype);
+ try cg.startBlock(.block, blocktype);
for (case.values) |value| {
switch (value) {
.singular => |single_val| {
- const val = try func.lowerConstant(single_val.value, target_ty);
- _ = try func.cmp(target, val, target_ty, .eq);
+ const val = try cg.lowerConstant(single_val.value, target_ty);
+ _ = try cg.cmp(target, val, target_ty, .eq);
},
.range => |range| {
- const min_val = try func.lowerConstant(range.min_value, target_ty);
- const max_val = try func.lowerConstant(range.max_value, target_ty);
+ const min_val = try cg.lowerConstant(range.min_value, target_ty);
+ const max_val = try cg.lowerConstant(range.max_value, target_ty);
- const gte = try func.cmp(target, min_val, target_ty, .gte);
- const lte = try func.cmp(target, max_val, target_ty, .lte);
- _ = try func.binOp(gte, lte, Type.bool, .@"and");
+ const gte = try cg.cmp(target, min_val, target_ty, .gte);
+ const lte = try cg.cmp(target, max_val, target_ty, .lte);
+ _ = try cg.binOp(gte, lte, Type.bool, .@"and");
},
}
- try func.addLabel(.br_if, 0);
+ try cg.addLabel(.br_if, 0);
}
// value did not match any of the prong values
- try func.addLabel(.br, 1);
- try func.endBlock();
+ try cg.addLabel(.br, 1);
+ try cg.endBlock();
}
}
- func.branches.appendAssumeCapacity(.{});
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, liveness.deaths[index].len);
+ cg.branches.appendAssumeCapacity(.{});
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, liveness.deaths[index].len);
defer {
- var case_branch = func.branches.pop();
- case_branch.deinit(func.gpa);
+ var case_branch = cg.branches.pop();
+ case_branch.deinit(cg.gpa);
}
- try func.genBody(case.body);
- try func.endBlock();
+ try cg.genBody(case.body);
+ try cg.endBlock();
}
if (has_else_body) {
- func.branches.appendAssumeCapacity(.{});
+ cg.branches.appendAssumeCapacity(.{});
const else_deaths = liveness.deaths.len - 1;
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, liveness.deaths[else_deaths].len);
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, liveness.deaths[else_deaths].len);
defer {
- var else_branch = func.branches.pop();
- else_branch.deinit(func.gpa);
+ var else_branch = cg.branches.pop();
+ else_branch.deinit(cg.gpa);
}
- try func.genBody(else_body);
- try func.endBlock();
+ try cg.genBody(else_body);
+ try cg.endBlock();
}
- return func.finishAir(inst, .none, &.{});
+ return cg.finishAir(inst, .none, &.{});
}
-fn airIsErr(func: *CodeGen, inst: Air.Inst.Index, opcode: std.wasm.Opcode) InnerError!void {
- const pt = func.pt;
+fn airIsErr(cg: *CodeGen, inst: Air.Inst.Index, opcode: std.wasm.Opcode) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
- const err_union_ty = func.typeOf(un_op);
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
+ const err_union_ty = cg.typeOf(un_op);
const pl_ty = err_union_ty.errorUnionPayload(zcu);
const result: WValue = result: {
@@ -4187,57 +4185,57 @@ fn airIsErr(func: *CodeGen, inst: Air.Inst.Index, opcode: std.wasm.Opcode) Inner
}
}
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
if (pl_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- try func.addMemArg(.i32_load16_u, .{
+ try cg.addMemArg(.i32_load16_u, .{
.offset = operand.offset() + @as(u32, @intCast(errUnionErrorOffset(pl_ty, zcu))),
.alignment = @intCast(Type.anyerror.abiAlignment(zcu).toByteUnits().?),
});
}
// Compare the error value with '0'
- try func.addImm32(0);
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addImm32(0);
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
break :result .stack;
};
- return func.finishAir(inst, result, &.{un_op});
+ return cg.finishAir(inst, result, &.{un_op});
}
-fn airUnwrapErrUnionPayload(func: *CodeGen, inst: Air.Inst.Index, op_is_ptr: bool) InnerError!void {
- const pt = func.pt;
+fn airUnwrapErrUnionPayload(cg: *CodeGen, inst: Air.Inst.Index, op_is_ptr: bool) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const op_ty = func.typeOf(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const op_ty = cg.typeOf(ty_op.operand);
const err_ty = if (op_is_ptr) op_ty.childType(zcu) else op_ty;
const payload_ty = err_ty.errorUnionPayload(zcu);
const result: WValue = result: {
if (!payload_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
if (op_is_ptr) {
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
}
break :result .none;
}
const pl_offset = @as(u32, @intCast(errUnionPayloadOffset(payload_ty, zcu)));
- if (op_is_ptr or isByRef(payload_ty, pt, func.target)) {
- break :result try func.buildPointerOffset(operand, pl_offset, .new);
+ if (op_is_ptr or isByRef(payload_ty, pt, cg.target)) {
+ break :result try cg.buildPointerOffset(operand, pl_offset, .new);
}
- break :result try func.load(operand, payload_ty, pl_offset);
+ break :result try cg.load(operand, payload_ty, pl_offset);
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airUnwrapErrUnionError(func: *CodeGen, inst: Air.Inst.Index, op_is_ptr: bool) InnerError!void {
- const pt = func.pt;
+fn airUnwrapErrUnionError(cg: *CodeGen, inst: Air.Inst.Index, op_is_ptr: bool) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const op_ty = func.typeOf(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const op_ty = cg.typeOf(ty_op.operand);
const err_ty = if (op_is_ptr) op_ty.childType(zcu) else op_ty;
const payload_ty = err_ty.errorUnionPayload(zcu);
@@ -4247,103 +4245,103 @@ fn airUnwrapErrUnionError(func: *CodeGen, inst: Air.Inst.Index, op_is_ptr: bool)
}
if (op_is_ptr or !payload_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
}
- break :result try func.load(operand, Type.anyerror, @intCast(errUnionErrorOffset(payload_ty, zcu)));
+ break :result try cg.load(operand, Type.anyerror, @intCast(errUnionErrorOffset(payload_ty, zcu)));
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airWrapErrUnionPayload(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const zcu = func.pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airWrapErrUnionPayload(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const zcu = cg.pt.zcu;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const err_ty = func.typeOfIndex(inst);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const err_ty = cg.typeOfIndex(inst);
- const pl_ty = func.typeOf(ty_op.operand);
+ const pl_ty = cg.typeOf(ty_op.operand);
const result = result: {
if (!pl_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
}
- const err_union = try func.allocStack(err_ty);
- const payload_ptr = try func.buildPointerOffset(err_union, @as(u32, @intCast(errUnionPayloadOffset(pl_ty, zcu))), .new);
- try func.store(payload_ptr, operand, pl_ty, 0);
+ const err_union = try cg.allocStack(err_ty);
+ const payload_ptr = try cg.buildPointerOffset(err_union, @as(u32, @intCast(errUnionPayloadOffset(pl_ty, zcu))), .new);
+ try cg.store(payload_ptr, operand, pl_ty, 0);
// ensure we also write '0' to the error part, so any present stack value gets overwritten by it.
- try func.emitWValue(err_union);
- try func.addImm32(0);
+ try cg.emitWValue(err_union);
+ try cg.addImm32(0);
const err_val_offset: u32 = @intCast(errUnionErrorOffset(pl_ty, zcu));
- try func.addMemArg(.i32_store16, .{
+ try cg.addMemArg(.i32_store16, .{
.offset = err_union.offset() + err_val_offset,
.alignment = 2,
});
break :result err_union;
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airWrapErrUnionErr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airWrapErrUnionErr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
const err_ty = ty_op.ty.toType();
const pl_ty = err_ty.errorUnionPayload(zcu);
const result = result: {
if (!pl_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
}
- const err_union = try func.allocStack(err_ty);
+ const err_union = try cg.allocStack(err_ty);
// store error value
- try func.store(err_union, operand, Type.anyerror, @intCast(errUnionErrorOffset(pl_ty, zcu)));
+ try cg.store(err_union, operand, Type.anyerror, @intCast(errUnionErrorOffset(pl_ty, zcu)));
// write 'undefined' to the payload
- const payload_ptr = try func.buildPointerOffset(err_union, @as(u32, @intCast(errUnionPayloadOffset(pl_ty, zcu))), .new);
+ const payload_ptr = try cg.buildPointerOffset(err_union, @as(u32, @intCast(errUnionPayloadOffset(pl_ty, zcu))), .new);
const len = @as(u32, @intCast(err_ty.errorUnionPayload(zcu).abiSize(zcu)));
- try func.memset(Type.u8, payload_ptr, .{ .imm32 = len }, .{ .imm32 = 0xaa });
+ try cg.memset(Type.u8, payload_ptr, .{ .imm32 = len }, .{ .imm32 = 0xaa });
break :result err_union;
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airIntcast(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airIntcast(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
const ty = ty_op.ty.toType();
- const operand = try func.resolveInst(ty_op.operand);
- const operand_ty = func.typeOf(ty_op.operand);
- const pt = func.pt;
+ const operand = try cg.resolveInst(ty_op.operand);
+ const operand_ty = cg.typeOf(ty_op.operand);
+ const pt = cg.pt;
const zcu = pt.zcu;
if (ty.zigTypeTag(zcu) == .vector or operand_ty.zigTypeTag(zcu) == .vector) {
- return func.fail("todo Wasm intcast for vectors", .{});
+ return cg.fail("todo Wasm intcast for vectors", .{});
}
if (ty.abiSize(zcu) > 16 or operand_ty.abiSize(zcu) > 16) {
- return func.fail("todo Wasm intcast for bitsize > 128", .{});
+ return cg.fail("todo Wasm intcast for bitsize > 128", .{});
}
const op_bits = toWasmBits(@intCast(operand_ty.bitSize(zcu))).?;
const wanted_bits = toWasmBits(@intCast(ty.bitSize(zcu))).?;
const result = if (op_bits == wanted_bits)
- func.reuseOperand(ty_op.operand, operand)
+ cg.reuseOperand(ty_op.operand, operand)
else
- try func.intcast(operand, operand_ty, ty);
+ try cg.intcast(operand, operand_ty, ty);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
/// Upcasts or downcasts an integer based on the given and wanted types,
/// and stores the result in a new operand.
/// Asserts type's bitsize <= 128
/// NOTE: May leave the result on the top of the stack.
-fn intcast(func: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!WValue {
- const pt = func.pt;
+fn intcast(cg: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
const given_bitsize = @as(u16, @intCast(given.bitSize(zcu)));
const wanted_bitsize = @as(u16, @intCast(wanted.bitSize(zcu)));
@@ -4357,469 +4355,469 @@ fn intcast(func: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerErro
}
if (op_bits == 64 and wanted_bits == 32) {
- try func.emitWValue(operand);
- try func.addTag(.i32_wrap_i64);
+ try cg.emitWValue(operand);
+ try cg.addTag(.i32_wrap_i64);
return .stack;
} else if (op_bits == 32 and wanted_bits == 64) {
- try func.emitWValue(operand);
- try func.addTag(if (wanted.isSignedInt(zcu)) .i64_extend_i32_s else .i64_extend_i32_u);
+ try cg.emitWValue(operand);
+ try cg.addTag(if (wanted.isSignedInt(zcu)) .i64_extend_i32_s else .i64_extend_i32_u);
return .stack;
} else if (wanted_bits == 128) {
// for 128bit integers we store the integer in the virtual stack, rather than a local
- const stack_ptr = try func.allocStack(wanted);
- try func.emitWValue(stack_ptr);
+ const stack_ptr = try cg.allocStack(wanted);
+ try cg.emitWValue(stack_ptr);
// for 32 bit integers, we first coerce the value into a 64 bit integer before storing it
// meaning less store operations are required.
const lhs = if (op_bits == 32) blk: {
const sign_ty = if (wanted.isSignedInt(zcu)) Type.i64 else Type.u64;
- break :blk try (try func.intcast(operand, given, sign_ty)).toLocal(func, sign_ty);
+ break :blk try (try cg.intcast(operand, given, sign_ty)).toLocal(cg, sign_ty);
} else operand;
// store lsb first
- try func.store(.stack, lhs, Type.u64, 0 + stack_ptr.offset());
+ try cg.store(.stack, lhs, Type.u64, 0 + stack_ptr.offset());
// For signed integers we shift lsb by 63 (64bit integer - 1 sign bit) and store remaining value
if (wanted.isSignedInt(zcu)) {
- try func.emitWValue(stack_ptr);
- const shr = try func.binOp(lhs, .{ .imm64 = 63 }, Type.i64, .shr);
- try func.store(.stack, shr, Type.u64, 8 + stack_ptr.offset());
+ try cg.emitWValue(stack_ptr);
+ const shr = try cg.binOp(lhs, .{ .imm64 = 63 }, Type.i64, .shr);
+ try cg.store(.stack, shr, Type.u64, 8 + stack_ptr.offset());
} else {
// Ensure memory of msb is zero'd
- try func.store(stack_ptr, .{ .imm64 = 0 }, Type.u64, 8);
+ try cg.store(stack_ptr, .{ .imm64 = 0 }, Type.u64, 8);
}
return stack_ptr;
- } else return func.load(operand, wanted, 0);
+ } else return cg.load(operand, wanted, 0);
}
-fn airIsNull(func: *CodeGen, inst: Air.Inst.Index, opcode: std.wasm.Opcode, op_kind: enum { value, ptr }) InnerError!void {
- const pt = func.pt;
+fn airIsNull(cg: *CodeGen, inst: Air.Inst.Index, opcode: std.wasm.Opcode, op_kind: enum { value, ptr }) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
- const op_ty = func.typeOf(un_op);
+ const op_ty = cg.typeOf(un_op);
const optional_ty = if (op_kind == .ptr) op_ty.childType(zcu) else op_ty;
- const result = try func.isNull(operand, optional_ty, opcode);
- return func.finishAir(inst, result, &.{un_op});
+ const result = try cg.isNull(operand, optional_ty, opcode);
+ return cg.finishAir(inst, result, &.{un_op});
}
/// For a given type and operand, checks if it's considered `null`.
/// NOTE: Leaves the result on the stack
-fn isNull(func: *CodeGen, operand: WValue, optional_ty: Type, opcode: std.wasm.Opcode) InnerError!WValue {
- const pt = func.pt;
+fn isNull(cg: *CodeGen, operand: WValue, optional_ty: Type, opcode: std.wasm.Opcode) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
const payload_ty = optional_ty.optionalChild(zcu);
if (!optional_ty.optionalReprIsPayload(zcu)) {
// When payload is zero-bits, we can treat operand as a value, rather than
// a pointer to the stack value
if (payload_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
const offset = std.math.cast(u32, payload_ty.abiSize(zcu)) orelse {
- return func.fail("Optional type {} too big to fit into stack frame", .{optional_ty.fmt(pt)});
+ return cg.fail("Optional type {} too big to fit into stack frame", .{optional_ty.fmt(pt)});
};
- try func.addMemArg(.i32_load8_u, .{ .offset = operand.offset() + offset, .alignment = 1 });
+ try cg.addMemArg(.i32_load8_u, .{ .offset = operand.offset() + offset, .alignment = 1 });
}
} else if (payload_ty.isSlice(zcu)) {
- switch (func.ptr_size) {
- .wasm32 => try func.addMemArg(.i32_load, .{ .offset = operand.offset(), .alignment = 4 }),
- .wasm64 => try func.addMemArg(.i64_load, .{ .offset = operand.offset(), .alignment = 8 }),
+ switch (cg.ptr_size) {
+ .wasm32 => try cg.addMemArg(.i32_load, .{ .offset = operand.offset(), .alignment = 4 }),
+ .wasm64 => try cg.addMemArg(.i64_load, .{ .offset = operand.offset(), .alignment = 8 }),
}
}
// Compare the null value with '0'
- try func.addImm32(0);
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addImm32(0);
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
return .stack;
}
-fn airOptionalPayload(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airOptionalPayload(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const opt_ty = func.typeOf(ty_op.operand);
- const payload_ty = func.typeOfIndex(inst);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const opt_ty = cg.typeOf(ty_op.operand);
+ const payload_ty = cg.typeOfIndex(inst);
if (!payload_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- return func.finishAir(inst, .none, &.{ty_op.operand});
+ return cg.finishAir(inst, .none, &.{ty_op.operand});
}
const result = result: {
- const operand = try func.resolveInst(ty_op.operand);
- if (opt_ty.optionalReprIsPayload(zcu)) break :result func.reuseOperand(ty_op.operand, operand);
+ const operand = try cg.resolveInst(ty_op.operand);
+ if (opt_ty.optionalReprIsPayload(zcu)) break :result cg.reuseOperand(ty_op.operand, operand);
- if (isByRef(payload_ty, pt, func.target)) {
- break :result try func.buildPointerOffset(operand, 0, .new);
+ if (isByRef(payload_ty, pt, cg.target)) {
+ break :result try cg.buildPointerOffset(operand, 0, .new);
}
- break :result try func.load(operand, payload_ty, 0);
+ break :result try cg.load(operand, payload_ty, 0);
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airOptionalPayloadPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airOptionalPayloadPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const opt_ty = func.typeOf(ty_op.operand).childType(zcu);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const operand = try cg.resolveInst(ty_op.operand);
+ const opt_ty = cg.typeOf(ty_op.operand).childType(zcu);
const result = result: {
const payload_ty = opt_ty.optionalChild(zcu);
if (!payload_ty.hasRuntimeBitsIgnoreComptime(zcu) or opt_ty.optionalReprIsPayload(zcu)) {
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
}
- break :result try func.buildPointerOffset(operand, 0, .new);
+ break :result try cg.buildPointerOffset(operand, 0, .new);
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airOptionalPayloadPtrSet(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airOptionalPayloadPtrSet(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const opt_ty = func.typeOf(ty_op.operand).childType(zcu);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const operand = try cg.resolveInst(ty_op.operand);
+ const opt_ty = cg.typeOf(ty_op.operand).childType(zcu);
const payload_ty = opt_ty.optionalChild(zcu);
if (!payload_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- return func.fail("TODO: Implement OptionalPayloadPtrSet for optional with zero-sized type {}", .{payload_ty.fmtDebug()});
+ return cg.fail("TODO: Implement OptionalPayloadPtrSet for optional with zero-sized type {}", .{payload_ty.fmtDebug()});
}
if (opt_ty.optionalReprIsPayload(zcu)) {
- return func.finishAir(inst, operand, &.{ty_op.operand});
+ return cg.finishAir(inst, operand, &.{ty_op.operand});
}
const offset = std.math.cast(u32, payload_ty.abiSize(zcu)) orelse {
- return func.fail("Optional type {} too big to fit into stack frame", .{opt_ty.fmt(pt)});
+ return cg.fail("Optional type {} too big to fit into stack frame", .{opt_ty.fmt(pt)});
};
- try func.emitWValue(operand);
- try func.addImm32(1);
- try func.addMemArg(.i32_store8, .{ .offset = operand.offset() + offset, .alignment = 1 });
+ try cg.emitWValue(operand);
+ try cg.addImm32(1);
+ try cg.addMemArg(.i32_store8, .{ .offset = operand.offset() + offset, .alignment = 1 });
- const result = try func.buildPointerOffset(operand, 0, .new);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const result = try cg.buildPointerOffset(operand, 0, .new);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airWrapOptional(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const payload_ty = func.typeOf(ty_op.operand);
- const pt = func.pt;
+fn airWrapOptional(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const payload_ty = cg.typeOf(ty_op.operand);
+ const pt = cg.pt;
const zcu = pt.zcu;
const result = result: {
if (!payload_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- const non_null_bit = try func.allocStack(Type.u1);
- try func.emitWValue(non_null_bit);
- try func.addImm32(1);
- try func.addMemArg(.i32_store8, .{ .offset = non_null_bit.offset(), .alignment = 1 });
+ const non_null_bit = try cg.allocStack(Type.u1);
+ try cg.emitWValue(non_null_bit);
+ try cg.addImm32(1);
+ try cg.addMemArg(.i32_store8, .{ .offset = non_null_bit.offset(), .alignment = 1 });
break :result non_null_bit;
}
- const operand = try func.resolveInst(ty_op.operand);
- const op_ty = func.typeOfIndex(inst);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const op_ty = cg.typeOfIndex(inst);
if (op_ty.optionalReprIsPayload(zcu)) {
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
}
const offset = std.math.cast(u32, payload_ty.abiSize(zcu)) orelse {
- return func.fail("Optional type {} too big to fit into stack frame", .{op_ty.fmt(pt)});
+ return cg.fail("Optional type {} too big to fit into stack frame", .{op_ty.fmt(pt)});
};
// Create optional type, set the non-null bit, and store the operand inside the optional type
- const result_ptr = try func.allocStack(op_ty);
- try func.emitWValue(result_ptr);
- try func.addImm32(1);
- try func.addMemArg(.i32_store8, .{ .offset = result_ptr.offset() + offset, .alignment = 1 });
+ const result_ptr = try cg.allocStack(op_ty);
+ try cg.emitWValue(result_ptr);
+ try cg.addImm32(1);
+ try cg.addMemArg(.i32_store8, .{ .offset = result_ptr.offset() + offset, .alignment = 1 });
- const payload_ptr = try func.buildPointerOffset(result_ptr, 0, .new);
- try func.store(payload_ptr, operand, payload_ty, 0);
+ const payload_ptr = try cg.buildPointerOffset(result_ptr, 0, .new);
+ try cg.store(payload_ptr, operand, payload_ty, 0);
break :result result_ptr;
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airSlice(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const bin_op = func.air.extraData(Air.Bin, ty_pl.payload).data;
+fn airSlice(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const bin_op = cg.air.extraData(Air.Bin, ty_pl.payload).data;
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
- const slice_ty = func.typeOfIndex(inst);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
+ const slice_ty = cg.typeOfIndex(inst);
- const slice = try func.allocStack(slice_ty);
- try func.store(slice, lhs, Type.usize, 0);
- try func.store(slice, rhs, Type.usize, func.ptrSize());
+ const slice = try cg.allocStack(slice_ty);
+ try cg.store(slice, lhs, Type.usize, 0);
+ try cg.store(slice, rhs, Type.usize, cg.ptrSize());
- return func.finishAir(inst, slice, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, slice, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airSliceLen(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airSliceLen(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- return func.finishAir(inst, try func.sliceLen(operand), &.{ty_op.operand});
+ const operand = try cg.resolveInst(ty_op.operand);
+ return cg.finishAir(inst, try cg.sliceLen(operand), &.{ty_op.operand});
}
-fn airSliceElemVal(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airSliceElemVal(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const slice_ty = func.typeOf(bin_op.lhs);
- const slice = try func.resolveInst(bin_op.lhs);
- const index = try func.resolveInst(bin_op.rhs);
+ const slice_ty = cg.typeOf(bin_op.lhs);
+ const slice = try cg.resolveInst(bin_op.lhs);
+ const index = try cg.resolveInst(bin_op.rhs);
const elem_ty = slice_ty.childType(zcu);
const elem_size = elem_ty.abiSize(zcu);
// load pointer onto stack
- _ = try func.load(slice, Type.usize, 0);
+ _ = try cg.load(slice, Type.usize, 0);
// calculate index into slice
- try func.emitWValue(index);
- try func.addImm32(@intCast(elem_size));
- try func.addTag(.i32_mul);
- try func.addTag(.i32_add);
+ try cg.emitWValue(index);
+ try cg.addImm32(@intCast(elem_size));
+ try cg.addTag(.i32_mul);
+ try cg.addTag(.i32_add);
- const elem_result = if (isByRef(elem_ty, pt, func.target))
+ const elem_result = if (isByRef(elem_ty, pt, cg.target))
.stack
else
- try func.load(.stack, elem_ty, 0);
+ try cg.load(.stack, elem_ty, 0);
- return func.finishAir(inst, elem_result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, elem_result, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airSliceElemPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airSliceElemPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const bin_op = func.air.extraData(Air.Bin, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const bin_op = cg.air.extraData(Air.Bin, ty_pl.payload).data;
const elem_ty = ty_pl.ty.toType().childType(zcu);
const elem_size = elem_ty.abiSize(zcu);
- const slice = try func.resolveInst(bin_op.lhs);
- const index = try func.resolveInst(bin_op.rhs);
+ const slice = try cg.resolveInst(bin_op.lhs);
+ const index = try cg.resolveInst(bin_op.rhs);
- _ = try func.load(slice, Type.usize, 0);
+ _ = try cg.load(slice, Type.usize, 0);
// calculate index into slice
- try func.emitWValue(index);
- try func.addImm32(@intCast(elem_size));
- try func.addTag(.i32_mul);
- try func.addTag(.i32_add);
+ try cg.emitWValue(index);
+ try cg.addImm32(@intCast(elem_size));
+ try cg.addTag(.i32_mul);
+ try cg.addTag(.i32_add);
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airSlicePtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- return func.finishAir(inst, try func.slicePtr(operand), &.{ty_op.operand});
+fn airSlicePtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const operand = try cg.resolveInst(ty_op.operand);
+ return cg.finishAir(inst, try cg.slicePtr(operand), &.{ty_op.operand});
}
-fn slicePtr(func: *CodeGen, operand: WValue) InnerError!WValue {
- const ptr = try func.load(operand, Type.usize, 0);
- return ptr.toLocal(func, Type.usize);
+fn slicePtr(cg: *CodeGen, operand: WValue) InnerError!WValue {
+ const ptr = try cg.load(operand, Type.usize, 0);
+ return ptr.toLocal(cg, Type.usize);
}
-fn sliceLen(func: *CodeGen, operand: WValue) InnerError!WValue {
- const len = try func.load(operand, Type.usize, func.ptrSize());
- return len.toLocal(func, Type.usize);
+fn sliceLen(cg: *CodeGen, operand: WValue) InnerError!WValue {
+ const len = try cg.load(operand, Type.usize, cg.ptrSize());
+ return len.toLocal(cg, Type.usize);
}
-fn airTrunc(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airTrunc(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
const wanted_ty: Type = ty_op.ty.toType();
- const op_ty = func.typeOf(ty_op.operand);
- const pt = func.pt;
+ const op_ty = cg.typeOf(ty_op.operand);
+ const pt = cg.pt;
const zcu = pt.zcu;
if (wanted_ty.zigTypeTag(zcu) == .vector or op_ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: trunc for vectors", .{});
+ return cg.fail("TODO: trunc for vectors", .{});
}
const result = if (op_ty.bitSize(zcu) == wanted_ty.bitSize(zcu))
- func.reuseOperand(ty_op.operand, operand)
+ cg.reuseOperand(ty_op.operand, operand)
else
- try func.trunc(operand, wanted_ty, op_ty);
+ try cg.trunc(operand, wanted_ty, op_ty);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
/// Truncates a given operand to a given type, discarding any overflown bits.
/// NOTE: Resulting value is left on the stack.
-fn trunc(func: *CodeGen, operand: WValue, wanted_ty: Type, given_ty: Type) InnerError!WValue {
- const pt = func.pt;
+fn trunc(cg: *CodeGen, operand: WValue, wanted_ty: Type, given_ty: Type) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
const given_bits = @as(u16, @intCast(given_ty.bitSize(zcu)));
if (toWasmBits(given_bits) == null) {
- return func.fail("TODO: Implement wasm integer truncation for integer bitsize: {d}", .{given_bits});
+ return cg.fail("TODO: Implement wasm integer truncation for integer bitsize: {d}", .{given_bits});
}
- var result = try func.intcast(operand, given_ty, wanted_ty);
+ var result = try cg.intcast(operand, given_ty, wanted_ty);
const wanted_bits = @as(u16, @intCast(wanted_ty.bitSize(zcu)));
const wasm_bits = toWasmBits(wanted_bits).?;
if (wasm_bits != wanted_bits) {
- result = try func.wrapOperand(result, wanted_ty);
+ result = try cg.wrapOperand(result, wanted_ty);
}
return result;
}
-fn airIntFromBool(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
- const result = func.reuseOperand(un_op, operand);
+fn airIntFromBool(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
+ const result = cg.reuseOperand(un_op, operand);
- return func.finishAir(inst, result, &.{un_op});
+ return cg.finishAir(inst, result, &.{un_op});
}
-fn airArrayToSlice(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airArrayToSlice(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const array_ty = func.typeOf(ty_op.operand).childType(zcu);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const array_ty = cg.typeOf(ty_op.operand).childType(zcu);
const slice_ty = ty_op.ty.toType();
// create a slice on the stack
- const slice_local = try func.allocStack(slice_ty);
+ const slice_local = try cg.allocStack(slice_ty);
// store the array ptr in the slice
if (array_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- try func.store(slice_local, operand, Type.usize, 0);
+ try cg.store(slice_local, operand, Type.usize, 0);
}
// store the length of the array in the slice
const array_len: u32 = @intCast(array_ty.arrayLen(zcu));
- try func.store(slice_local, .{ .imm32 = array_len }, Type.usize, func.ptrSize());
+ try cg.store(slice_local, .{ .imm32 = array_len }, Type.usize, cg.ptrSize());
- return func.finishAir(inst, slice_local, &.{ty_op.operand});
+ return cg.finishAir(inst, slice_local, &.{ty_op.operand});
}
-fn airIntFromPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airIntFromPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
- const ptr_ty = func.typeOf(un_op);
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
+ const ptr_ty = cg.typeOf(un_op);
const result = if (ptr_ty.isSlice(zcu))
- try func.slicePtr(operand)
+ try cg.slicePtr(operand)
else switch (operand) {
// for stack offset, return a pointer to this offset.
- .stack_offset => try func.buildPointerOffset(operand, 0, .new),
- else => func.reuseOperand(un_op, operand),
+ .stack_offset => try cg.buildPointerOffset(operand, 0, .new),
+ else => cg.reuseOperand(un_op, operand),
};
- return func.finishAir(inst, result, &.{un_op});
+ return cg.finishAir(inst, result, &.{un_op});
}
-fn airPtrElemVal(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airPtrElemVal(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const ptr_ty = func.typeOf(bin_op.lhs);
- const ptr = try func.resolveInst(bin_op.lhs);
- const index = try func.resolveInst(bin_op.rhs);
+ const ptr_ty = cg.typeOf(bin_op.lhs);
+ const ptr = try cg.resolveInst(bin_op.lhs);
+ const index = try cg.resolveInst(bin_op.rhs);
const elem_ty = ptr_ty.childType(zcu);
const elem_size = elem_ty.abiSize(zcu);
// load pointer onto the stack
if (ptr_ty.isSlice(zcu)) {
- _ = try func.load(ptr, Type.usize, 0);
+ _ = try cg.load(ptr, Type.usize, 0);
} else {
- try func.lowerToStack(ptr);
+ try cg.lowerToStack(ptr);
}
// calculate index into slice
- try func.emitWValue(index);
- try func.addImm32(@intCast(elem_size));
- try func.addTag(.i32_mul);
- try func.addTag(.i32_add);
+ try cg.emitWValue(index);
+ try cg.addImm32(@intCast(elem_size));
+ try cg.addTag(.i32_mul);
+ try cg.addTag(.i32_add);
- const elem_result = if (isByRef(elem_ty, pt, func.target))
+ const elem_result = if (isByRef(elem_ty, pt, cg.target))
.stack
else
- try func.load(.stack, elem_ty, 0);
+ try cg.load(.stack, elem_ty, 0);
- return func.finishAir(inst, elem_result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, elem_result, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airPtrElemPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airPtrElemPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const bin_op = func.air.extraData(Air.Bin, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const bin_op = cg.air.extraData(Air.Bin, ty_pl.payload).data;
- const ptr_ty = func.typeOf(bin_op.lhs);
+ const ptr_ty = cg.typeOf(bin_op.lhs);
const elem_ty = ty_pl.ty.toType().childType(zcu);
const elem_size = elem_ty.abiSize(zcu);
- const ptr = try func.resolveInst(bin_op.lhs);
- const index = try func.resolveInst(bin_op.rhs);
+ const ptr = try cg.resolveInst(bin_op.lhs);
+ const index = try cg.resolveInst(bin_op.rhs);
// load pointer onto the stack
if (ptr_ty.isSlice(zcu)) {
- _ = try func.load(ptr, Type.usize, 0);
+ _ = try cg.load(ptr, Type.usize, 0);
} else {
- try func.lowerToStack(ptr);
+ try cg.lowerToStack(ptr);
}
// calculate index into ptr
- try func.emitWValue(index);
- try func.addImm32(@intCast(elem_size));
- try func.addTag(.i32_mul);
- try func.addTag(.i32_add);
+ try cg.emitWValue(index);
+ try cg.addImm32(@intCast(elem_size));
+ try cg.addTag(.i32_mul);
+ try cg.addTag(.i32_add);
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airPtrBinOp(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
- const pt = func.pt;
+fn airPtrBinOp(cg: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const bin_op = func.air.extraData(Air.Bin, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const bin_op = cg.air.extraData(Air.Bin, ty_pl.payload).data;
- const ptr = try func.resolveInst(bin_op.lhs);
- const offset = try func.resolveInst(bin_op.rhs);
- const ptr_ty = func.typeOf(bin_op.lhs);
+ const ptr = try cg.resolveInst(bin_op.lhs);
+ const offset = try cg.resolveInst(bin_op.rhs);
+ const ptr_ty = cg.typeOf(bin_op.lhs);
const pointee_ty = switch (ptr_ty.ptrSize(zcu)) {
.One => ptr_ty.childType(zcu).childType(zcu), // ptr to array, so get array element type
else => ptr_ty.childType(zcu),
};
- const valtype = typeToValtype(Type.usize, pt, func.target);
+ const valtype = typeToValtype(Type.usize, pt, cg.target);
const mul_opcode = buildOpcode(.{ .valtype1 = valtype, .op = .mul });
const bin_opcode = buildOpcode(.{ .valtype1 = valtype, .op = op });
- try func.lowerToStack(ptr);
- try func.emitWValue(offset);
- try func.addImm32(@intCast(pointee_ty.abiSize(zcu)));
- try func.addTag(Mir.Inst.Tag.fromOpcode(mul_opcode));
- try func.addTag(Mir.Inst.Tag.fromOpcode(bin_opcode));
+ try cg.lowerToStack(ptr);
+ try cg.emitWValue(offset);
+ try cg.addImm32(@intCast(pointee_ty.abiSize(zcu)));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(mul_opcode));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(bin_opcode));
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airMemset(func: *CodeGen, inst: Air.Inst.Index, safety: bool) InnerError!void {
- const pt = func.pt;
+fn airMemset(cg: *CodeGen, inst: Air.Inst.Index, safety: bool) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
if (safety) {
// TODO if the value is undef, write 0xaa bytes to dest
} else {
// TODO if the value is undef, don't lower this instruction
}
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const ptr = try func.resolveInst(bin_op.lhs);
- const ptr_ty = func.typeOf(bin_op.lhs);
- const value = try func.resolveInst(bin_op.rhs);
+ const ptr = try cg.resolveInst(bin_op.lhs);
+ const ptr_ty = cg.typeOf(bin_op.lhs);
+ const value = try cg.resolveInst(bin_op.rhs);
const len = switch (ptr_ty.ptrSize(zcu)) {
- .Slice => try func.sliceLen(ptr),
+ .Slice => try cg.sliceLen(ptr),
.One => @as(WValue, .{ .imm32 = @as(u32, @intCast(ptr_ty.childType(zcu).arrayLen(zcu))) }),
.C, .Many => unreachable,
};
@@ -4829,27 +4827,27 @@ fn airMemset(func: *CodeGen, inst: Air.Inst.Index, safety: bool) InnerError!void
else
ptr_ty.childType(zcu);
- const dst_ptr = try func.sliceOrArrayPtr(ptr, ptr_ty);
- try func.memset(elem_ty, dst_ptr, len, value);
+ const dst_ptr = try cg.sliceOrArrayPtr(ptr, ptr_ty);
+ try cg.memset(elem_ty, dst_ptr, len, value);
- return func.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
}
/// Sets a region of memory at `ptr` to the value of `value`
/// When the user has enabled the bulk_memory feature, we lower
/// this to wasm's memset instruction. When the feature is not present,
/// we implement it manually.
-fn memset(func: *CodeGen, elem_ty: Type, ptr: WValue, len: WValue, value: WValue) InnerError!void {
- const pt = func.pt;
+fn memset(cg: *CodeGen, elem_ty: Type, ptr: WValue, len: WValue, value: WValue) InnerError!void {
+ const pt = cg.pt;
const abi_size = @as(u32, @intCast(elem_ty.abiSize(pt.zcu)));
// When bulk_memory is enabled, we lower it to wasm's memset instruction.
// If not, we lower it ourselves.
- if (std.Target.wasm.featureSetHas(func.target.cpu.features, .bulk_memory) and abi_size == 1) {
- try func.lowerToStack(ptr);
- try func.emitWValue(value);
- try func.emitWValue(len);
- try func.addExtended(.memory_fill);
+ if (std.Target.wasm.featureSetHas(cg.target.cpu.features, .bulk_memory) and abi_size == 1) {
+ try cg.lowerToStack(ptr);
+ try cg.emitWValue(value);
+ try cg.emitWValue(len);
+ try cg.addExtended(.memory_fill);
return;
}
@@ -4857,90 +4855,90 @@ fn memset(func: *CodeGen, elem_ty: Type, ptr: WValue, len: WValue, value: WValue
.imm32 => |val| .{ .imm32 = val * abi_size },
.imm64 => |val| .{ .imm64 = val * abi_size },
else => if (abi_size != 1) blk: {
- const new_len = try func.ensureAllocLocal(Type.usize);
- try func.emitWValue(len);
- switch (func.ptr_size) {
+ const new_len = try cg.ensureAllocLocal(Type.usize);
+ try cg.emitWValue(len);
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.emitWValue(.{ .imm32 = abi_size });
- try func.addTag(.i32_mul);
+ try cg.emitWValue(.{ .imm32 = abi_size });
+ try cg.addTag(.i32_mul);
},
.wasm64 => {
- try func.emitWValue(.{ .imm64 = abi_size });
- try func.addTag(.i64_mul);
+ try cg.emitWValue(.{ .imm64 = abi_size });
+ try cg.addTag(.i64_mul);
},
}
- try func.addLabel(.local_set, new_len.local.value);
+ try cg.addLabel(.local_set, new_len.local.value);
break :blk new_len;
} else len,
};
- var end_ptr = try func.allocLocal(Type.usize);
- defer end_ptr.free(func);
- var new_ptr = try func.buildPointerOffset(ptr, 0, .new);
- defer new_ptr.free(func);
+ var end_ptr = try cg.allocLocal(Type.usize);
+ defer end_ptr.free(cg);
+ var new_ptr = try cg.buildPointerOffset(ptr, 0, .new);
+ defer new_ptr.free(cg);
// get the loop conditional: if current pointer address equals final pointer's address
- try func.lowerToStack(ptr);
- try func.emitWValue(final_len);
- switch (func.ptr_size) {
- .wasm32 => try func.addTag(.i32_add),
- .wasm64 => try func.addTag(.i64_add),
+ try cg.lowerToStack(ptr);
+ try cg.emitWValue(final_len);
+ switch (cg.ptr_size) {
+ .wasm32 => try cg.addTag(.i32_add),
+ .wasm64 => try cg.addTag(.i64_add),
}
- try func.addLabel(.local_set, end_ptr.local.value);
+ try cg.addLabel(.local_set, end_ptr.local.value);
// outer block to jump to when loop is done
- try func.startBlock(.block, std.wasm.block_empty);
- try func.startBlock(.loop, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.loop, std.wasm.block_empty);
// check for condition for loop end
- try func.emitWValue(new_ptr);
- try func.emitWValue(end_ptr);
- switch (func.ptr_size) {
- .wasm32 => try func.addTag(.i32_eq),
- .wasm64 => try func.addTag(.i64_eq),
+ try cg.emitWValue(new_ptr);
+ try cg.emitWValue(end_ptr);
+ switch (cg.ptr_size) {
+ .wasm32 => try cg.addTag(.i32_eq),
+ .wasm64 => try cg.addTag(.i64_eq),
}
- try func.addLabel(.br_if, 1); // jump out of loop into outer block (finished)
+ try cg.addLabel(.br_if, 1); // jump out of loop into outer block (finished)
// store the value at the current position of the pointer
- try func.store(new_ptr, value, elem_ty, 0);
+ try cg.store(new_ptr, value, elem_ty, 0);
// move the pointer to the next element
- try func.emitWValue(new_ptr);
- switch (func.ptr_size) {
+ try cg.emitWValue(new_ptr);
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.emitWValue(.{ .imm32 = abi_size });
- try func.addTag(.i32_add);
+ try cg.emitWValue(.{ .imm32 = abi_size });
+ try cg.addTag(.i32_add);
},
.wasm64 => {
- try func.emitWValue(.{ .imm64 = abi_size });
- try func.addTag(.i64_add);
+ try cg.emitWValue(.{ .imm64 = abi_size });
+ try cg.addTag(.i64_add);
},
}
- try func.addLabel(.local_set, new_ptr.local.value);
+ try cg.addLabel(.local_set, new_ptr.local.value);
// end of loop
- try func.addLabel(.br, 0); // jump to start of loop
- try func.endBlock();
- try func.endBlock();
+ try cg.addLabel(.br, 0); // jump to start of loop
+ try cg.endBlock();
+ try cg.endBlock();
}
-fn airArrayElemVal(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airArrayElemVal(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const array_ty = func.typeOf(bin_op.lhs);
- const array = try func.resolveInst(bin_op.lhs);
- const index = try func.resolveInst(bin_op.rhs);
+ const array_ty = cg.typeOf(bin_op.lhs);
+ const array = try cg.resolveInst(bin_op.lhs);
+ const index = try cg.resolveInst(bin_op.rhs);
const elem_ty = array_ty.childType(zcu);
const elem_size = elem_ty.abiSize(zcu);
- if (isByRef(array_ty, pt, func.target)) {
- try func.lowerToStack(array);
- try func.emitWValue(index);
- try func.addImm32(@intCast(elem_size));
- try func.addTag(.i32_mul);
- try func.addTag(.i32_add);
+ if (isByRef(array_ty, pt, cg.target)) {
+ try cg.lowerToStack(array);
+ try cg.emitWValue(index);
+ try cg.addImm32(@intCast(elem_size));
+ try cg.addTag(.i32_mul);
+ try cg.addTag(.i32_add);
} else {
assert(array_ty.zigTypeTag(zcu) == .vector);
@@ -4956,50 +4954,50 @@ fn airArrayElemVal(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
var operands = [_]u32{ @intFromEnum(opcode), @as(u8, @intCast(lane)) };
- try func.emitWValue(array);
+ try cg.emitWValue(array);
- const extra_index = @as(u32, @intCast(func.mir_extra.items.len));
- try func.mir_extra.appendSlice(func.gpa, &operands);
- try func.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
+ const extra_index = @as(u32, @intCast(cg.mir_extra.items.len));
+ try cg.mir_extra.appendSlice(cg.gpa, &operands);
+ try cg.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
},
else => {
- const stack_vec = try func.allocStack(array_ty);
- try func.store(stack_vec, array, array_ty, 0);
+ const stack_vec = try cg.allocStack(array_ty);
+ try cg.store(stack_vec, array, array_ty, 0);
// Is a non-unrolled vector (v128)
- try func.lowerToStack(stack_vec);
- try func.emitWValue(index);
- try func.addImm32(@intCast(elem_size));
- try func.addTag(.i32_mul);
- try func.addTag(.i32_add);
+ try cg.lowerToStack(stack_vec);
+ try cg.emitWValue(index);
+ try cg.addImm32(@intCast(elem_size));
+ try cg.addTag(.i32_mul);
+ try cg.addTag(.i32_add);
},
}
}
- const elem_result = if (isByRef(elem_ty, pt, func.target))
+ const elem_result = if (isByRef(elem_ty, pt, cg.target))
.stack
else
- try func.load(.stack, elem_ty, 0);
+ try cg.load(.stack, elem_ty, 0);
- return func.finishAir(inst, elem_result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, elem_result, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airIntFromFloat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airIntFromFloat(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const op_ty = func.typeOf(ty_op.operand);
- const op_bits = op_ty.floatBits(func.target.*);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const op_ty = cg.typeOf(ty_op.operand);
+ const op_bits = op_ty.floatBits(cg.target.*);
- const dest_ty = func.typeOfIndex(inst);
+ const dest_ty = cg.typeOfIndex(inst);
const dest_info = dest_ty.intInfo(zcu);
if (dest_info.bits > 128) {
- return func.fail("TODO: intFromFloat for integers/floats with bitsize {}", .{dest_info.bits});
+ return cg.fail("TODO: intFromFloat for integers/floats with bitsize {}", .{dest_info.bits});
}
if ((op_bits != 32 and op_bits != 64) or dest_info.bits > 64) {
@@ -5015,36 +5013,36 @@ fn airIntFromFloat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
target_util.compilerRtIntAbbrev(dest_bitsize),
}) catch unreachable;
- const result = try func.callIntrinsic(fn_name, &.{op_ty.ip_index}, dest_ty, &.{operand});
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const result = try cg.callIntrinsic(fn_name, &.{op_ty.ip_index}, dest_ty, &.{operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
const op = buildOpcode(.{
.op = .trunc,
- .valtype1 = typeToValtype(dest_ty, pt, func.target),
- .valtype2 = typeToValtype(op_ty, pt, func.target),
+ .valtype1 = typeToValtype(dest_ty, pt, cg.target),
+ .valtype2 = typeToValtype(op_ty, pt, cg.target),
.signedness = dest_info.signedness,
});
- try func.addTag(Mir.Inst.Tag.fromOpcode(op));
- const result = try func.wrapOperand(.stack, dest_ty);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(op));
+ const result = try cg.wrapOperand(.stack, dest_ty);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airFloatFromInt(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airFloatFromInt(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const op_ty = func.typeOf(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const op_ty = cg.typeOf(ty_op.operand);
const op_info = op_ty.intInfo(zcu);
- const dest_ty = func.typeOfIndex(inst);
- const dest_bits = dest_ty.floatBits(func.target.*);
+ const dest_ty = cg.typeOfIndex(inst);
+ const dest_bits = dest_ty.floatBits(cg.target.*);
if (op_info.bits > 128) {
- return func.fail("TODO: floatFromInt for integers/floats with bitsize {d} bits", .{op_info.bits});
+ return cg.fail("TODO: floatFromInt for integers/floats with bitsize {d} bits", .{op_info.bits});
}
if (op_info.bits > 64 or (dest_bits > 64 or dest_bits < 32)) {
@@ -5060,31 +5058,31 @@ fn airFloatFromInt(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
target_util.compilerRtFloatAbbrev(dest_bits),
}) catch unreachable;
- const result = try func.callIntrinsic(fn_name, &.{op_ty.ip_index}, dest_ty, &.{operand});
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const result = try cg.callIntrinsic(fn_name, &.{op_ty.ip_index}, dest_ty, &.{operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
const op = buildOpcode(.{
.op = .convert,
- .valtype1 = typeToValtype(dest_ty, pt, func.target),
- .valtype2 = typeToValtype(op_ty, pt, func.target),
+ .valtype1 = typeToValtype(dest_ty, pt, cg.target),
+ .valtype2 = typeToValtype(op_ty, pt, cg.target),
.signedness = op_info.signedness,
});
- try func.addTag(Mir.Inst.Tag.fromOpcode(op));
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(op));
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
}
-fn airSplat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airSplat(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const ty = func.typeOfIndex(inst);
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const operand = try cg.resolveInst(ty_op.operand);
+ const ty = cg.typeOfIndex(inst);
const elem_ty = ty.childType(zcu);
- if (determineSimdStoreStrategy(ty, zcu, func.target) == .direct) blk: {
+ if (determineSimdStoreStrategy(ty, zcu, cg.target) == .direct) blk: {
switch (operand) {
// when the operand lives in the linear memory section, we can directly
// load and splat the value at once. Meaning we do not first have to load
@@ -5097,16 +5095,16 @@ fn airSplat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
64 => @intFromEnum(std.wasm.SimdOpcode.v128_load64_splat),
else => break :blk, // Cannot make use of simd-instructions
};
- try func.emitWValue(operand);
- const extra_index: u32 = @intCast(func.mir_extra.items.len);
+ try cg.emitWValue(operand);
+ const extra_index: u32 = @intCast(cg.mir_extra.items.len);
// stores as := opcode, offset, alignment (opcode::memarg)
- try func.mir_extra.appendSlice(func.gpa, &[_]u32{
+ try cg.mir_extra.appendSlice(cg.gpa, &[_]u32{
opcode,
operand.offset(),
@intCast(elem_ty.abiAlignment(zcu).toByteUnits().?),
});
- try func.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ try cg.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
},
.local => {
const opcode = switch (elem_ty.bitSize(zcu)) {
@@ -5116,11 +5114,11 @@ fn airSplat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
64 => if (elem_ty.isInt(zcu)) @intFromEnum(std.wasm.SimdOpcode.i64x2_splat) else @intFromEnum(std.wasm.SimdOpcode.f64x2_splat),
else => break :blk, // Cannot make use of simd-instructions
};
- try func.emitWValue(operand);
- const extra_index = @as(u32, @intCast(func.mir_extra.items.len));
- try func.mir_extra.append(func.gpa, opcode);
- try func.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ try cg.emitWValue(operand);
+ const extra_index = @as(u32, @intCast(cg.mir_extra.items.len));
+ try cg.mir_extra.append(cg.gpa, opcode);
+ try cg.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
},
else => unreachable,
}
@@ -5128,38 +5126,38 @@ fn airSplat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const elem_size = elem_ty.bitSize(zcu);
const vector_len = @as(usize, @intCast(ty.vectorLen(zcu)));
if ((!std.math.isPowerOfTwo(elem_size) or elem_size % 8 != 0) and vector_len > 1) {
- return func.fail("TODO: WebAssembly `@splat` for arbitrary element bitsize {d}", .{elem_size});
+ return cg.fail("TODO: WebAssembly `@splat` for arbitrary element bitsize {d}", .{elem_size});
}
- const result = try func.allocStack(ty);
+ const result = try cg.allocStack(ty);
const elem_byte_size = @as(u32, @intCast(elem_ty.abiSize(zcu)));
var index: usize = 0;
var offset: u32 = 0;
while (index < vector_len) : (index += 1) {
- try func.store(result, operand, elem_ty, offset);
+ try cg.store(result, operand, elem_ty, offset);
offset += elem_byte_size;
}
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airSelect(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- const operand = try func.resolveInst(pl_op.operand);
+fn airSelect(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+ const operand = try cg.resolveInst(pl_op.operand);
_ = operand;
- return func.fail("TODO: Implement wasm airSelect", .{});
+ return cg.fail("TODO: Implement wasm airSelect", .{});
}
-fn airShuffle(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airShuffle(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const inst_ty = func.typeOfIndex(inst);
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.Shuffle, ty_pl.payload).data;
+ const inst_ty = cg.typeOfIndex(inst);
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.Shuffle, ty_pl.payload).data;
- const a = try func.resolveInst(extra.a);
- const b = try func.resolveInst(extra.b);
+ const a = try cg.resolveInst(extra.a);
+ const b = try cg.resolveInst(extra.b);
const mask = Value.fromInterned(extra.mask);
const mask_len = extra.mask_len;
@@ -5167,23 +5165,23 @@ fn airShuffle(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const elem_size = child_ty.abiSize(zcu);
// TODO: One of them could be by ref; handle in loop
- if (isByRef(func.typeOf(extra.a), pt, func.target) or isByRef(inst_ty, pt, func.target)) {
- const result = try func.allocStack(inst_ty);
+ if (isByRef(cg.typeOf(extra.a), pt, cg.target) or isByRef(inst_ty, pt, cg.target)) {
+ const result = try cg.allocStack(inst_ty);
for (0..mask_len) |index| {
const value = (try mask.elemValue(pt, index)).toSignedInt(zcu);
- try func.emitWValue(result);
+ try cg.emitWValue(result);
const loaded = if (value >= 0)
- try func.load(a, child_ty, @as(u32, @intCast(@as(i64, @intCast(elem_size)) * value)))
+ try cg.load(a, child_ty, @as(u32, @intCast(@as(i64, @intCast(elem_size)) * value)))
else
- try func.load(b, child_ty, @as(u32, @intCast(@as(i64, @intCast(elem_size)) * ~value)));
+ try cg.load(b, child_ty, @as(u32, @intCast(@as(i64, @intCast(elem_size)) * ~value)));
- try func.store(.stack, loaded, child_ty, result.stack_offset.value + @as(u32, @intCast(elem_size)) * @as(u32, @intCast(index)));
+ try cg.store(.stack, loaded, child_ty, result.stack_offset.value + @as(u32, @intCast(elem_size)) * @as(u32, @intCast(index)));
}
- return func.finishAir(inst, result, &.{ extra.a, extra.b });
+ return cg.finishAir(inst, result, &.{ extra.a, extra.b });
} else {
var operands = [_]u32{
@intFromEnum(std.wasm.SimdOpcode.i8x16_shuffle),
@@ -5202,91 +5200,91 @@ fn airShuffle(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}
}
- try func.emitWValue(a);
- try func.emitWValue(b);
+ try cg.emitWValue(a);
+ try cg.emitWValue(b);
- const extra_index = @as(u32, @intCast(func.mir_extra.items.len));
- try func.mir_extra.appendSlice(func.gpa, &operands);
- try func.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
+ const extra_index = @as(u32, @intCast(cg.mir_extra.items.len));
+ try cg.mir_extra.appendSlice(cg.gpa, &operands);
+ try cg.addInst(.{ .tag = .simd_prefix, .data = .{ .payload = extra_index } });
- return func.finishAir(inst, .stack, &.{ extra.a, extra.b });
+ return cg.finishAir(inst, .stack, &.{ extra.a, extra.b });
}
}
-fn airReduce(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const reduce = func.air.instructions.items(.data)[@intFromEnum(inst)].reduce;
- const operand = try func.resolveInst(reduce.operand);
+fn airReduce(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const reduce = cg.air.instructions.items(.data)[@intFromEnum(inst)].reduce;
+ const operand = try cg.resolveInst(reduce.operand);
_ = operand;
- return func.fail("TODO: Implement wasm airReduce", .{});
+ return cg.fail("TODO: Implement wasm airReduce", .{});
}
-fn airAggregateInit(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airAggregateInit(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const result_ty = func.typeOfIndex(inst);
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const result_ty = cg.typeOfIndex(inst);
const len = @as(usize, @intCast(result_ty.arrayLen(zcu)));
- const elements = @as([]const Air.Inst.Ref, @ptrCast(func.air.extra[ty_pl.payload..][0..len]));
+ const elements = @as([]const Air.Inst.Ref, @ptrCast(cg.air.extra[ty_pl.payload..][0..len]));
const result: WValue = result_value: {
switch (result_ty.zigTypeTag(zcu)) {
.array => {
- const result = try func.allocStack(result_ty);
+ const result = try cg.allocStack(result_ty);
const elem_ty = result_ty.childType(zcu);
const elem_size = @as(u32, @intCast(elem_ty.abiSize(zcu)));
const sentinel = if (result_ty.sentinel(zcu)) |sent| blk: {
- break :blk try func.lowerConstant(sent, elem_ty);
+ break :blk try cg.lowerConstant(sent, elem_ty);
} else null;
// When the element type is by reference, we must copy the entire
// value. It is therefore safer to move the offset pointer and store
// each value individually, instead of using store offsets.
- if (isByRef(elem_ty, pt, func.target)) {
+ if (isByRef(elem_ty, pt, cg.target)) {
// copy stack pointer into a temporary local, which is
// moved for each element to store each value in the right position.
- const offset = try func.buildPointerOffset(result, 0, .new);
+ const offset = try cg.buildPointerOffset(result, 0, .new);
for (elements, 0..) |elem, elem_index| {
- const elem_val = try func.resolveInst(elem);
- try func.store(offset, elem_val, elem_ty, 0);
+ const elem_val = try cg.resolveInst(elem);
+ try cg.store(offset, elem_val, elem_ty, 0);
if (elem_index < elements.len - 1 and sentinel == null) {
- _ = try func.buildPointerOffset(offset, elem_size, .modify);
+ _ = try cg.buildPointerOffset(offset, elem_size, .modify);
}
}
if (sentinel) |sent| {
- try func.store(offset, sent, elem_ty, 0);
+ try cg.store(offset, sent, elem_ty, 0);
}
} else {
var offset: u32 = 0;
for (elements) |elem| {
- const elem_val = try func.resolveInst(elem);
- try func.store(result, elem_val, elem_ty, offset);
+ const elem_val = try cg.resolveInst(elem);
+ try cg.store(result, elem_val, elem_ty, offset);
offset += elem_size;
}
if (sentinel) |sent| {
- try func.store(result, sent, elem_ty, offset);
+ try cg.store(result, sent, elem_ty, offset);
}
}
break :result_value result;
},
.@"struct" => switch (result_ty.containerLayout(zcu)) {
.@"packed" => {
- if (isByRef(result_ty, pt, func.target)) {
- return func.fail("TODO: airAggregateInit for packed structs larger than 64 bits", .{});
+ if (isByRef(result_ty, pt, cg.target)) {
+ return cg.fail("TODO: airAggregateInit for packed structs larger than 64 bits", .{});
}
const packed_struct = zcu.typeToPackedStruct(result_ty).?;
const field_types = packed_struct.field_types;
const backing_type = Type.fromInterned(packed_struct.backingIntTypeUnordered(ip));
// ensure the result is zero'd
- const result = try func.allocLocal(backing_type);
+ const result = try cg.allocLocal(backing_type);
if (backing_type.bitSize(zcu) <= 32)
- try func.addImm32(0)
+ try cg.addImm32(0)
else
- try func.addImm64(0);
- try func.addLabel(.local_set, result.local.value);
+ try cg.addImm64(0);
+ try cg.addLabel(.local_set, result.local.value);
var current_bit: u16 = 0;
for (elements, 0..) |elem, elem_index| {
@@ -5298,46 +5296,46 @@ fn airAggregateInit(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
else
.{ .imm64 = current_bit };
- const value = try func.resolveInst(elem);
+ const value = try cg.resolveInst(elem);
const value_bit_size: u16 = @intCast(field_ty.bitSize(zcu));
const int_ty = try pt.intType(.unsigned, value_bit_size);
// load our current result on stack so we can perform all transformations
// using only stack values. Saving the cost of loads and stores.
- try func.emitWValue(result);
- const bitcasted = try func.bitcast(int_ty, field_ty, value);
- const extended_val = try func.intcast(bitcasted, int_ty, backing_type);
+ try cg.emitWValue(result);
+ const bitcasted = try cg.bitcast(int_ty, field_ty, value);
+ const extended_val = try cg.intcast(bitcasted, int_ty, backing_type);
// no need to shift any values when the current offset is 0
const shifted = if (current_bit != 0) shifted: {
- break :shifted try func.binOp(extended_val, shift_val, backing_type, .shl);
+ break :shifted try cg.binOp(extended_val, shift_val, backing_type, .shl);
} else extended_val;
// we ignore the result as we keep it on the stack to assign it directly to `result`
- _ = try func.binOp(.stack, shifted, backing_type, .@"or");
- try func.addLabel(.local_set, result.local.value);
+ _ = try cg.binOp(.stack, shifted, backing_type, .@"or");
+ try cg.addLabel(.local_set, result.local.value);
current_bit += value_bit_size;
}
break :result_value result;
},
else => {
- const result = try func.allocStack(result_ty);
- const offset = try func.buildPointerOffset(result, 0, .new); // pointer to offset
+ const result = try cg.allocStack(result_ty);
+ const offset = try cg.buildPointerOffset(result, 0, .new); // pointer to offset
var prev_field_offset: u64 = 0;
for (elements, 0..) |elem, elem_index| {
if (try result_ty.structFieldValueComptime(pt, elem_index) != null) continue;
const elem_ty = result_ty.fieldType(elem_index, zcu);
const field_offset = result_ty.structFieldOffset(elem_index, zcu);
- _ = try func.buildPointerOffset(offset, @intCast(field_offset - prev_field_offset), .modify);
+ _ = try cg.buildPointerOffset(offset, @intCast(field_offset - prev_field_offset), .modify);
prev_field_offset = field_offset;
- const value = try func.resolveInst(elem);
- try func.store(offset, value, elem_ty, 0);
+ const value = try cg.resolveInst(elem);
+ try cg.store(offset, value, elem_ty, 0);
}
break :result_value result;
},
},
- .vector => return func.fail("TODO: Wasm backend: implement airAggregateInit for vectors", .{}),
+ .vector => return cg.fail("TODO: Wasm backend: implement airAggregateInit for vectors", .{}),
else => unreachable,
}
};
@@ -5345,22 +5343,22 @@ fn airAggregateInit(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
if (elements.len <= Liveness.bpi - 1) {
var buf = [1]Air.Inst.Ref{.none} ** (Liveness.bpi - 1);
@memcpy(buf[0..elements.len], elements);
- return func.finishAir(inst, result, &buf);
+ return cg.finishAir(inst, result, &buf);
}
- var bt = try func.iterateBigTomb(inst, elements.len);
+ var bt = try cg.iterateBigTomb(inst, elements.len);
for (elements) |arg| bt.feed(arg);
return bt.finishAir(result);
}
-fn airUnionInit(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airUnionInit(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.UnionInit, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.UnionInit, ty_pl.payload).data;
const result = result: {
- const union_ty = func.typeOfIndex(inst);
+ const union_ty = cg.typeOfIndex(inst);
const layout = union_ty.unionGetLayout(zcu);
const union_obj = zcu.typeToUnion(union_ty).?;
const field_ty = Type.fromInterned(union_obj.field_types.get(ip)[extra.field_index]);
@@ -5370,34 +5368,34 @@ fn airUnionInit(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const tag_ty = union_ty.unionTagTypeHypothetical(zcu);
const enum_field_index = tag_ty.enumFieldIndex(field_name, zcu).?;
const tag_val = try pt.enumValueFieldIndex(tag_ty, enum_field_index);
- break :blk try func.lowerConstant(tag_val, tag_ty);
+ break :blk try cg.lowerConstant(tag_val, tag_ty);
};
if (layout.payload_size == 0) {
if (layout.tag_size == 0) {
break :result .none;
}
- assert(!isByRef(union_ty, pt, func.target));
+ assert(!isByRef(union_ty, pt, cg.target));
break :result tag_int;
}
- if (isByRef(union_ty, pt, func.target)) {
- const result_ptr = try func.allocStack(union_ty);
- const payload = try func.resolveInst(extra.init);
+ if (isByRef(union_ty, pt, cg.target)) {
+ const result_ptr = try cg.allocStack(union_ty);
+ const payload = try cg.resolveInst(extra.init);
if (layout.tag_align.compare(.gte, layout.payload_align)) {
- if (isByRef(field_ty, pt, func.target)) {
- const payload_ptr = try func.buildPointerOffset(result_ptr, layout.tag_size, .new);
- try func.store(payload_ptr, payload, field_ty, 0);
+ if (isByRef(field_ty, pt, cg.target)) {
+ const payload_ptr = try cg.buildPointerOffset(result_ptr, layout.tag_size, .new);
+ try cg.store(payload_ptr, payload, field_ty, 0);
} else {
- try func.store(result_ptr, payload, field_ty, @intCast(layout.tag_size));
+ try cg.store(result_ptr, payload, field_ty, @intCast(layout.tag_size));
}
if (layout.tag_size > 0) {
- try func.store(result_ptr, tag_int, Type.fromInterned(union_obj.enum_tag_ty), 0);
+ try cg.store(result_ptr, tag_int, Type.fromInterned(union_obj.enum_tag_ty), 0);
}
} else {
- try func.store(result_ptr, payload, field_ty, 0);
+ try cg.store(result_ptr, payload, field_ty, 0);
if (layout.tag_size > 0) {
- try func.store(
+ try cg.store(
result_ptr,
tag_int,
Type.fromInterned(union_obj.enum_tag_ty),
@@ -5407,46 +5405,46 @@ fn airUnionInit(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}
break :result result_ptr;
} else {
- const operand = try func.resolveInst(extra.init);
+ const operand = try cg.resolveInst(extra.init);
const union_int_type = try pt.intType(.unsigned, @as(u16, @intCast(union_ty.bitSize(zcu))));
if (field_ty.zigTypeTag(zcu) == .float) {
const int_type = try pt.intType(.unsigned, @intCast(field_ty.bitSize(zcu)));
- const bitcasted = try func.bitcast(field_ty, int_type, operand);
- break :result try func.trunc(bitcasted, int_type, union_int_type);
+ const bitcasted = try cg.bitcast(field_ty, int_type, operand);
+ break :result try cg.trunc(bitcasted, int_type, union_int_type);
} else if (field_ty.isPtrAtRuntime(zcu)) {
const int_type = try pt.intType(.unsigned, @intCast(field_ty.bitSize(zcu)));
- break :result try func.intcast(operand, int_type, union_int_type);
+ break :result try cg.intcast(operand, int_type, union_int_type);
}
- break :result try func.intcast(operand, field_ty, union_int_type);
+ break :result try cg.intcast(operand, field_ty, union_int_type);
}
};
- return func.finishAir(inst, result, &.{extra.init});
+ return cg.finishAir(inst, result, &.{extra.init});
}
-fn airPrefetch(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const prefetch = func.air.instructions.items(.data)[@intFromEnum(inst)].prefetch;
- return func.finishAir(inst, .none, &.{prefetch.ptr});
+fn airPrefetch(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const prefetch = cg.air.instructions.items(.data)[@intFromEnum(inst)].prefetch;
+ return cg.finishAir(inst, .none, &.{prefetch.ptr});
}
-fn airWasmMemorySize(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+fn airWasmMemorySize(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- try func.addLabel(.memory_size, pl_op.payload);
- return func.finishAir(inst, .stack, &.{pl_op.operand});
+ try cg.addLabel(.memory_size, pl_op.payload);
+ return cg.finishAir(inst, .stack, &.{pl_op.operand});
}
-fn airWasmMemoryGrow(func: *CodeGen, inst: Air.Inst.Index) !void {
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+fn airWasmMemoryGrow(cg: *CodeGen, inst: Air.Inst.Index) !void {
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- const operand = try func.resolveInst(pl_op.operand);
- try func.emitWValue(operand);
- try func.addLabel(.memory_grow, pl_op.payload);
- return func.finishAir(inst, .stack, &.{pl_op.operand});
+ const operand = try cg.resolveInst(pl_op.operand);
+ try cg.emitWValue(operand);
+ try cg.addLabel(.memory_grow, pl_op.payload);
+ return cg.finishAir(inst, .stack, &.{pl_op.operand});
}
-fn cmpOptionals(func: *CodeGen, lhs: WValue, rhs: WValue, operand_ty: Type, op: std.math.CompareOperator) InnerError!WValue {
- const pt = func.pt;
+fn cmpOptionals(cg: *CodeGen, lhs: WValue, rhs: WValue, operand_ty: Type, op: std.math.CompareOperator) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
assert(operand_ty.hasRuntimeBitsIgnoreComptime(zcu));
assert(op == .eq or op == .neq);
@@ -5454,91 +5452,91 @@ fn cmpOptionals(func: *CodeGen, lhs: WValue, rhs: WValue, operand_ty: Type, op:
// We store the final result in here that will be validated
// if the optional is truly equal.
- var result = try func.ensureAllocLocal(Type.i32);
- defer result.free(func);
-
- try func.startBlock(.block, std.wasm.block_empty);
- _ = try func.isNull(lhs, operand_ty, .i32_eq);
- _ = try func.isNull(rhs, operand_ty, .i32_eq);
- try func.addTag(.i32_ne); // inverse so we can exit early
- try func.addLabel(.br_if, 0);
-
- _ = try func.load(lhs, payload_ty, 0);
- _ = try func.load(rhs, payload_ty, 0);
- const opcode = buildOpcode(.{ .op = .ne, .valtype1 = typeToValtype(payload_ty, pt, func.target) });
- try func.addTag(Mir.Inst.Tag.fromOpcode(opcode));
- try func.addLabel(.br_if, 0);
-
- try func.addImm32(1);
- try func.addLabel(.local_set, result.local.value);
- try func.endBlock();
-
- try func.emitWValue(result);
- try func.addImm32(0);
- try func.addTag(if (op == .eq) .i32_ne else .i32_eq);
+ var result = try cg.ensureAllocLocal(Type.i32);
+ defer result.free(cg);
+
+ try cg.startBlock(.block, std.wasm.block_empty);
+ _ = try cg.isNull(lhs, operand_ty, .i32_eq);
+ _ = try cg.isNull(rhs, operand_ty, .i32_eq);
+ try cg.addTag(.i32_ne); // inverse so we can exit early
+ try cg.addLabel(.br_if, 0);
+
+ _ = try cg.load(lhs, payload_ty, 0);
+ _ = try cg.load(rhs, payload_ty, 0);
+ const opcode = buildOpcode(.{ .op = .ne, .valtype1 = typeToValtype(payload_ty, pt, cg.target) });
+ try cg.addTag(Mir.Inst.Tag.fromOpcode(opcode));
+ try cg.addLabel(.br_if, 0);
+
+ try cg.addImm32(1);
+ try cg.addLabel(.local_set, result.local.value);
+ try cg.endBlock();
+
+ try cg.emitWValue(result);
+ try cg.addImm32(0);
+ try cg.addTag(if (op == .eq) .i32_ne else .i32_eq);
return .stack;
}
/// Compares big integers by checking both its high bits and low bits.
/// NOTE: Leaves the result of the comparison on top of the stack.
/// TODO: Lower this to compiler_rt call when bitsize > 128
-fn cmpBigInt(func: *CodeGen, lhs: WValue, rhs: WValue, operand_ty: Type, op: std.math.CompareOperator) InnerError!WValue {
- const pt = func.pt;
+fn cmpBigInt(cg: *CodeGen, lhs: WValue, rhs: WValue, operand_ty: Type, op: std.math.CompareOperator) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
assert(operand_ty.abiSize(zcu) >= 16);
assert(!(lhs != .stack and rhs == .stack));
if (operand_ty.bitSize(zcu) > 128) {
- return func.fail("TODO: Support cmpBigInt for integer bitsize: '{d}'", .{operand_ty.bitSize(zcu)});
+ return cg.fail("TODO: Support cmpBigInt for integer bitsize: '{d}'", .{operand_ty.bitSize(zcu)});
}
- var lhs_msb = try (try func.load(lhs, Type.u64, 8)).toLocal(func, Type.u64);
- defer lhs_msb.free(func);
- var rhs_msb = try (try func.load(rhs, Type.u64, 8)).toLocal(func, Type.u64);
- defer rhs_msb.free(func);
+ var lhs_msb = try (try cg.load(lhs, Type.u64, 8)).toLocal(cg, Type.u64);
+ defer lhs_msb.free(cg);
+ var rhs_msb = try (try cg.load(rhs, Type.u64, 8)).toLocal(cg, Type.u64);
+ defer rhs_msb.free(cg);
switch (op) {
.eq, .neq => {
- const xor_high = try func.binOp(lhs_msb, rhs_msb, Type.u64, .xor);
- const lhs_lsb = try func.load(lhs, Type.u64, 0);
- const rhs_lsb = try func.load(rhs, Type.u64, 0);
- const xor_low = try func.binOp(lhs_lsb, rhs_lsb, Type.u64, .xor);
- const or_result = try func.binOp(xor_high, xor_low, Type.u64, .@"or");
+ const xor_high = try cg.binOp(lhs_msb, rhs_msb, Type.u64, .xor);
+ const lhs_lsb = try cg.load(lhs, Type.u64, 0);
+ const rhs_lsb = try cg.load(rhs, Type.u64, 0);
+ const xor_low = try cg.binOp(lhs_lsb, rhs_lsb, Type.u64, .xor);
+ const or_result = try cg.binOp(xor_high, xor_low, Type.u64, .@"or");
switch (op) {
- .eq => return func.cmp(or_result, .{ .imm64 = 0 }, Type.u64, .eq),
- .neq => return func.cmp(or_result, .{ .imm64 = 0 }, Type.u64, .neq),
+ .eq => return cg.cmp(or_result, .{ .imm64 = 0 }, Type.u64, .eq),
+ .neq => return cg.cmp(or_result, .{ .imm64 = 0 }, Type.u64, .neq),
else => unreachable,
}
},
else => {
const ty = if (operand_ty.isSignedInt(zcu)) Type.i64 else Type.u64;
// leave those value on top of the stack for '.select'
- const lhs_lsb = try func.load(lhs, Type.u64, 0);
- const rhs_lsb = try func.load(rhs, Type.u64, 0);
- _ = try func.cmp(lhs_lsb, rhs_lsb, Type.u64, op);
- _ = try func.cmp(lhs_msb, rhs_msb, ty, op);
- _ = try func.cmp(lhs_msb, rhs_msb, ty, .eq);
- try func.addTag(.select);
+ const lhs_lsb = try cg.load(lhs, Type.u64, 0);
+ const rhs_lsb = try cg.load(rhs, Type.u64, 0);
+ _ = try cg.cmp(lhs_lsb, rhs_lsb, Type.u64, op);
+ _ = try cg.cmp(lhs_msb, rhs_msb, ty, op);
+ _ = try cg.cmp(lhs_msb, rhs_msb, ty, .eq);
+ try cg.addTag(.select);
},
}
return .stack;
}
-fn airSetUnionTag(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airSetUnionTag(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const un_ty = func.typeOf(bin_op.lhs).childType(zcu);
- const tag_ty = func.typeOf(bin_op.rhs);
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const un_ty = cg.typeOf(bin_op.lhs).childType(zcu);
+ const tag_ty = cg.typeOf(bin_op.rhs);
const layout = un_ty.unionGetLayout(zcu);
- if (layout.tag_size == 0) return func.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
+ if (layout.tag_size == 0) return cg.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
- const union_ptr = try func.resolveInst(bin_op.lhs);
- const new_tag = try func.resolveInst(bin_op.rhs);
+ const union_ptr = try cg.resolveInst(bin_op.lhs);
+ const new_tag = try cg.resolveInst(bin_op.rhs);
if (layout.payload_size == 0) {
- try func.store(union_ptr, new_tag, tag_ty, 0);
- return func.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
+ try cg.store(union_ptr, new_tag, tag_ty, 0);
+ return cg.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
}
// when the tag alignment is smaller than the payload, the field will be stored
@@ -5546,52 +5544,52 @@ fn airSetUnionTag(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const offset: u32 = if (layout.tag_align.compare(.lt, layout.payload_align)) blk: {
break :blk @intCast(layout.payload_size);
} else 0;
- try func.store(union_ptr, new_tag, tag_ty, offset);
- return func.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
+ try cg.store(union_ptr, new_tag, tag_ty, offset);
+ return cg.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airGetUnionTag(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const zcu = func.pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airGetUnionTag(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const zcu = cg.pt.zcu;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const un_ty = func.typeOf(ty_op.operand);
- const tag_ty = func.typeOfIndex(inst);
+ const un_ty = cg.typeOf(ty_op.operand);
+ const tag_ty = cg.typeOfIndex(inst);
const layout = un_ty.unionGetLayout(zcu);
- if (layout.tag_size == 0) return func.finishAir(inst, .none, &.{ty_op.operand});
+ if (layout.tag_size == 0) return cg.finishAir(inst, .none, &.{ty_op.operand});
- const operand = try func.resolveInst(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
// when the tag alignment is smaller than the payload, the field will be stored
// after the payload.
const offset: u32 = if (layout.tag_align.compare(.lt, layout.payload_align))
@intCast(layout.payload_size)
else
0;
- const result = try func.load(operand, tag_ty, offset);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const result = try cg.load(operand, tag_ty, offset);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airFpext(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airFpext(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const dest_ty = func.typeOfIndex(inst);
- const operand = try func.resolveInst(ty_op.operand);
- const result = try func.fpext(operand, func.typeOf(ty_op.operand), dest_ty);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const dest_ty = cg.typeOfIndex(inst);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const result = try cg.fpext(operand, cg.typeOf(ty_op.operand), dest_ty);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
/// Extends a float from a given `Type` to a larger wanted `Type`
/// NOTE: Leaves the result on the stack
-fn fpext(func: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!WValue {
- const given_bits = given.floatBits(func.target.*);
- const wanted_bits = wanted.floatBits(func.target.*);
+fn fpext(cg: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!WValue {
+ const given_bits = given.floatBits(cg.target.*);
+ const wanted_bits = wanted.floatBits(cg.target.*);
if (wanted_bits == 64 and given_bits == 32) {
- try func.emitWValue(operand);
- try func.addTag(.f64_promote_f32);
+ try cg.emitWValue(operand);
+ try cg.addTag(.f64_promote_f32);
return .stack;
} else if (given_bits == 16 and wanted_bits <= 64) {
// call __extendhfsf2(f16) f32
- const f32_result = try func.callIntrinsic(
+ const f32_result = try cg.callIntrinsic(
"__extendhfsf2",
&.{.f16_type},
Type.f32,
@@ -5600,7 +5598,7 @@ fn fpext(func: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!
assert(f32_result == .stack);
if (wanted_bits == 64) {
- try func.addTag(.f64_promote_f32);
+ try cg.addTag(.f64_promote_f32);
}
return .stack;
}
@@ -5611,37 +5609,37 @@ fn fpext(func: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!
target_util.compilerRtFloatAbbrev(wanted_bits),
}) catch unreachable;
- return func.callIntrinsic(fn_name, &.{given.ip_index}, wanted, &.{operand});
+ return cg.callIntrinsic(fn_name, &.{given.ip_index}, wanted, &.{operand});
}
-fn airFptrunc(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+fn airFptrunc(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const dest_ty = func.typeOfIndex(inst);
- const operand = try func.resolveInst(ty_op.operand);
- const result = try func.fptrunc(operand, func.typeOf(ty_op.operand), dest_ty);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ const dest_ty = cg.typeOfIndex(inst);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const result = try cg.fptrunc(operand, cg.typeOf(ty_op.operand), dest_ty);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
/// Truncates a float from a given `Type` to its wanted `Type`
/// NOTE: The result value remains on the stack
-fn fptrunc(func: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!WValue {
- const given_bits = given.floatBits(func.target.*);
- const wanted_bits = wanted.floatBits(func.target.*);
+fn fptrunc(cg: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerError!WValue {
+ const given_bits = given.floatBits(cg.target.*);
+ const wanted_bits = wanted.floatBits(cg.target.*);
if (wanted_bits == 32 and given_bits == 64) {
- try func.emitWValue(operand);
- try func.addTag(.f32_demote_f64);
+ try cg.emitWValue(operand);
+ try cg.addTag(.f32_demote_f64);
return .stack;
} else if (wanted_bits == 16 and given_bits <= 64) {
const op: WValue = if (given_bits == 64) blk: {
- try func.emitWValue(operand);
- try func.addTag(.f32_demote_f64);
+ try cg.emitWValue(operand);
+ try cg.addTag(.f32_demote_f64);
break :blk .stack;
} else operand;
// call __truncsfhf2(f32) f16
- return func.callIntrinsic("__truncsfhf2", &.{.f32_type}, Type.f16, &.{op});
+ return cg.callIntrinsic("__truncsfhf2", &.{.f32_type}, Type.f16, &.{op});
}
var fn_name_buf: [12]u8 = undefined;
@@ -5650,20 +5648,20 @@ fn fptrunc(func: *CodeGen, operand: WValue, given: Type, wanted: Type) InnerErro
target_util.compilerRtFloatAbbrev(wanted_bits),
}) catch unreachable;
- return func.callIntrinsic(fn_name, &.{given.ip_index}, wanted, &.{operand});
+ return cg.callIntrinsic(fn_name, &.{given.ip_index}, wanted, &.{operand});
}
-fn airErrUnionPayloadPtrSet(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airErrUnionPayloadPtrSet(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const err_set_ty = func.typeOf(ty_op.operand).childType(zcu);
+ const err_set_ty = cg.typeOf(ty_op.operand).childType(zcu);
const payload_ty = err_set_ty.errorUnionPayload(zcu);
- const operand = try func.resolveInst(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
// set error-tag to '0' to annotate error union is non-error
- try func.store(
+ try cg.store(
operand,
.{ .imm32 = 0 },
Type.anyerror,
@@ -5672,63 +5670,63 @@ fn airErrUnionPayloadPtrSet(func: *CodeGen, inst: Air.Inst.Index) InnerError!voi
const result = result: {
if (!payload_ty.hasRuntimeBitsIgnoreComptime(zcu)) {
- break :result func.reuseOperand(ty_op.operand, operand);
+ break :result cg.reuseOperand(ty_op.operand, operand);
}
- break :result try func.buildPointerOffset(operand, @as(u32, @intCast(errUnionPayloadOffset(payload_ty, zcu))), .new);
+ break :result try cg.buildPointerOffset(operand, @as(u32, @intCast(errUnionPayloadOffset(payload_ty, zcu))), .new);
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airFieldParentPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airFieldParentPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.FieldParentPtr, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.FieldParentPtr, ty_pl.payload).data;
- const field_ptr = try func.resolveInst(extra.field_ptr);
+ const field_ptr = try cg.resolveInst(extra.field_ptr);
const parent_ty = ty_pl.ty.toType().childType(zcu);
const field_offset = parent_ty.structFieldOffset(extra.field_index, zcu);
const result = if (field_offset != 0) result: {
- const base = try func.buildPointerOffset(field_ptr, 0, .new);
- try func.addLabel(.local_get, base.local.value);
- try func.addImm32(@intCast(field_offset));
- try func.addTag(.i32_sub);
- try func.addLabel(.local_set, base.local.value);
+ const base = try cg.buildPointerOffset(field_ptr, 0, .new);
+ try cg.addLabel(.local_get, base.local.value);
+ try cg.addImm32(@intCast(field_offset));
+ try cg.addTag(.i32_sub);
+ try cg.addLabel(.local_set, base.local.value);
break :result base;
- } else func.reuseOperand(extra.field_ptr, field_ptr);
+ } else cg.reuseOperand(extra.field_ptr, field_ptr);
- return func.finishAir(inst, result, &.{extra.field_ptr});
+ return cg.finishAir(inst, result, &.{extra.field_ptr});
}
-fn sliceOrArrayPtr(func: *CodeGen, ptr: WValue, ptr_ty: Type) InnerError!WValue {
- const pt = func.pt;
+fn sliceOrArrayPtr(cg: *CodeGen, ptr: WValue, ptr_ty: Type) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
if (ptr_ty.isSlice(zcu)) {
- return func.slicePtr(ptr);
+ return cg.slicePtr(ptr);
} else {
return ptr;
}
}
-fn airMemcpy(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airMemcpy(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const dst = try func.resolveInst(bin_op.lhs);
- const dst_ty = func.typeOf(bin_op.lhs);
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const dst = try cg.resolveInst(bin_op.lhs);
+ const dst_ty = cg.typeOf(bin_op.lhs);
const ptr_elem_ty = dst_ty.childType(zcu);
- const src = try func.resolveInst(bin_op.rhs);
- const src_ty = func.typeOf(bin_op.rhs);
+ const src = try cg.resolveInst(bin_op.rhs);
+ const src_ty = cg.typeOf(bin_op.rhs);
const len = switch (dst_ty.ptrSize(zcu)) {
.Slice => blk: {
- const slice_len = try func.sliceLen(dst);
+ const slice_len = try cg.sliceLen(dst);
if (ptr_elem_ty.abiSize(zcu) != 1) {
- try func.emitWValue(slice_len);
- try func.emitWValue(.{ .imm32 = @as(u32, @intCast(ptr_elem_ty.abiSize(zcu))) });
- try func.addTag(.i32_mul);
- try func.addLabel(.local_set, slice_len.local.value);
+ try cg.emitWValue(slice_len);
+ try cg.emitWValue(.{ .imm32 = @as(u32, @intCast(ptr_elem_ty.abiSize(zcu))) });
+ try cg.addTag(.i32_mul);
+ try cg.addLabel(.local_set, slice_len.local.value);
}
break :blk slice_len;
},
@@ -5737,94 +5735,94 @@ fn airMemcpy(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}),
.C, .Many => unreachable,
};
- const dst_ptr = try func.sliceOrArrayPtr(dst, dst_ty);
- const src_ptr = try func.sliceOrArrayPtr(src, src_ty);
- try func.memcpy(dst_ptr, src_ptr, len);
+ const dst_ptr = try cg.sliceOrArrayPtr(dst, dst_ty);
+ const src_ptr = try cg.sliceOrArrayPtr(src, src_ty);
+ try cg.memcpy(dst_ptr, src_ptr, len);
- return func.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airRetAddr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+fn airRetAddr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
// TODO: Implement this properly once stack serialization is solved
- return func.finishAir(inst, switch (func.ptr_size) {
+ return cg.finishAir(inst, switch (cg.ptr_size) {
.wasm32 => .{ .imm32 = 0 },
.wasm64 => .{ .imm64 = 0 },
}, &.{});
}
-fn airPopcount(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airPopcount(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const op_ty = func.typeOf(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const op_ty = cg.typeOf(ty_op.operand);
if (op_ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: Implement @popCount for vectors", .{});
+ return cg.fail("TODO: Implement @popCount for vectors", .{});
}
const int_info = op_ty.intInfo(zcu);
const bits = int_info.bits;
const wasm_bits = toWasmBits(bits) orelse {
- return func.fail("TODO: Implement @popCount for integers with bitsize '{d}'", .{bits});
+ return cg.fail("TODO: Implement @popCount for integers with bitsize '{d}'", .{bits});
};
switch (wasm_bits) {
32 => {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
if (op_ty.isSignedInt(zcu) and bits != wasm_bits) {
- _ = try func.wrapOperand(.stack, try pt.intType(.unsigned, bits));
+ _ = try cg.wrapOperand(.stack, try pt.intType(.unsigned, bits));
}
- try func.addTag(.i32_popcnt);
+ try cg.addTag(.i32_popcnt);
},
64 => {
- try func.emitWValue(operand);
+ try cg.emitWValue(operand);
if (op_ty.isSignedInt(zcu) and bits != wasm_bits) {
- _ = try func.wrapOperand(.stack, try pt.intType(.unsigned, bits));
+ _ = try cg.wrapOperand(.stack, try pt.intType(.unsigned, bits));
}
- try func.addTag(.i64_popcnt);
- try func.addTag(.i32_wrap_i64);
- try func.emitWValue(operand);
+ try cg.addTag(.i64_popcnt);
+ try cg.addTag(.i32_wrap_i64);
+ try cg.emitWValue(operand);
},
128 => {
- _ = try func.load(operand, Type.u64, 0);
- try func.addTag(.i64_popcnt);
- _ = try func.load(operand, Type.u64, 8);
+ _ = try cg.load(operand, Type.u64, 0);
+ try cg.addTag(.i64_popcnt);
+ _ = try cg.load(operand, Type.u64, 8);
if (op_ty.isSignedInt(zcu) and bits != wasm_bits) {
- _ = try func.wrapOperand(.stack, try pt.intType(.unsigned, bits - 64));
+ _ = try cg.wrapOperand(.stack, try pt.intType(.unsigned, bits - 64));
}
- try func.addTag(.i64_popcnt);
- try func.addTag(.i64_add);
- try func.addTag(.i32_wrap_i64);
+ try cg.addTag(.i64_popcnt);
+ try cg.addTag(.i64_add);
+ try cg.addTag(.i32_wrap_i64);
},
else => unreachable,
}
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
}
-fn airBitReverse(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airBitReverse(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
- const ty = func.typeOf(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
+ const ty = cg.typeOf(ty_op.operand);
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: Implement @bitReverse for vectors", .{});
+ return cg.fail("TODO: Implement @bitReverse for vectors", .{});
}
const int_info = ty.intInfo(zcu);
const bits = int_info.bits;
const wasm_bits = toWasmBits(bits) orelse {
- return func.fail("TODO: Implement @bitReverse for integers with bitsize '{d}'", .{bits});
+ return cg.fail("TODO: Implement @bitReverse for integers with bitsize '{d}'", .{bits});
};
switch (wasm_bits) {
32 => {
- const intrin_ret = try func.callIntrinsic(
+ const intrin_ret = try cg.callIntrinsic(
"__bitreversesi2",
&.{.u32_type},
Type.u32,
@@ -5833,11 +5831,11 @@ fn airBitReverse(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const result = if (bits == 32)
intrin_ret
else
- try func.binOp(intrin_ret, .{ .imm32 = 32 - bits }, ty, .shr);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ try cg.binOp(intrin_ret, .{ .imm32 = 32 - bits }, ty, .shr);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
},
64 => {
- const intrin_ret = try func.callIntrinsic(
+ const intrin_ret = try cg.callIntrinsic(
"__bitreversedi2",
&.{.u64_type},
Type.u64,
@@ -5846,64 +5844,64 @@ fn airBitReverse(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const result = if (bits == 64)
intrin_ret
else
- try func.binOp(intrin_ret, .{ .imm64 = 64 - bits }, ty, .shr);
- return func.finishAir(inst, result, &.{ty_op.operand});
+ try cg.binOp(intrin_ret, .{ .imm64 = 64 - bits }, ty, .shr);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
},
128 => {
- const result = try func.allocStack(ty);
+ const result = try cg.allocStack(ty);
- try func.emitWValue(result);
- const first_half = try func.load(operand, Type.u64, 8);
- const intrin_ret_first = try func.callIntrinsic(
+ try cg.emitWValue(result);
+ const first_half = try cg.load(operand, Type.u64, 8);
+ const intrin_ret_first = try cg.callIntrinsic(
"__bitreversedi2",
&.{.u64_type},
Type.u64,
&.{first_half},
);
- try func.emitWValue(intrin_ret_first);
+ try cg.emitWValue(intrin_ret_first);
if (bits < 128) {
- try func.emitWValue(.{ .imm64 = 128 - bits });
- try func.addTag(.i64_shr_u);
+ try cg.emitWValue(.{ .imm64 = 128 - bits });
+ try cg.addTag(.i64_shr_u);
}
- try func.emitWValue(result);
- const second_half = try func.load(operand, Type.u64, 0);
- const intrin_ret_second = try func.callIntrinsic(
+ try cg.emitWValue(result);
+ const second_half = try cg.load(operand, Type.u64, 0);
+ const intrin_ret_second = try cg.callIntrinsic(
"__bitreversedi2",
&.{.u64_type},
Type.u64,
&.{second_half},
);
- try func.emitWValue(intrin_ret_second);
+ try cg.emitWValue(intrin_ret_second);
if (bits == 128) {
- try func.store(.stack, .stack, Type.u64, result.offset() + 8);
- try func.store(.stack, .stack, Type.u64, result.offset());
+ try cg.store(.stack, .stack, Type.u64, result.offset() + 8);
+ try cg.store(.stack, .stack, Type.u64, result.offset());
} else {
- var tmp = try func.allocLocal(Type.u64);
- defer tmp.free(func);
- try func.addLabel(.local_tee, tmp.local.value);
- try func.emitWValue(.{ .imm64 = 128 - bits });
+ var tmp = try cg.allocLocal(Type.u64);
+ defer tmp.free(cg);
+ try cg.addLabel(.local_tee, tmp.local.value);
+ try cg.emitWValue(.{ .imm64 = 128 - bits });
if (ty.isSignedInt(zcu)) {
- try func.addTag(.i64_shr_s);
+ try cg.addTag(.i64_shr_s);
} else {
- try func.addTag(.i64_shr_u);
+ try cg.addTag(.i64_shr_u);
}
- try func.store(.stack, .stack, Type.u64, result.offset() + 8);
- try func.addLabel(.local_get, tmp.local.value);
- try func.emitWValue(.{ .imm64 = bits - 64 });
- try func.addTag(.i64_shl);
- try func.addTag(.i64_or);
- try func.store(.stack, .stack, Type.u64, result.offset());
+ try cg.store(.stack, .stack, Type.u64, result.offset() + 8);
+ try cg.addLabel(.local_get, tmp.local.value);
+ try cg.emitWValue(.{ .imm64 = bits - 64 });
+ try cg.addTag(.i64_shl);
+ try cg.addTag(.i64_or);
+ try cg.store(.stack, .stack, Type.u64, result.offset());
}
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
},
else => unreachable,
}
}
-fn airErrorName(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+fn airErrorName(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
+ const operand = try cg.resolveInst(un_op);
// First retrieve the symbol index to the error name table
// that will be used to emit a relocation for the pointer
// to the error name table.
@@ -5915,81 +5913,81 @@ fn airErrorName(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
//
// As the names are global and the slice elements are constant, we do not have
// to make a copy of the ptr+value but can point towards them directly.
- const pt = func.pt;
- const error_table_symbol = try func.wasm.getErrorTableSymbol(pt);
+ const pt = cg.pt;
+ const error_table_symbol = try cg.wasm.getErrorTableSymbol(pt);
const name_ty = Type.slice_const_u8_sentinel_0;
const abi_size = name_ty.abiSize(pt.zcu);
const error_name_value: WValue = .{ .memory = error_table_symbol }; // emitting this will create a relocation
- try func.emitWValue(error_name_value);
- try func.emitWValue(operand);
- switch (func.ptr_size) {
+ try cg.emitWValue(error_name_value);
+ try cg.emitWValue(operand);
+ switch (cg.ptr_size) {
.wasm32 => {
- try func.addImm32(@intCast(abi_size));
- try func.addTag(.i32_mul);
- try func.addTag(.i32_add);
+ try cg.addImm32(@intCast(abi_size));
+ try cg.addTag(.i32_mul);
+ try cg.addTag(.i32_add);
},
.wasm64 => {
- try func.addImm64(abi_size);
- try func.addTag(.i64_mul);
- try func.addTag(.i64_add);
+ try cg.addImm64(abi_size);
+ try cg.addTag(.i64_mul);
+ try cg.addTag(.i64_add);
},
}
- return func.finishAir(inst, .stack, &.{un_op});
+ return cg.finishAir(inst, .stack, &.{un_op});
}
-fn airPtrSliceFieldPtr(func: *CodeGen, inst: Air.Inst.Index, offset: u32) InnerError!void {
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const slice_ptr = try func.resolveInst(ty_op.operand);
- const result = try func.buildPointerOffset(slice_ptr, offset, .new);
- return func.finishAir(inst, result, &.{ty_op.operand});
+fn airPtrSliceFieldPtr(cg: *CodeGen, inst: Air.Inst.Index, offset: u32) InnerError!void {
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const slice_ptr = try cg.resolveInst(ty_op.operand);
+ const result = try cg.buildPointerOffset(slice_ptr, offset, .new);
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
/// NOTE: Allocates place for result on virtual stack, when integer size > 64 bits
-fn intZeroValue(func: *CodeGen, ty: Type) InnerError!WValue {
- const zcu = func.wasm.base.comp.zcu.?;
+fn intZeroValue(cg: *CodeGen, ty: Type) InnerError!WValue {
+ const zcu = cg.wasm.base.comp.zcu.?;
const int_info = ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: Implement intZeroValue for integer bitsize: {d}", .{int_info.bits});
+ return cg.fail("TODO: Implement intZeroValue for integer bitsize: {d}", .{int_info.bits});
};
switch (wasm_bits) {
32 => return .{ .imm32 = 0 },
64 => return .{ .imm64 = 0 },
128 => {
- const result = try func.allocStack(ty);
- try func.store(result, .{ .imm64 = 0 }, Type.u64, 0);
- try func.store(result, .{ .imm64 = 0 }, Type.u64, 8);
+ const result = try cg.allocStack(ty);
+ try cg.store(result, .{ .imm64 = 0 }, Type.u64, 0);
+ try cg.store(result, .{ .imm64 = 0 }, Type.u64, 8);
return result;
},
else => unreachable,
}
}
-fn airAddSubWithOverflow(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
+fn airAddSubWithOverflow(cg: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
assert(op == .add or op == .sub);
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.Bin, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.Bin, ty_pl.payload).data;
- const lhs = try func.resolveInst(extra.lhs);
- const rhs = try func.resolveInst(extra.rhs);
- const ty = func.typeOf(extra.lhs);
- const pt = func.pt;
+ const lhs = try cg.resolveInst(extra.lhs);
+ const rhs = try cg.resolveInst(extra.rhs);
+ const ty = cg.typeOf(extra.lhs);
+ const pt = cg.pt;
const zcu = pt.zcu;
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: Implement overflow arithmetic for vectors", .{});
+ return cg.fail("TODO: Implement overflow arithmetic for vectors", .{});
}
const int_info = ty.intInfo(zcu);
const is_signed = int_info.signedness == .signed;
if (int_info.bits > 128) {
- return func.fail("TODO: Implement {{add/sub}}_with_overflow for integer bitsize: {d}", .{int_info.bits});
+ return cg.fail("TODO: Implement {{add/sub}}_with_overflow for integer bitsize: {d}", .{int_info.bits});
}
- const op_result = try func.wrapBinOp(lhs, rhs, ty, op);
- var op_tmp = try op_result.toLocal(func, ty);
- defer op_tmp.free(func);
+ const op_result = try cg.wrapBinOp(lhs, rhs, ty, op);
+ var op_tmp = try op_result.toLocal(cg, ty);
+ defer op_tmp.free(cg);
const cmp_op: std.math.CompareOperator = switch (op) {
.add => .lt,
@@ -5997,40 +5995,40 @@ fn airAddSubWithOverflow(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerErro
else => unreachable,
};
const overflow_bit = if (is_signed) blk: {
- const zero = try intZeroValue(func, ty);
- const rhs_is_neg = try func.cmp(rhs, zero, ty, .lt);
- const overflow_cmp = try func.cmp(op_tmp, lhs, ty, cmp_op);
- break :blk try func.cmp(rhs_is_neg, overflow_cmp, Type.u1, .neq);
- } else try func.cmp(op_tmp, lhs, ty, cmp_op);
- var bit_tmp = try overflow_bit.toLocal(func, Type.u1);
- defer bit_tmp.free(func);
-
- const result = try func.allocStack(func.typeOfIndex(inst));
+ const zero = try intZeroValue(cg, ty);
+ const rhs_is_neg = try cg.cmp(rhs, zero, ty, .lt);
+ const overflow_cmp = try cg.cmp(op_tmp, lhs, ty, cmp_op);
+ break :blk try cg.cmp(rhs_is_neg, overflow_cmp, Type.u1, .neq);
+ } else try cg.cmp(op_tmp, lhs, ty, cmp_op);
+ var bit_tmp = try overflow_bit.toLocal(cg, Type.u1);
+ defer bit_tmp.free(cg);
+
+ const result = try cg.allocStack(cg.typeOfIndex(inst));
const offset: u32 = @intCast(ty.abiSize(zcu));
- try func.store(result, op_tmp, ty, 0);
- try func.store(result, bit_tmp, Type.u1, offset);
+ try cg.store(result, op_tmp, ty, 0);
+ try cg.store(result, bit_tmp, Type.u1, offset);
- return func.finishAir(inst, result, &.{ extra.lhs, extra.rhs });
+ return cg.finishAir(inst, result, &.{ extra.lhs, extra.rhs });
}
-fn airShlWithOverflow(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airShlWithOverflow(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.Bin, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.Bin, ty_pl.payload).data;
- const lhs = try func.resolveInst(extra.lhs);
- const rhs = try func.resolveInst(extra.rhs);
- const ty = func.typeOf(extra.lhs);
- const rhs_ty = func.typeOf(extra.rhs);
+ const lhs = try cg.resolveInst(extra.lhs);
+ const rhs = try cg.resolveInst(extra.rhs);
+ const ty = cg.typeOf(extra.lhs);
+ const rhs_ty = cg.typeOf(extra.rhs);
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: Implement overflow arithmetic for vectors", .{});
+ return cg.fail("TODO: Implement overflow arithmetic for vectors", .{});
}
const int_info = ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: Implement shl_with_overflow for integer bitsize: {d}", .{int_info.bits});
+ return cg.fail("TODO: Implement shl_with_overflow for integer bitsize: {d}", .{int_info.bits});
};
// Ensure rhs is coerced to lhs as they must have the same WebAssembly types
@@ -6038,50 +6036,50 @@ fn airShlWithOverflow(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
const rhs_wasm_bits = toWasmBits(rhs_ty.intInfo(zcu).bits).?;
// If wasm_bits == 128, compiler-rt expects i32 for shift
const rhs_final = if (wasm_bits != rhs_wasm_bits and wasm_bits == 64) blk: {
- const rhs_casted = try func.intcast(rhs, rhs_ty, ty);
- break :blk try rhs_casted.toLocal(func, ty);
+ const rhs_casted = try cg.intcast(rhs, rhs_ty, ty);
+ break :blk try rhs_casted.toLocal(cg, ty);
} else rhs;
- var shl = try (try func.wrapBinOp(lhs, rhs_final, ty, .shl)).toLocal(func, ty);
- defer shl.free(func);
+ var shl = try (try cg.wrapBinOp(lhs, rhs_final, ty, .shl)).toLocal(cg, ty);
+ defer shl.free(cg);
const overflow_bit = blk: {
- const shr = try func.binOp(shl, rhs_final, ty, .shr);
- break :blk try func.cmp(shr, lhs, ty, .neq);
+ const shr = try cg.binOp(shl, rhs_final, ty, .shr);
+ break :blk try cg.cmp(shr, lhs, ty, .neq);
};
- var overflow_local = try overflow_bit.toLocal(func, Type.u1);
- defer overflow_local.free(func);
+ var overflow_local = try overflow_bit.toLocal(cg, Type.u1);
+ defer overflow_local.free(cg);
- const result = try func.allocStack(func.typeOfIndex(inst));
+ const result = try cg.allocStack(cg.typeOfIndex(inst));
const offset: u32 = @intCast(ty.abiSize(zcu));
- try func.store(result, shl, ty, 0);
- try func.store(result, overflow_local, Type.u1, offset);
+ try cg.store(result, shl, ty, 0);
+ try cg.store(result, overflow_local, Type.u1, offset);
- return func.finishAir(inst, result, &.{ extra.lhs, extra.rhs });
+ return cg.finishAir(inst, result, &.{ extra.lhs, extra.rhs });
}
-fn airMulWithOverflow(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.Bin, ty_pl.payload).data;
+fn airMulWithOverflow(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.Bin, ty_pl.payload).data;
- const lhs = try func.resolveInst(extra.lhs);
- const rhs = try func.resolveInst(extra.rhs);
- const ty = func.typeOf(extra.lhs);
- const pt = func.pt;
+ const lhs = try cg.resolveInst(extra.lhs);
+ const rhs = try cg.resolveInst(extra.rhs);
+ const ty = cg.typeOf(extra.lhs);
+ const pt = cg.pt;
const zcu = pt.zcu;
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: Implement overflow arithmetic for vectors", .{});
+ return cg.fail("TODO: Implement overflow arithmetic for vectors", .{});
}
// We store the bit if it's overflowed or not in this. As it's zero-initialized
// we only need to update it if an overflow (or underflow) occurred.
- var overflow_bit = try func.ensureAllocLocal(Type.u1);
- defer overflow_bit.free(func);
+ var overflow_bit = try cg.ensureAllocLocal(Type.u1);
+ defer overflow_bit.free(cg);
const int_info = ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: Implement `@mulWithOverflow` for integer bitsize: {d}", .{int_info.bits});
+ return cg.fail("TODO: Implement `@mulWithOverflow` for integer bitsize: {d}", .{int_info.bits});
};
const zero: WValue = switch (wasm_bits) {
@@ -6093,248 +6091,248 @@ fn airMulWithOverflow(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
// for 32 bit integers we upcast it to a 64bit integer
const mul = if (wasm_bits == 32) blk: {
const new_ty = if (int_info.signedness == .signed) Type.i64 else Type.u64;
- const lhs_upcast = try func.intcast(lhs, ty, new_ty);
- const rhs_upcast = try func.intcast(rhs, ty, new_ty);
- const bin_op = try (try func.binOp(lhs_upcast, rhs_upcast, new_ty, .mul)).toLocal(func, new_ty);
- const res = try (try func.trunc(bin_op, ty, new_ty)).toLocal(func, ty);
- const res_upcast = try func.intcast(res, ty, new_ty);
- _ = try func.cmp(res_upcast, bin_op, new_ty, .neq);
- try func.addLabel(.local_set, overflow_bit.local.value);
+ const lhs_upcast = try cg.intcast(lhs, ty, new_ty);
+ const rhs_upcast = try cg.intcast(rhs, ty, new_ty);
+ const bin_op = try (try cg.binOp(lhs_upcast, rhs_upcast, new_ty, .mul)).toLocal(cg, new_ty);
+ const res = try (try cg.trunc(bin_op, ty, new_ty)).toLocal(cg, ty);
+ const res_upcast = try cg.intcast(res, ty, new_ty);
+ _ = try cg.cmp(res_upcast, bin_op, new_ty, .neq);
+ try cg.addLabel(.local_set, overflow_bit.local.value);
break :blk res;
} else if (wasm_bits == 64) blk: {
const new_ty = if (int_info.signedness == .signed) Type.i128 else Type.u128;
- const lhs_upcast = try func.intcast(lhs, ty, new_ty);
- const rhs_upcast = try func.intcast(rhs, ty, new_ty);
- const bin_op = try (try func.binOp(lhs_upcast, rhs_upcast, new_ty, .mul)).toLocal(func, new_ty);
- const res = try (try func.trunc(bin_op, ty, new_ty)).toLocal(func, ty);
- const res_upcast = try func.intcast(res, ty, new_ty);
- _ = try func.cmp(res_upcast, bin_op, new_ty, .neq);
- try func.addLabel(.local_set, overflow_bit.local.value);
+ const lhs_upcast = try cg.intcast(lhs, ty, new_ty);
+ const rhs_upcast = try cg.intcast(rhs, ty, new_ty);
+ const bin_op = try (try cg.binOp(lhs_upcast, rhs_upcast, new_ty, .mul)).toLocal(cg, new_ty);
+ const res = try (try cg.trunc(bin_op, ty, new_ty)).toLocal(cg, ty);
+ const res_upcast = try cg.intcast(res, ty, new_ty);
+ _ = try cg.cmp(res_upcast, bin_op, new_ty, .neq);
+ try cg.addLabel(.local_set, overflow_bit.local.value);
break :blk res;
} else if (int_info.bits == 128 and int_info.signedness == .unsigned) blk: {
- var lhs_lsb = try (try func.load(lhs, Type.u64, 0)).toLocal(func, Type.u64);
- defer lhs_lsb.free(func);
- var lhs_msb = try (try func.load(lhs, Type.u64, 8)).toLocal(func, Type.u64);
- defer lhs_msb.free(func);
- var rhs_lsb = try (try func.load(rhs, Type.u64, 0)).toLocal(func, Type.u64);
- defer rhs_lsb.free(func);
- var rhs_msb = try (try func.load(rhs, Type.u64, 8)).toLocal(func, Type.u64);
- defer rhs_msb.free(func);
-
- const cross_1 = try func.callIntrinsic(
+ var lhs_lsb = try (try cg.load(lhs, Type.u64, 0)).toLocal(cg, Type.u64);
+ defer lhs_lsb.free(cg);
+ var lhs_msb = try (try cg.load(lhs, Type.u64, 8)).toLocal(cg, Type.u64);
+ defer lhs_msb.free(cg);
+ var rhs_lsb = try (try cg.load(rhs, Type.u64, 0)).toLocal(cg, Type.u64);
+ defer rhs_lsb.free(cg);
+ var rhs_msb = try (try cg.load(rhs, Type.u64, 8)).toLocal(cg, Type.u64);
+ defer rhs_msb.free(cg);
+
+ const cross_1 = try cg.callIntrinsic(
"__multi3",
&[_]InternPool.Index{.i64_type} ** 4,
Type.i128,
&.{ lhs_msb, zero, rhs_lsb, zero },
);
- const cross_2 = try func.callIntrinsic(
+ const cross_2 = try cg.callIntrinsic(
"__multi3",
&[_]InternPool.Index{.i64_type} ** 4,
Type.i128,
&.{ rhs_msb, zero, lhs_lsb, zero },
);
- const mul_lsb = try func.callIntrinsic(
+ const mul_lsb = try cg.callIntrinsic(
"__multi3",
&[_]InternPool.Index{.i64_type} ** 4,
Type.i128,
&.{ rhs_lsb, zero, lhs_lsb, zero },
);
- const rhs_msb_not_zero = try func.cmp(rhs_msb, zero, Type.u64, .neq);
- const lhs_msb_not_zero = try func.cmp(lhs_msb, zero, Type.u64, .neq);
- const both_msb_not_zero = try func.binOp(rhs_msb_not_zero, lhs_msb_not_zero, Type.bool, .@"and");
- const cross_1_msb = try func.load(cross_1, Type.u64, 8);
- const cross_1_msb_not_zero = try func.cmp(cross_1_msb, zero, Type.u64, .neq);
- const cond_1 = try func.binOp(both_msb_not_zero, cross_1_msb_not_zero, Type.bool, .@"or");
- const cross_2_msb = try func.load(cross_2, Type.u64, 8);
- const cross_2_msb_not_zero = try func.cmp(cross_2_msb, zero, Type.u64, .neq);
- const cond_2 = try func.binOp(cond_1, cross_2_msb_not_zero, Type.bool, .@"or");
-
- const cross_1_lsb = try func.load(cross_1, Type.u64, 0);
- const cross_2_lsb = try func.load(cross_2, Type.u64, 0);
- const cross_add = try func.binOp(cross_1_lsb, cross_2_lsb, Type.u64, .add);
-
- var mul_lsb_msb = try (try func.load(mul_lsb, Type.u64, 8)).toLocal(func, Type.u64);
- defer mul_lsb_msb.free(func);
- var all_add = try (try func.binOp(cross_add, mul_lsb_msb, Type.u64, .add)).toLocal(func, Type.u64);
- defer all_add.free(func);
- const add_overflow = try func.cmp(all_add, mul_lsb_msb, Type.u64, .lt);
+ const rhs_msb_not_zero = try cg.cmp(rhs_msb, zero, Type.u64, .neq);
+ const lhs_msb_not_zero = try cg.cmp(lhs_msb, zero, Type.u64, .neq);
+ const both_msb_not_zero = try cg.binOp(rhs_msb_not_zero, lhs_msb_not_zero, Type.bool, .@"and");
+ const cross_1_msb = try cg.load(cross_1, Type.u64, 8);
+ const cross_1_msb_not_zero = try cg.cmp(cross_1_msb, zero, Type.u64, .neq);
+ const cond_1 = try cg.binOp(both_msb_not_zero, cross_1_msb_not_zero, Type.bool, .@"or");
+ const cross_2_msb = try cg.load(cross_2, Type.u64, 8);
+ const cross_2_msb_not_zero = try cg.cmp(cross_2_msb, zero, Type.u64, .neq);
+ const cond_2 = try cg.binOp(cond_1, cross_2_msb_not_zero, Type.bool, .@"or");
+
+ const cross_1_lsb = try cg.load(cross_1, Type.u64, 0);
+ const cross_2_lsb = try cg.load(cross_2, Type.u64, 0);
+ const cross_add = try cg.binOp(cross_1_lsb, cross_2_lsb, Type.u64, .add);
+
+ var mul_lsb_msb = try (try cg.load(mul_lsb, Type.u64, 8)).toLocal(cg, Type.u64);
+ defer mul_lsb_msb.free(cg);
+ var all_add = try (try cg.binOp(cross_add, mul_lsb_msb, Type.u64, .add)).toLocal(cg, Type.u64);
+ defer all_add.free(cg);
+ const add_overflow = try cg.cmp(all_add, mul_lsb_msb, Type.u64, .lt);
// result for overflow bit
- _ = try func.binOp(cond_2, add_overflow, Type.bool, .@"or");
- try func.addLabel(.local_set, overflow_bit.local.value);
-
- const tmp_result = try func.allocStack(Type.u128);
- try func.emitWValue(tmp_result);
- const mul_lsb_lsb = try func.load(mul_lsb, Type.u64, 0);
- try func.store(.stack, mul_lsb_lsb, Type.u64, tmp_result.offset());
- try func.store(tmp_result, all_add, Type.u64, 8);
+ _ = try cg.binOp(cond_2, add_overflow, Type.bool, .@"or");
+ try cg.addLabel(.local_set, overflow_bit.local.value);
+
+ const tmp_result = try cg.allocStack(Type.u128);
+ try cg.emitWValue(tmp_result);
+ const mul_lsb_lsb = try cg.load(mul_lsb, Type.u64, 0);
+ try cg.store(.stack, mul_lsb_lsb, Type.u64, tmp_result.offset());
+ try cg.store(tmp_result, all_add, Type.u64, 8);
break :blk tmp_result;
} else if (int_info.bits == 128 and int_info.signedness == .signed) blk: {
- const overflow_ret = try func.allocStack(Type.i32);
- const res = try func.callIntrinsic(
+ const overflow_ret = try cg.allocStack(Type.i32);
+ const res = try cg.callIntrinsic(
"__muloti4",
&[_]InternPool.Index{ .i128_type, .i128_type, .usize_type },
Type.i128,
&.{ lhs, rhs, overflow_ret },
);
- _ = try func.load(overflow_ret, Type.i32, 0);
- try func.addLabel(.local_set, overflow_bit.local.value);
+ _ = try cg.load(overflow_ret, Type.i32, 0);
+ try cg.addLabel(.local_set, overflow_bit.local.value);
break :blk res;
- } else return func.fail("TODO: @mulWithOverflow for {}", .{ty.fmt(pt)});
- var bin_op_local = try mul.toLocal(func, ty);
- defer bin_op_local.free(func);
+ } else return cg.fail("TODO: @mulWithOverflow for {}", .{ty.fmt(pt)});
+ var bin_op_local = try mul.toLocal(cg, ty);
+ defer bin_op_local.free(cg);
- const result = try func.allocStack(func.typeOfIndex(inst));
+ const result = try cg.allocStack(cg.typeOfIndex(inst));
const offset: u32 = @intCast(ty.abiSize(zcu));
- try func.store(result, bin_op_local, ty, 0);
- try func.store(result, overflow_bit, Type.u1, offset);
+ try cg.store(result, bin_op_local, ty, 0);
+ try cg.store(result, overflow_bit, Type.u1, offset);
- return func.finishAir(inst, result, &.{ extra.lhs, extra.rhs });
+ return cg.finishAir(inst, result, &.{ extra.lhs, extra.rhs });
}
-fn airMaxMin(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
+fn airMaxMin(cg: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
assert(op == .max or op == .min);
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const ty = func.typeOfIndex(inst);
+ const ty = cg.typeOfIndex(inst);
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: `@maximum` and `@minimum` for vectors", .{});
+ return cg.fail("TODO: `@maximum` and `@minimum` for vectors", .{});
}
if (ty.abiSize(zcu) > 16) {
- return func.fail("TODO: `@maximum` and `@minimum` for types larger than 16 bytes", .{});
+ return cg.fail("TODO: `@maximum` and `@minimum` for types larger than 16 bytes", .{});
}
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
if (ty.zigTypeTag(zcu) == .float) {
var fn_name_buf: [64]u8 = undefined;
- const float_bits = ty.floatBits(func.target.*);
+ const float_bits = ty.floatBits(cg.target.*);
const fn_name = std.fmt.bufPrint(&fn_name_buf, "{s}f{s}{s}", .{
target_util.libcFloatPrefix(float_bits),
@tagName(op),
target_util.libcFloatSuffix(float_bits),
}) catch unreachable;
- const result = try func.callIntrinsic(fn_name, &.{ ty.ip_index, ty.ip_index }, ty, &.{ lhs, rhs });
- try func.lowerToStack(result);
+ const result = try cg.callIntrinsic(fn_name, &.{ ty.ip_index, ty.ip_index }, ty, &.{ lhs, rhs });
+ try cg.lowerToStack(result);
} else {
// operands to select from
- try func.lowerToStack(lhs);
- try func.lowerToStack(rhs);
- _ = try func.cmp(lhs, rhs, ty, if (op == .max) .gt else .lt);
+ try cg.lowerToStack(lhs);
+ try cg.lowerToStack(rhs);
+ _ = try cg.cmp(lhs, rhs, ty, if (op == .max) .gt else .lt);
// based on the result from comparison, return operand 0 or 1.
- try func.addTag(.select);
+ try cg.addTag(.select);
}
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airMulAdd(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airMulAdd(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- const bin_op = func.air.extraData(Air.Bin, pl_op.payload).data;
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+ const bin_op = cg.air.extraData(Air.Bin, pl_op.payload).data;
- const ty = func.typeOfIndex(inst);
+ const ty = cg.typeOfIndex(inst);
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: `@mulAdd` for vectors", .{});
+ return cg.fail("TODO: `@mulAdd` for vectors", .{});
}
- const addend = try func.resolveInst(pl_op.operand);
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const addend = try cg.resolveInst(pl_op.operand);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
- const result = if (ty.floatBits(func.target.*) == 16) fl_result: {
- const rhs_ext = try func.fpext(rhs, ty, Type.f32);
- const lhs_ext = try func.fpext(lhs, ty, Type.f32);
- const addend_ext = try func.fpext(addend, ty, Type.f32);
+ const result = if (ty.floatBits(cg.target.*) == 16) fl_result: {
+ const rhs_ext = try cg.fpext(rhs, ty, Type.f32);
+ const lhs_ext = try cg.fpext(lhs, ty, Type.f32);
+ const addend_ext = try cg.fpext(addend, ty, Type.f32);
// call to compiler-rt `fn fmaf(f32, f32, f32) f32`
- const result = try func.callIntrinsic(
+ const result = try cg.callIntrinsic(
"fmaf",
&.{ .f32_type, .f32_type, .f32_type },
Type.f32,
&.{ rhs_ext, lhs_ext, addend_ext },
);
- break :fl_result try func.fptrunc(result, Type.f32, ty);
+ break :fl_result try cg.fptrunc(result, Type.f32, ty);
} else result: {
- const mul_result = try func.binOp(lhs, rhs, ty, .mul);
- break :result try func.binOp(mul_result, addend, ty, .add);
+ const mul_result = try cg.binOp(lhs, rhs, ty, .mul);
+ break :result try cg.binOp(mul_result, addend, ty, .add);
};
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs, pl_op.operand });
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs, pl_op.operand });
}
-fn airClz(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airClz(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const ty = func.typeOf(ty_op.operand);
+ const ty = cg.typeOf(ty_op.operand);
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: `@clz` for vectors", .{});
+ return cg.fail("TODO: `@clz` for vectors", .{});
}
- const operand = try func.resolveInst(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
const int_info = ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: `@clz` for integers with bitsize '{d}'", .{int_info.bits});
+ return cg.fail("TODO: `@clz` for integers with bitsize '{d}'", .{int_info.bits});
};
switch (wasm_bits) {
32 => {
- try func.emitWValue(operand);
- try func.addTag(.i32_clz);
+ try cg.emitWValue(operand);
+ try cg.addTag(.i32_clz);
},
64 => {
- try func.emitWValue(operand);
- try func.addTag(.i64_clz);
- try func.addTag(.i32_wrap_i64);
+ try cg.emitWValue(operand);
+ try cg.addTag(.i64_clz);
+ try cg.addTag(.i32_wrap_i64);
},
128 => {
- var msb = try (try func.load(operand, Type.u64, 8)).toLocal(func, Type.u64);
- defer msb.free(func);
-
- try func.emitWValue(msb);
- try func.addTag(.i64_clz);
- _ = try func.load(operand, Type.u64, 0);
- try func.addTag(.i64_clz);
- try func.emitWValue(.{ .imm64 = 64 });
- try func.addTag(.i64_add);
- _ = try func.cmp(msb, .{ .imm64 = 0 }, Type.u64, .neq);
- try func.addTag(.select);
- try func.addTag(.i32_wrap_i64);
+ var msb = try (try cg.load(operand, Type.u64, 8)).toLocal(cg, Type.u64);
+ defer msb.free(cg);
+
+ try cg.emitWValue(msb);
+ try cg.addTag(.i64_clz);
+ _ = try cg.load(operand, Type.u64, 0);
+ try cg.addTag(.i64_clz);
+ try cg.emitWValue(.{ .imm64 = 64 });
+ try cg.addTag(.i64_add);
+ _ = try cg.cmp(msb, .{ .imm64 = 0 }, Type.u64, .neq);
+ try cg.addTag(.select);
+ try cg.addTag(.i32_wrap_i64);
},
else => unreachable,
}
if (wasm_bits != int_info.bits) {
- try func.emitWValue(.{ .imm32 = wasm_bits - int_info.bits });
- try func.addTag(.i32_sub);
+ try cg.emitWValue(.{ .imm32 = wasm_bits - int_info.bits });
+ try cg.addTag(.i32_sub);
}
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
}
-fn airCtz(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airCtz(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const ty = func.typeOf(ty_op.operand);
+ const ty = cg.typeOf(ty_op.operand);
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: `@ctz` for vectors", .{});
+ return cg.fail("TODO: `@ctz` for vectors", .{});
}
- const operand = try func.resolveInst(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
const int_info = ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: `@clz` for integers with bitsize '{d}'", .{int_info.bits});
+ return cg.fail("TODO: `@clz` for integers with bitsize '{d}'", .{int_info.bits});
};
switch (wasm_bits) {
@@ -6342,110 +6340,110 @@ fn airCtz(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
if (wasm_bits != int_info.bits) {
const val: u32 = @as(u32, 1) << @as(u5, @intCast(int_info.bits));
// leave value on the stack
- _ = try func.binOp(operand, .{ .imm32 = val }, ty, .@"or");
- } else try func.emitWValue(operand);
- try func.addTag(.i32_ctz);
+ _ = try cg.binOp(operand, .{ .imm32 = val }, ty, .@"or");
+ } else try cg.emitWValue(operand);
+ try cg.addTag(.i32_ctz);
},
64 => {
if (wasm_bits != int_info.bits) {
const val: u64 = @as(u64, 1) << @as(u6, @intCast(int_info.bits));
// leave value on the stack
- _ = try func.binOp(operand, .{ .imm64 = val }, ty, .@"or");
- } else try func.emitWValue(operand);
- try func.addTag(.i64_ctz);
- try func.addTag(.i32_wrap_i64);
+ _ = try cg.binOp(operand, .{ .imm64 = val }, ty, .@"or");
+ } else try cg.emitWValue(operand);
+ try cg.addTag(.i64_ctz);
+ try cg.addTag(.i32_wrap_i64);
},
128 => {
- var lsb = try (try func.load(operand, Type.u64, 0)).toLocal(func, Type.u64);
- defer lsb.free(func);
+ var lsb = try (try cg.load(operand, Type.u64, 0)).toLocal(cg, Type.u64);
+ defer lsb.free(cg);
- try func.emitWValue(lsb);
- try func.addTag(.i64_ctz);
- _ = try func.load(operand, Type.u64, 8);
+ try cg.emitWValue(lsb);
+ try cg.addTag(.i64_ctz);
+ _ = try cg.load(operand, Type.u64, 8);
if (wasm_bits != int_info.bits) {
- try func.addImm64(@as(u64, 1) << @as(u6, @intCast(int_info.bits - 64)));
- try func.addTag(.i64_or);
+ try cg.addImm64(@as(u64, 1) << @as(u6, @intCast(int_info.bits - 64)));
+ try cg.addTag(.i64_or);
}
- try func.addTag(.i64_ctz);
- try func.addImm64(64);
+ try cg.addTag(.i64_ctz);
+ try cg.addImm64(64);
if (wasm_bits != int_info.bits) {
- try func.addTag(.i64_or);
+ try cg.addTag(.i64_or);
} else {
- try func.addTag(.i64_add);
+ try cg.addTag(.i64_add);
}
- _ = try func.cmp(lsb, .{ .imm64 = 0 }, Type.u64, .neq);
- try func.addTag(.select);
- try func.addTag(.i32_wrap_i64);
+ _ = try cg.cmp(lsb, .{ .imm64 = 0 }, Type.u64, .neq);
+ try cg.addTag(.select);
+ try cg.addTag(.i32_wrap_i64);
},
else => unreachable,
}
- return func.finishAir(inst, .stack, &.{ty_op.operand});
+ return cg.finishAir(inst, .stack, &.{ty_op.operand});
}
-fn airDbgStmt(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const dbg_stmt = func.air.instructions.items(.data)[@intFromEnum(inst)].dbg_stmt;
- try func.addInst(.{ .tag = .dbg_line, .data = .{
- .payload = try func.addExtra(Mir.DbgLineColumn{
+fn airDbgStmt(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const dbg_stmt = cg.air.instructions.items(.data)[@intFromEnum(inst)].dbg_stmt;
+ try cg.addInst(.{ .tag = .dbg_line, .data = .{
+ .payload = try cg.addExtra(Mir.DbgLineColumn{
.line = dbg_stmt.line,
.column = dbg_stmt.column,
}),
} });
- return func.finishAir(inst, .none, &.{});
+ return cg.finishAir(inst, .none, &.{});
}
-fn airDbgInlineBlock(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.DbgInlineBlock, ty_pl.payload);
+fn airDbgInlineBlock(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.DbgInlineBlock, ty_pl.payload);
// TODO
- try func.lowerBlock(inst, ty_pl.ty.toType(), @ptrCast(func.air.extra[extra.end..][0..extra.data.body_len]));
+ try cg.lowerBlock(inst, ty_pl.ty.toType(), @ptrCast(cg.air.extra[extra.end..][0..extra.data.body_len]));
}
fn airDbgVar(
- func: *CodeGen,
+ cg: *CodeGen,
inst: Air.Inst.Index,
local_tag: link.File.Dwarf.WipNav.LocalTag,
is_ptr: bool,
) InnerError!void {
_ = is_ptr;
_ = local_tag;
- return func.finishAir(inst, .none, &.{});
+ return cg.finishAir(inst, .none, &.{});
}
-fn airTry(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- const err_union = try func.resolveInst(pl_op.operand);
- const extra = func.air.extraData(Air.Try, pl_op.payload);
- const body: []const Air.Inst.Index = @ptrCast(func.air.extra[extra.end..][0..extra.data.body_len]);
- const err_union_ty = func.typeOf(pl_op.operand);
- const result = try lowerTry(func, inst, err_union, body, err_union_ty, false);
- return func.finishAir(inst, result, &.{pl_op.operand});
+fn airTry(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+ const err_union = try cg.resolveInst(pl_op.operand);
+ const extra = cg.air.extraData(Air.Try, pl_op.payload);
+ const body: []const Air.Inst.Index = @ptrCast(cg.air.extra[extra.end..][0..extra.data.body_len]);
+ const err_union_ty = cg.typeOf(pl_op.operand);
+ const result = try lowerTry(cg, inst, err_union, body, err_union_ty, false);
+ return cg.finishAir(inst, result, &.{pl_op.operand});
}
-fn airTryPtr(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airTryPtr(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.TryPtr, ty_pl.payload);
- const err_union_ptr = try func.resolveInst(extra.data.ptr);
- const body: []const Air.Inst.Index = @ptrCast(func.air.extra[extra.end..][0..extra.data.body_len]);
- const err_union_ty = func.typeOf(extra.data.ptr).childType(zcu);
- const result = try lowerTry(func, inst, err_union_ptr, body, err_union_ty, true);
- return func.finishAir(inst, result, &.{extra.data.ptr});
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.TryPtr, ty_pl.payload);
+ const err_union_ptr = try cg.resolveInst(extra.data.ptr);
+ const body: []const Air.Inst.Index = @ptrCast(cg.air.extra[extra.end..][0..extra.data.body_len]);
+ const err_union_ty = cg.typeOf(extra.data.ptr).childType(zcu);
+ const result = try lowerTry(cg, inst, err_union_ptr, body, err_union_ty, true);
+ return cg.finishAir(inst, result, &.{extra.data.ptr});
}
fn lowerTry(
- func: *CodeGen,
+ cg: *CodeGen,
inst: Air.Inst.Index,
err_union: WValue,
body: []const Air.Inst.Index,
err_union_ty: Type,
operand_is_ptr: bool,
) InnerError!WValue {
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
if (operand_is_ptr) {
- return func.fail("TODO: lowerTry for pointers", .{});
+ return cg.fail("TODO: lowerTry for pointers", .{});
}
const pl_ty = err_union_ty.errorUnionPayload(zcu);
@@ -6453,29 +6451,29 @@ fn lowerTry(
if (!err_union_ty.errorUnionSet(zcu).errorSetIsEmpty(zcu)) {
// Block we can jump out of when error is not set
- try func.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
// check if the error tag is set for the error union.
- try func.emitWValue(err_union);
+ try cg.emitWValue(err_union);
if (pl_has_bits) {
const err_offset: u32 = @intCast(errUnionErrorOffset(pl_ty, zcu));
- try func.addMemArg(.i32_load16_u, .{
+ try cg.addMemArg(.i32_load16_u, .{
.offset = err_union.offset() + err_offset,
.alignment = @intCast(Type.anyerror.abiAlignment(zcu).toByteUnits().?),
});
}
- try func.addTag(.i32_eqz);
- try func.addLabel(.br_if, 0); // jump out of block when error is '0'
+ try cg.addTag(.i32_eqz);
+ try cg.addLabel(.br_if, 0); // jump out of block when error is '0'
- const liveness = func.liveness.getCondBr(inst);
- try func.branches.append(func.gpa, .{});
- try func.currentBranch().values.ensureUnusedCapacity(func.gpa, liveness.else_deaths.len + liveness.then_deaths.len);
+ const liveness = cg.liveness.getCondBr(inst);
+ try cg.branches.append(cg.gpa, .{});
+ try cg.currentBranch().values.ensureUnusedCapacity(cg.gpa, liveness.else_deaths.len + liveness.then_deaths.len);
defer {
- var branch = func.branches.pop();
- branch.deinit(func.gpa);
+ var branch = cg.branches.pop();
+ branch.deinit(cg.gpa);
}
- try func.genBody(body);
- try func.endBlock();
+ try cg.genBody(body);
+ try cg.endBlock();
}
// if we reach here it means error was not set, and we want the payload
@@ -6484,38 +6482,38 @@ fn lowerTry(
}
const pl_offset: u32 = @intCast(errUnionPayloadOffset(pl_ty, zcu));
- if (isByRef(pl_ty, pt, func.target)) {
- return buildPointerOffset(func, err_union, pl_offset, .new);
+ if (isByRef(pl_ty, pt, cg.target)) {
+ return buildPointerOffset(cg, err_union, pl_offset, .new);
}
- const payload = try func.load(err_union, pl_ty, pl_offset);
- return payload.toLocal(func, pl_ty);
+ const payload = try cg.load(err_union, pl_ty, pl_offset);
+ return payload.toLocal(cg, pl_ty);
}
-fn airByteSwap(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airByteSwap(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const ty = func.typeOfIndex(inst);
- const operand = try func.resolveInst(ty_op.operand);
+ const ty = cg.typeOfIndex(inst);
+ const operand = try cg.resolveInst(ty_op.operand);
if (ty.zigTypeTag(zcu) == .vector) {
- return func.fail("TODO: @byteSwap for vectors", .{});
+ return cg.fail("TODO: @byteSwap for vectors", .{});
}
const int_info = ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: @byteSwap for integers with bitsize {d}", .{int_info.bits});
+ return cg.fail("TODO: @byteSwap for integers with bitsize {d}", .{int_info.bits});
};
// bytes are no-op
if (int_info.bits == 8) {
- return func.finishAir(inst, func.reuseOperand(ty_op.operand, operand), &.{ty_op.operand});
+ return cg.finishAir(inst, cg.reuseOperand(ty_op.operand, operand), &.{ty_op.operand});
}
const result = result: {
switch (wasm_bits) {
32 => {
- const intrin_ret = try func.callIntrinsic(
+ const intrin_ret = try cg.callIntrinsic(
"__bswapsi2",
&.{.u32_type},
Type.u32,
@@ -6524,10 +6522,10 @@ fn airByteSwap(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
break :result if (int_info.bits == 32)
intrin_ret
else
- try func.binOp(intrin_ret, .{ .imm32 = 32 - int_info.bits }, ty, .shr);
+ try cg.binOp(intrin_ret, .{ .imm32 = 32 - int_info.bits }, ty, .shr);
},
64 => {
- const intrin_ret = try func.callIntrinsic(
+ const intrin_ret = try cg.callIntrinsic(
"__bswapdi2",
&.{.u64_type},
Type.u64,
@@ -6536,61 +6534,61 @@ fn airByteSwap(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
break :result if (int_info.bits == 64)
intrin_ret
else
- try func.binOp(intrin_ret, .{ .imm64 = 64 - int_info.bits }, ty, .shr);
+ try cg.binOp(intrin_ret, .{ .imm64 = 64 - int_info.bits }, ty, .shr);
},
- else => return func.fail("TODO: @byteSwap for integers with bitsize {d}", .{int_info.bits}),
+ else => return cg.fail("TODO: @byteSwap for integers with bitsize {d}", .{int_info.bits}),
}
};
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-fn airDiv(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airDiv(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const ty = func.typeOfIndex(inst);
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const ty = cg.typeOfIndex(inst);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
- const result = try func.binOp(lhs, rhs, ty, .div);
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ const result = try cg.binOp(lhs, rhs, ty, .div);
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airDivTrunc(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airDivTrunc(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const ty = func.typeOfIndex(inst);
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const ty = cg.typeOfIndex(inst);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
- const div_result = try func.binOp(lhs, rhs, ty, .div);
+ const div_result = try cg.binOp(lhs, rhs, ty, .div);
if (ty.isAnyFloat()) {
- const trunc_result = try func.floatOp(.trunc, ty, &.{div_result});
- return func.finishAir(inst, trunc_result, &.{ bin_op.lhs, bin_op.rhs });
+ const trunc_result = try cg.floatOp(.trunc, ty, &.{div_result});
+ return cg.finishAir(inst, trunc_result, &.{ bin_op.lhs, bin_op.rhs });
}
- return func.finishAir(inst, div_result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, div_result, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airDivFloor(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airDivFloor(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty = func.typeOfIndex(inst);
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const ty = cg.typeOfIndex(inst);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
if (ty.isUnsignedInt(zcu)) {
- _ = try func.binOp(lhs, rhs, ty, .div);
+ _ = try cg.binOp(lhs, rhs, ty, .div);
} else if (ty.isSignedInt(zcu)) {
const int_bits = ty.intInfo(zcu).bits;
const wasm_bits = toWasmBits(int_bits) orelse {
- return func.fail("TODO: `@divFloor` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
+ return cg.fail("TODO: `@divFloor` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
};
if (wasm_bits > 64) {
- return func.fail("TODO: `@divFloor` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
+ return cg.fail("TODO: `@divFloor` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
}
const zero: WValue = switch (wasm_bits) {
@@ -6600,108 +6598,108 @@ fn airDivFloor(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
};
// tee leaves the value on the stack and stores it in a local.
- const quotient = try func.allocLocal(ty);
- _ = try func.binOp(lhs, rhs, ty, .div);
- try func.addLabel(.local_tee, quotient.local.value);
+ const quotient = try cg.allocLocal(ty);
+ _ = try cg.binOp(lhs, rhs, ty, .div);
+ try cg.addLabel(.local_tee, quotient.local.value);
// select takes a 32 bit value as the condition, so in the 64 bit case we use eqz to narrow
// the 64 bit value we want to use as the condition to 32 bits.
// This also inverts the condition (non 0 => 0, 0 => 1), so we put the adjusted and
// non-adjusted quotients on the stack in the opposite order for 32 vs 64 bits.
if (wasm_bits == 64) {
- try func.emitWValue(quotient);
+ try cg.emitWValue(quotient);
}
// 0 if the signs of rhs_wasm and lhs_wasm are the same, 1 otherwise.
- _ = try func.binOp(lhs, rhs, ty, .xor);
- _ = try func.cmp(.stack, zero, ty, .lt);
+ _ = try cg.binOp(lhs, rhs, ty, .xor);
+ _ = try cg.cmp(.stack, zero, ty, .lt);
switch (wasm_bits) {
32 => {
- try func.addTag(.i32_sub);
- try func.emitWValue(quotient);
+ try cg.addTag(.i32_sub);
+ try cg.emitWValue(quotient);
},
64 => {
- try func.addTag(.i64_extend_i32_u);
- try func.addTag(.i64_sub);
+ try cg.addTag(.i64_extend_i32_u);
+ try cg.addTag(.i64_sub);
},
else => unreachable,
}
- _ = try func.binOp(lhs, rhs, ty, .rem);
+ _ = try cg.binOp(lhs, rhs, ty, .rem);
if (wasm_bits == 64) {
- try func.addTag(.i64_eqz);
+ try cg.addTag(.i64_eqz);
}
- try func.addTag(.select);
+ try cg.addTag(.select);
// We need to zero the high bits because N bit comparisons consider all 32 or 64 bits, and
// expect all but the lowest N bits to be 0.
// TODO: Should we be zeroing the high bits here or should we be ignoring the high bits
// when performing comparisons?
if (int_bits != wasm_bits) {
- _ = try func.wrapOperand(.stack, ty);
+ _ = try cg.wrapOperand(.stack, ty);
}
} else {
- const float_bits = ty.floatBits(func.target.*);
+ const float_bits = ty.floatBits(cg.target.*);
if (float_bits > 64) {
- return func.fail("TODO: `@divFloor` for floats with bitsize: {d}", .{float_bits});
+ return cg.fail("TODO: `@divFloor` for floats with bitsize: {d}", .{float_bits});
}
const is_f16 = float_bits == 16;
- const lhs_wasm = if (is_f16) try func.fpext(lhs, Type.f16, Type.f32) else lhs;
- const rhs_wasm = if (is_f16) try func.fpext(rhs, Type.f16, Type.f32) else rhs;
+ const lhs_wasm = if (is_f16) try cg.fpext(lhs, Type.f16, Type.f32) else lhs;
+ const rhs_wasm = if (is_f16) try cg.fpext(rhs, Type.f16, Type.f32) else rhs;
- try func.emitWValue(lhs_wasm);
- try func.emitWValue(rhs_wasm);
+ try cg.emitWValue(lhs_wasm);
+ try cg.emitWValue(rhs_wasm);
switch (float_bits) {
16, 32 => {
- try func.addTag(.f32_div);
- try func.addTag(.f32_floor);
+ try cg.addTag(.f32_div);
+ try cg.addTag(.f32_floor);
},
64 => {
- try func.addTag(.f64_div);
- try func.addTag(.f64_floor);
+ try cg.addTag(.f64_div);
+ try cg.addTag(.f64_floor);
},
else => unreachable,
}
if (is_f16) {
- _ = try func.fptrunc(.stack, Type.f32, Type.f16);
+ _ = try cg.fptrunc(.stack, Type.f32, Type.f16);
}
}
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airRem(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airRem(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const ty = func.typeOfIndex(inst);
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const ty = cg.typeOfIndex(inst);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
- const result = try func.binOp(lhs, rhs, ty, .rem);
+ const result = try cg.binOp(lhs, rhs, ty, .rem);
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
/// Remainder after floor division, defined by:
/// @divFloor(a, b) * b + @mod(a, b) = a
-fn airMod(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airMod(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty = func.typeOfIndex(inst);
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const ty = cg.typeOfIndex(inst);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
const result = result: {
if (ty.isUnsignedInt(zcu)) {
- break :result try func.binOp(lhs, rhs, ty, .rem);
+ break :result try cg.binOp(lhs, rhs, ty, .rem);
}
if (ty.isSignedInt(zcu)) {
// The wasm rem instruction gives the remainder after truncating division (rounding towards
@@ -6710,153 +6708,153 @@ fn airMod(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
// @mod(a, b) = @rem(@rem(a, b) + b, b)
const int_bits = ty.intInfo(zcu).bits;
const wasm_bits = toWasmBits(int_bits) orelse {
- return func.fail("TODO: `@mod` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
+ return cg.fail("TODO: `@mod` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
};
if (wasm_bits > 64) {
- return func.fail("TODO: `@mod` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
+ return cg.fail("TODO: `@mod` for signed integers larger than 64 bits ({d} bits requested)", .{int_bits});
}
- _ = try func.binOp(lhs, rhs, ty, .rem);
- _ = try func.binOp(.stack, rhs, ty, .add);
- break :result try func.binOp(.stack, rhs, ty, .rem);
+ _ = try cg.binOp(lhs, rhs, ty, .rem);
+ _ = try cg.binOp(.stack, rhs, ty, .add);
+ break :result try cg.binOp(.stack, rhs, ty, .rem);
}
if (ty.isAnyFloat()) {
- const rem = try func.binOp(lhs, rhs, ty, .rem);
- const add = try func.binOp(rem, rhs, ty, .add);
- break :result try func.binOp(add, rhs, ty, .rem);
+ const rem = try cg.binOp(lhs, rhs, ty, .rem);
+ const add = try cg.binOp(rem, rhs, ty, .add);
+ break :result try cg.binOp(add, rhs, ty, .rem);
}
- return func.fail("TODO: @mod for {}", .{ty.fmt(pt)});
+ return cg.fail("TODO: @mod for {}", .{ty.fmt(pt)});
};
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airSatMul(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airSatMul(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty = func.typeOfIndex(inst);
+ const ty = cg.typeOfIndex(inst);
const int_info = ty.intInfo(zcu);
const is_signed = int_info.signedness == .signed;
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
const wasm_bits = toWasmBits(int_info.bits) orelse {
- return func.fail("TODO: mul_sat for {}", .{ty.fmt(pt)});
+ return cg.fail("TODO: mul_sat for {}", .{ty.fmt(pt)});
};
switch (wasm_bits) {
32 => {
const upcast_ty: Type = if (is_signed) Type.i64 else Type.u64;
- const lhs_up = try func.intcast(lhs, ty, upcast_ty);
- const rhs_up = try func.intcast(rhs, ty, upcast_ty);
- var mul_res = try (try func.binOp(lhs_up, rhs_up, upcast_ty, .mul)).toLocal(func, upcast_ty);
- defer mul_res.free(func);
+ const lhs_up = try cg.intcast(lhs, ty, upcast_ty);
+ const rhs_up = try cg.intcast(rhs, ty, upcast_ty);
+ var mul_res = try (try cg.binOp(lhs_up, rhs_up, upcast_ty, .mul)).toLocal(cg, upcast_ty);
+ defer mul_res.free(cg);
if (is_signed) {
const imm_max: WValue = .{ .imm64 = ~@as(u64, 0) >> @intCast(64 - (int_info.bits - 1)) };
- try func.emitWValue(mul_res);
- try func.emitWValue(imm_max);
- _ = try func.cmp(mul_res, imm_max, upcast_ty, .lt);
- try func.addTag(.select);
+ try cg.emitWValue(mul_res);
+ try cg.emitWValue(imm_max);
+ _ = try cg.cmp(mul_res, imm_max, upcast_ty, .lt);
+ try cg.addTag(.select);
- var tmp = try func.allocLocal(upcast_ty);
- defer tmp.free(func);
- try func.addLabel(.local_set, tmp.local.value);
+ var tmp = try cg.allocLocal(upcast_ty);
+ defer tmp.free(cg);
+ try cg.addLabel(.local_set, tmp.local.value);
const imm_min: WValue = .{ .imm64 = ~@as(u64, 0) << @intCast(int_info.bits - 1) };
- try func.emitWValue(tmp);
- try func.emitWValue(imm_min);
- _ = try func.cmp(tmp, imm_min, upcast_ty, .gt);
- try func.addTag(.select);
+ try cg.emitWValue(tmp);
+ try cg.emitWValue(imm_min);
+ _ = try cg.cmp(tmp, imm_min, upcast_ty, .gt);
+ try cg.addTag(.select);
} else {
const imm_max: WValue = .{ .imm64 = ~@as(u64, 0) >> @intCast(64 - int_info.bits) };
- try func.emitWValue(mul_res);
- try func.emitWValue(imm_max);
- _ = try func.cmp(mul_res, imm_max, upcast_ty, .lt);
- try func.addTag(.select);
+ try cg.emitWValue(mul_res);
+ try cg.emitWValue(imm_max);
+ _ = try cg.cmp(mul_res, imm_max, upcast_ty, .lt);
+ try cg.addTag(.select);
}
- try func.addTag(.i32_wrap_i64);
+ try cg.addTag(.i32_wrap_i64);
},
64 => {
if (!(int_info.bits == 64 and int_info.signedness == .signed)) {
- return func.fail("TODO: mul_sat for {}", .{ty.fmt(pt)});
+ return cg.fail("TODO: mul_sat for {}", .{ty.fmt(pt)});
}
- const overflow_ret = try func.allocStack(Type.i32);
- _ = try func.callIntrinsic(
+ const overflow_ret = try cg.allocStack(Type.i32);
+ _ = try cg.callIntrinsic(
"__mulodi4",
&[_]InternPool.Index{ .i64_type, .i64_type, .usize_type },
Type.i64,
&.{ lhs, rhs, overflow_ret },
);
- const xor = try func.binOp(lhs, rhs, Type.i64, .xor);
- const sign_v = try func.binOp(xor, .{ .imm64 = 63 }, Type.i64, .shr);
- _ = try func.binOp(sign_v, .{ .imm64 = ~@as(u63, 0) }, Type.i64, .xor);
- _ = try func.load(overflow_ret, Type.i32, 0);
- try func.addTag(.i32_eqz);
- try func.addTag(.select);
+ const xor = try cg.binOp(lhs, rhs, Type.i64, .xor);
+ const sign_v = try cg.binOp(xor, .{ .imm64 = 63 }, Type.i64, .shr);
+ _ = try cg.binOp(sign_v, .{ .imm64 = ~@as(u63, 0) }, Type.i64, .xor);
+ _ = try cg.load(overflow_ret, Type.i32, 0);
+ try cg.addTag(.i32_eqz);
+ try cg.addTag(.select);
},
128 => {
if (!(int_info.bits == 128 and int_info.signedness == .signed)) {
- return func.fail("TODO: mul_sat for {}", .{ty.fmt(pt)});
+ return cg.fail("TODO: mul_sat for {}", .{ty.fmt(pt)});
}
- const overflow_ret = try func.allocStack(Type.i32);
- const ret = try func.callIntrinsic(
+ const overflow_ret = try cg.allocStack(Type.i32);
+ const ret = try cg.callIntrinsic(
"__muloti4",
&[_]InternPool.Index{ .i128_type, .i128_type, .usize_type },
Type.i128,
&.{ lhs, rhs, overflow_ret },
);
- try func.lowerToStack(ret);
- const xor = try func.binOp(lhs, rhs, Type.i128, .xor);
- const sign_v = try func.binOp(xor, .{ .imm32 = 127 }, Type.i128, .shr);
+ try cg.lowerToStack(ret);
+ const xor = try cg.binOp(lhs, rhs, Type.i128, .xor);
+ const sign_v = try cg.binOp(xor, .{ .imm32 = 127 }, Type.i128, .shr);
// xor ~@as(u127, 0)
- try func.emitWValue(sign_v);
- const lsb = try func.load(sign_v, Type.u64, 0);
- _ = try func.binOp(lsb, .{ .imm64 = ~@as(u64, 0) }, Type.u64, .xor);
- try func.store(.stack, .stack, Type.u64, sign_v.offset());
- try func.emitWValue(sign_v);
- const msb = try func.load(sign_v, Type.u64, 8);
- _ = try func.binOp(msb, .{ .imm64 = ~@as(u63, 0) }, Type.u64, .xor);
- try func.store(.stack, .stack, Type.u64, sign_v.offset() + 8);
-
- try func.lowerToStack(sign_v);
- _ = try func.load(overflow_ret, Type.i32, 0);
- try func.addTag(.i32_eqz);
- try func.addTag(.select);
+ try cg.emitWValue(sign_v);
+ const lsb = try cg.load(sign_v, Type.u64, 0);
+ _ = try cg.binOp(lsb, .{ .imm64 = ~@as(u64, 0) }, Type.u64, .xor);
+ try cg.store(.stack, .stack, Type.u64, sign_v.offset());
+ try cg.emitWValue(sign_v);
+ const msb = try cg.load(sign_v, Type.u64, 8);
+ _ = try cg.binOp(msb, .{ .imm64 = ~@as(u63, 0) }, Type.u64, .xor);
+ try cg.store(.stack, .stack, Type.u64, sign_v.offset() + 8);
+
+ try cg.lowerToStack(sign_v);
+ _ = try cg.load(overflow_ret, Type.i32, 0);
+ try cg.addTag(.i32_eqz);
+ try cg.addTag(.select);
},
else => unreachable,
}
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airSatBinOp(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
+fn airSatBinOp(cg: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
assert(op == .add or op == .sub);
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty = func.typeOfIndex(inst);
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const ty = cg.typeOfIndex(inst);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
const int_info = ty.intInfo(zcu);
const is_signed = int_info.signedness == .signed;
if (int_info.bits > 64) {
- return func.fail("TODO: saturating arithmetic for integers with bitsize '{d}'", .{int_info.bits});
+ return cg.fail("TODO: saturating arithmetic for integers with bitsize '{d}'", .{int_info.bits});
}
if (is_signed) {
- const result = try signedSat(func, lhs, rhs, ty, op);
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ const result = try signedSat(cg, lhs, rhs, ty, op);
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
const wasm_bits = toWasmBits(int_info.bits).?;
- var bin_result = try (try func.binOp(lhs, rhs, ty, op)).toLocal(func, ty);
- defer bin_result.free(func);
+ var bin_result = try (try cg.binOp(lhs, rhs, ty, op)).toLocal(cg, ty);
+ defer bin_result.free(cg);
if (wasm_bits != int_info.bits and op == .add) {
const val: u64 = @as(u64, @intCast((@as(u65, 1) << @as(u7, @intCast(int_info.bits))) - 1));
const imm_val: WValue = switch (wasm_bits) {
@@ -6865,25 +6863,25 @@ fn airSatBinOp(func: *CodeGen, inst: Air.Inst.Index, op: Op) InnerError!void {
else => unreachable,
};
- try func.emitWValue(bin_result);
- try func.emitWValue(imm_val);
- _ = try func.cmp(bin_result, imm_val, ty, .lt);
+ try cg.emitWValue(bin_result);
+ try cg.emitWValue(imm_val);
+ _ = try cg.cmp(bin_result, imm_val, ty, .lt);
} else {
switch (wasm_bits) {
- 32 => try func.addImm32(if (op == .add) std.math.maxInt(u32) else 0),
- 64 => try func.addImm64(if (op == .add) std.math.maxInt(u64) else 0),
+ 32 => try cg.addImm32(if (op == .add) std.math.maxInt(u32) else 0),
+ 64 => try cg.addImm64(if (op == .add) std.math.maxInt(u64) else 0),
else => unreachable,
}
- try func.emitWValue(bin_result);
- _ = try func.cmp(bin_result, lhs, ty, if (op == .add) .lt else .gt);
+ try cg.emitWValue(bin_result);
+ _ = try cg.cmp(bin_result, lhs, ty, if (op == .add) .lt else .gt);
}
- try func.addTag(.select);
- return func.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
+ try cg.addTag(.select);
+ return cg.finishAir(inst, .stack, &.{ bin_op.lhs, bin_op.rhs });
}
-fn signedSat(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
- const pt = func.pt;
+fn signedSat(cg: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerError!WValue {
+ const pt = cg.pt;
const zcu = pt.zcu;
const int_info = ty.intInfo(zcu);
const wasm_bits = toWasmBits(int_info.bits).?;
@@ -6903,92 +6901,92 @@ fn signedSat(func: *CodeGen, lhs: WValue, rhs: WValue, ty: Type, op: Op) InnerEr
else => unreachable,
};
- var bin_result = try (try func.binOp(lhs, rhs, ext_ty, op)).toLocal(func, ext_ty);
+ var bin_result = try (try cg.binOp(lhs, rhs, ext_ty, op)).toLocal(cg, ext_ty);
if (!is_wasm_bits) {
- defer bin_result.free(func); // not returned in this branch
- try func.emitWValue(bin_result);
- try func.emitWValue(max_wvalue);
- _ = try func.cmp(bin_result, max_wvalue, ext_ty, .lt);
- try func.addTag(.select);
- try func.addLabel(.local_set, bin_result.local.value); // re-use local
-
- try func.emitWValue(bin_result);
- try func.emitWValue(min_wvalue);
- _ = try func.cmp(bin_result, min_wvalue, ext_ty, .gt);
- try func.addTag(.select);
- try func.addLabel(.local_set, bin_result.local.value); // re-use local
- return (try func.wrapOperand(bin_result, ty)).toLocal(func, ty);
+ defer bin_result.free(cg); // not returned in this branch
+ try cg.emitWValue(bin_result);
+ try cg.emitWValue(max_wvalue);
+ _ = try cg.cmp(bin_result, max_wvalue, ext_ty, .lt);
+ try cg.addTag(.select);
+ try cg.addLabel(.local_set, bin_result.local.value); // re-use local
+
+ try cg.emitWValue(bin_result);
+ try cg.emitWValue(min_wvalue);
+ _ = try cg.cmp(bin_result, min_wvalue, ext_ty, .gt);
+ try cg.addTag(.select);
+ try cg.addLabel(.local_set, bin_result.local.value); // re-use local
+ return (try cg.wrapOperand(bin_result, ty)).toLocal(cg, ty);
} else {
const zero: WValue = switch (wasm_bits) {
32 => .{ .imm32 = 0 },
64 => .{ .imm64 = 0 },
else => unreachable,
};
- try func.emitWValue(max_wvalue);
- try func.emitWValue(min_wvalue);
- _ = try func.cmp(bin_result, zero, ty, .lt);
- try func.addTag(.select);
- try func.emitWValue(bin_result);
+ try cg.emitWValue(max_wvalue);
+ try cg.emitWValue(min_wvalue);
+ _ = try cg.cmp(bin_result, zero, ty, .lt);
+ try cg.addTag(.select);
+ try cg.emitWValue(bin_result);
// leave on stack
- const cmp_zero_result = try func.cmp(rhs, zero, ty, if (op == .add) .lt else .gt);
- const cmp_bin_result = try func.cmp(bin_result, lhs, ty, .lt);
- _ = try func.binOp(cmp_zero_result, cmp_bin_result, Type.u32, .xor); // comparisons always return i32, so provide u32 as type to xor.
- try func.addTag(.select);
- try func.addLabel(.local_set, bin_result.local.value); // re-use local
+ const cmp_zero_result = try cg.cmp(rhs, zero, ty, if (op == .add) .lt else .gt);
+ const cmp_bin_result = try cg.cmp(bin_result, lhs, ty, .lt);
+ _ = try cg.binOp(cmp_zero_result, cmp_bin_result, Type.u32, .xor); // comparisons always return i32, so provide u32 as type to xor.
+ try cg.addTag(.select);
+ try cg.addLabel(.local_set, bin_result.local.value); // re-use local
return bin_result;
}
}
-fn airShlSat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+fn airShlSat(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const pt = func.pt;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty = func.typeOfIndex(inst);
+ const ty = cg.typeOfIndex(inst);
const int_info = ty.intInfo(zcu);
const is_signed = int_info.signedness == .signed;
if (int_info.bits > 64) {
- return func.fail("TODO: Saturating shifting left for integers with bitsize '{d}'", .{int_info.bits});
+ return cg.fail("TODO: Saturating shifting left for integers with bitsize '{d}'", .{int_info.bits});
}
- const lhs = try func.resolveInst(bin_op.lhs);
- const rhs = try func.resolveInst(bin_op.rhs);
+ const lhs = try cg.resolveInst(bin_op.lhs);
+ const rhs = try cg.resolveInst(bin_op.rhs);
const wasm_bits = toWasmBits(int_info.bits).?;
- const result = try func.allocLocal(ty);
+ const result = try cg.allocLocal(ty);
if (wasm_bits == int_info.bits) {
- var shl = try (try func.binOp(lhs, rhs, ty, .shl)).toLocal(func, ty);
- defer shl.free(func);
- var shr = try (try func.binOp(shl, rhs, ty, .shr)).toLocal(func, ty);
- defer shr.free(func);
+ var shl = try (try cg.binOp(lhs, rhs, ty, .shl)).toLocal(cg, ty);
+ defer shl.free(cg);
+ var shr = try (try cg.binOp(shl, rhs, ty, .shr)).toLocal(cg, ty);
+ defer shr.free(cg);
switch (wasm_bits) {
32 => blk: {
if (!is_signed) {
- try func.addImm32(std.math.maxInt(u32));
+ try cg.addImm32(std.math.maxInt(u32));
break :blk;
}
- try func.addImm32(@bitCast(@as(i32, std.math.minInt(i32))));
- try func.addImm32(@bitCast(@as(i32, std.math.maxInt(i32))));
- _ = try func.cmp(lhs, .{ .imm32 = 0 }, ty, .lt);
- try func.addTag(.select);
+ try cg.addImm32(@bitCast(@as(i32, std.math.minInt(i32))));
+ try cg.addImm32(@bitCast(@as(i32, std.math.maxInt(i32))));
+ _ = try cg.cmp(lhs, .{ .imm32 = 0 }, ty, .lt);
+ try cg.addTag(.select);
},
64 => blk: {
if (!is_signed) {
- try func.addImm64(std.math.maxInt(u64));
+ try cg.addImm64(std.math.maxInt(u64));
break :blk;
}
- try func.addImm64(@bitCast(@as(i64, std.math.minInt(i64))));
- try func.addImm64(@bitCast(@as(i64, std.math.maxInt(i64))));
- _ = try func.cmp(lhs, .{ .imm64 = 0 }, ty, .lt);
- try func.addTag(.select);
+ try cg.addImm64(@bitCast(@as(i64, std.math.minInt(i64))));
+ try cg.addImm64(@bitCast(@as(i64, std.math.maxInt(i64))));
+ _ = try cg.cmp(lhs, .{ .imm64 = 0 }, ty, .lt);
+ try cg.addTag(.select);
},
else => unreachable,
}
- try func.emitWValue(shl);
- _ = try func.cmp(lhs, shr, ty, .neq);
- try func.addTag(.select);
- try func.addLabel(.local_set, result.local.value);
+ try cg.emitWValue(shl);
+ _ = try cg.cmp(lhs, shr, ty, .neq);
+ try cg.addTag(.select);
+ try cg.addLabel(.local_set, result.local.value);
} else {
const shift_size = wasm_bits - int_info.bits;
const shift_value: WValue = switch (wasm_bits) {
@@ -6998,50 +6996,50 @@ fn airShlSat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
};
const ext_ty = try pt.intType(int_info.signedness, wasm_bits);
- var shl_res = try (try func.binOp(lhs, shift_value, ext_ty, .shl)).toLocal(func, ext_ty);
- defer shl_res.free(func);
- var shl = try (try func.binOp(shl_res, rhs, ext_ty, .shl)).toLocal(func, ext_ty);
- defer shl.free(func);
- var shr = try (try func.binOp(shl, rhs, ext_ty, .shr)).toLocal(func, ext_ty);
- defer shr.free(func);
+ var shl_res = try (try cg.binOp(lhs, shift_value, ext_ty, .shl)).toLocal(cg, ext_ty);
+ defer shl_res.free(cg);
+ var shl = try (try cg.binOp(shl_res, rhs, ext_ty, .shl)).toLocal(cg, ext_ty);
+ defer shl.free(cg);
+ var shr = try (try cg.binOp(shl, rhs, ext_ty, .shr)).toLocal(cg, ext_ty);
+ defer shr.free(cg);
switch (wasm_bits) {
32 => blk: {
if (!is_signed) {
- try func.addImm32(std.math.maxInt(u32));
+ try cg.addImm32(std.math.maxInt(u32));
break :blk;
}
- try func.addImm32(@bitCast(@as(i32, std.math.minInt(i32))));
- try func.addImm32(@bitCast(@as(i32, std.math.maxInt(i32))));
- _ = try func.cmp(shl_res, .{ .imm32 = 0 }, ext_ty, .lt);
- try func.addTag(.select);
+ try cg.addImm32(@bitCast(@as(i32, std.math.minInt(i32))));
+ try cg.addImm32(@bitCast(@as(i32, std.math.maxInt(i32))));
+ _ = try cg.cmp(shl_res, .{ .imm32 = 0 }, ext_ty, .lt);
+ try cg.addTag(.select);
},
64 => blk: {
if (!is_signed) {
- try func.addImm64(std.math.maxInt(u64));
+ try cg.addImm64(std.math.maxInt(u64));
break :blk;
}
- try func.addImm64(@bitCast(@as(i64, std.math.minInt(i64))));
- try func.addImm64(@bitCast(@as(i64, std.math.maxInt(i64))));
- _ = try func.cmp(shl_res, .{ .imm64 = 0 }, ext_ty, .lt);
- try func.addTag(.select);
+ try cg.addImm64(@bitCast(@as(i64, std.math.minInt(i64))));
+ try cg.addImm64(@bitCast(@as(i64, std.math.maxInt(i64))));
+ _ = try cg.cmp(shl_res, .{ .imm64 = 0 }, ext_ty, .lt);
+ try cg.addTag(.select);
},
else => unreachable,
}
- try func.emitWValue(shl);
- _ = try func.cmp(shl_res, shr, ext_ty, .neq);
- try func.addTag(.select);
- try func.addLabel(.local_set, result.local.value);
- var shift_result = try func.binOp(result, shift_value, ext_ty, .shr);
+ try cg.emitWValue(shl);
+ _ = try cg.cmp(shl_res, shr, ext_ty, .neq);
+ try cg.addTag(.select);
+ try cg.addLabel(.local_set, result.local.value);
+ var shift_result = try cg.binOp(result, shift_value, ext_ty, .shr);
if (is_signed) {
- shift_result = try func.wrapOperand(shift_result, ty);
+ shift_result = try cg.wrapOperand(shift_result, ty);
}
- try func.addLabel(.local_set, result.local.value);
+ try cg.addLabel(.local_set, result.local.value);
}
- return func.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, result, &.{ bin_op.lhs, bin_op.rhs });
}
/// Calls a compiler-rt intrinsic by creating an undefined symbol,
@@ -7051,27 +7049,27 @@ fn airShlSat(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
/// passed as the first parameter.
/// May leave the return value on the stack.
fn callIntrinsic(
- func: *CodeGen,
+ cg: *CodeGen,
name: []const u8,
param_types: []const InternPool.Index,
return_type: Type,
args: []const WValue,
) InnerError!WValue {
assert(param_types.len == args.len);
- const wasm = func.wasm;
- const pt = func.pt;
+ const wasm = cg.wasm;
+ const pt = cg.pt;
const zcu = pt.zcu;
- const func_type_index = try genFunctype(wasm, .{ .wasm_watc = .{} }, param_types, return_type, pt, func.target);
+ const func_type_index = try genFunctype(wasm, .{ .wasm_watc = .{} }, param_types, return_type, pt, cg.target);
const func_index = wasm.getOutputFunction(try wasm.internString(name), func_type_index);
// Always pass over C-ABI
- const want_sret_param = firstParamSRet(.{ .wasm_watc = .{} }, return_type, pt, func.target);
+ const want_sret_param = firstParamSRet(.{ .wasm_watc = .{} }, return_type, pt, cg.target);
// if we want return as first param, we allocate a pointer to stack,
// and emit it as our first argument
const sret = if (want_sret_param) blk: {
- const sret_local = try func.allocStack(return_type);
- try func.lowerToStack(sret_local);
+ const sret_local = try cg.allocStack(return_type);
+ try cg.lowerToStack(sret_local);
break :blk sret_local;
} else .none;
@@ -7079,16 +7077,16 @@ fn callIntrinsic(
for (args, 0..) |arg, arg_i| {
assert(!(want_sret_param and arg == .stack));
assert(Type.fromInterned(param_types[arg_i]).hasRuntimeBitsIgnoreComptime(zcu));
- try func.lowerArg(.{ .wasm_watc = .{} }, Type.fromInterned(param_types[arg_i]), arg);
+ try cg.lowerArg(.{ .wasm_watc = .{} }, Type.fromInterned(param_types[arg_i]), arg);
}
// Actually call our intrinsic
- try func.addLabel(.call_func, func_index);
+ try cg.addLabel(.call_func, func_index);
if (!return_type.hasRuntimeBitsIgnoreComptime(zcu)) {
return .none;
} else if (return_type.isNoReturn(zcu)) {
- try func.addTag(.@"unreachable");
+ try cg.addTag(.@"unreachable");
return .none;
} else if (want_sret_param) {
return sret;
@@ -7097,31 +7095,31 @@ fn callIntrinsic(
}
}
-fn airTagName(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const un_op = func.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
- const operand = try func.resolveInst(un_op);
- const enum_ty = func.typeOf(un_op);
+fn airTagName(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const un_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
+ const operand = try cg.resolveInst(un_op);
+ const enum_ty = cg.typeOf(un_op);
- const result_ptr = try func.allocStack(func.typeOfIndex(inst));
- try func.lowerToStack(result_ptr);
- try func.emitWValue(operand);
- try func.addIpIndex(.call_tag_name, enum_ty.toIntern());
+ const result_ptr = try cg.allocStack(cg.typeOfIndex(inst));
+ try cg.lowerToStack(result_ptr);
+ try cg.emitWValue(operand);
+ try cg.addIpIndex(.call_tag_name, enum_ty.toIntern());
- return func.finishAir(inst, result_ptr, &.{un_op});
+ return cg.finishAir(inst, result_ptr, &.{un_op});
}
-fn airErrorSetHasValue(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airErrorSetHasValue(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
const ip = &zcu.intern_pool;
- const ty_op = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
+ const ty_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
- const operand = try func.resolveInst(ty_op.operand);
+ const operand = try cg.resolveInst(ty_op.operand);
const error_set_ty = ty_op.ty.toType();
- const result = try func.allocLocal(Type.bool);
+ const result = try cg.allocLocal(Type.bool);
const names = error_set_ty.errorSetNames(zcu);
- var values = try std.ArrayList(u32).initCapacity(func.gpa, names.len);
+ var values = try std.ArrayList(u32).initCapacity(cg.gpa, names.len);
defer values.deinit();
var lowest: ?u32 = null;
@@ -7147,23 +7145,23 @@ fn airErrorSetHasValue(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}
// start block for 'true' branch
- try func.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
// start block for 'false' branch
- try func.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
// block for the jump table itself
- try func.startBlock(.block, std.wasm.block_empty);
+ try cg.startBlock(.block, std.wasm.block_empty);
// lower operand to determine jump table target
- try func.emitWValue(operand);
- try func.addImm32(lowest.?);
- try func.addTag(.i32_sub);
+ try cg.emitWValue(operand);
+ try cg.addImm32(lowest.?);
+ try cg.addTag(.i32_sub);
// Account for default branch so always add '1'
const depth = @as(u32, @intCast(highest.? - lowest.? + 1));
const jump_table: Mir.JumpTable = .{ .length = depth };
- const table_extra_index = try func.addExtra(jump_table);
- try func.addInst(.{ .tag = .br_table, .data = .{ .payload = table_extra_index } });
- try func.mir_extra.ensureUnusedCapacity(func.gpa, depth);
+ const table_extra_index = try cg.addExtra(jump_table);
+ try cg.addInst(.{ .tag = .br_table, .data = .{ .payload = table_extra_index } });
+ try cg.mir_extra.ensureUnusedCapacity(cg.gpa, depth);
var value: u32 = lowest.?;
while (value <= highest.?) : (value += 1) {
@@ -7173,201 +7171,201 @@ fn airErrorSetHasValue(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
}
break :blk 0;
};
- func.mir_extra.appendAssumeCapacity(idx);
+ cg.mir_extra.appendAssumeCapacity(idx);
}
- try func.endBlock();
+ try cg.endBlock();
// 'false' branch (i.e. error set does not have value
// ensure we set local to 0 in case the local was re-used.
- try func.addImm32(0);
- try func.addLabel(.local_set, result.local.value);
- try func.addLabel(.br, 1);
- try func.endBlock();
+ try cg.addImm32(0);
+ try cg.addLabel(.local_set, result.local.value);
+ try cg.addLabel(.br, 1);
+ try cg.endBlock();
// 'true' branch
- try func.addImm32(1);
- try func.addLabel(.local_set, result.local.value);
- try func.addLabel(.br, 0);
- try func.endBlock();
+ try cg.addImm32(1);
+ try cg.addLabel(.local_set, result.local.value);
+ try cg.addLabel(.br, 0);
+ try cg.endBlock();
- return func.finishAir(inst, result, &.{ty_op.operand});
+ return cg.finishAir(inst, result, &.{ty_op.operand});
}
-inline fn useAtomicFeature(func: *const CodeGen) bool {
- return std.Target.wasm.featureSetHas(func.target.cpu.features, .atomics);
+inline fn useAtomicFeature(cg: *const CodeGen) bool {
+ return std.Target.wasm.featureSetHas(cg.target.cpu.features, .atomics);
}
-fn airCmpxchg(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airCmpxchg(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const ty_pl = func.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
- const extra = func.air.extraData(Air.Cmpxchg, ty_pl.payload).data;
+ const ty_pl = cg.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
+ const extra = cg.air.extraData(Air.Cmpxchg, ty_pl.payload).data;
- const ptr_ty = func.typeOf(extra.ptr);
+ const ptr_ty = cg.typeOf(extra.ptr);
const ty = ptr_ty.childType(zcu);
- const result_ty = func.typeOfIndex(inst);
+ const result_ty = cg.typeOfIndex(inst);
- const ptr_operand = try func.resolveInst(extra.ptr);
- const expected_val = try func.resolveInst(extra.expected_value);
- const new_val = try func.resolveInst(extra.new_value);
+ const ptr_operand = try cg.resolveInst(extra.ptr);
+ const expected_val = try cg.resolveInst(extra.expected_value);
+ const new_val = try cg.resolveInst(extra.new_value);
- const cmp_result = try func.allocLocal(Type.bool);
+ const cmp_result = try cg.allocLocal(Type.bool);
- const ptr_val = if (func.useAtomicFeature()) val: {
- const val_local = try func.allocLocal(ty);
- try func.emitWValue(ptr_operand);
- try func.lowerToStack(expected_val);
- try func.lowerToStack(new_val);
- try func.addAtomicMemArg(switch (ty.abiSize(zcu)) {
+ const ptr_val = if (cg.useAtomicFeature()) val: {
+ const val_local = try cg.allocLocal(ty);
+ try cg.emitWValue(ptr_operand);
+ try cg.lowerToStack(expected_val);
+ try cg.lowerToStack(new_val);
+ try cg.addAtomicMemArg(switch (ty.abiSize(zcu)) {
1 => .i32_atomic_rmw8_cmpxchg_u,
2 => .i32_atomic_rmw16_cmpxchg_u,
4 => .i32_atomic_rmw_cmpxchg,
8 => .i32_atomic_rmw_cmpxchg,
- else => |size| return func.fail("TODO: implement `@cmpxchg` for types with abi size '{d}'", .{size}),
+ else => |size| return cg.fail("TODO: implement `@cmpxchg` for types with abi size '{d}'", .{size}),
}, .{
.offset = ptr_operand.offset(),
.alignment = @intCast(ty.abiAlignment(zcu).toByteUnits().?),
});
- try func.addLabel(.local_tee, val_local.local.value);
- _ = try func.cmp(.stack, expected_val, ty, .eq);
- try func.addLabel(.local_set, cmp_result.local.value);
+ try cg.addLabel(.local_tee, val_local.local.value);
+ _ = try cg.cmp(.stack, expected_val, ty, .eq);
+ try cg.addLabel(.local_set, cmp_result.local.value);
break :val val_local;
} else val: {
if (ty.abiSize(zcu) > 8) {
- return func.fail("TODO: Implement `@cmpxchg` for types larger than abi size of 8 bytes", .{});
+ return cg.fail("TODO: Implement `@cmpxchg` for types larger than abi size of 8 bytes", .{});
}
- const ptr_val = try WValue.toLocal(try func.load(ptr_operand, ty, 0), func, ty);
+ const ptr_val = try WValue.toLocal(try cg.load(ptr_operand, ty, 0), cg, ty);
- try func.lowerToStack(ptr_operand);
- try func.lowerToStack(new_val);
- try func.emitWValue(ptr_val);
- _ = try func.cmp(ptr_val, expected_val, ty, .eq);
- try func.addLabel(.local_tee, cmp_result.local.value);
- try func.addTag(.select);
- try func.store(.stack, .stack, ty, 0);
+ try cg.lowerToStack(ptr_operand);
+ try cg.lowerToStack(new_val);
+ try cg.emitWValue(ptr_val);
+ _ = try cg.cmp(ptr_val, expected_val, ty, .eq);
+ try cg.addLabel(.local_tee, cmp_result.local.value);
+ try cg.addTag(.select);
+ try cg.store(.stack, .stack, ty, 0);
break :val ptr_val;
};
- const result = if (isByRef(result_ty, pt, func.target)) val: {
- try func.emitWValue(cmp_result);
- try func.addImm32(~@as(u32, 0));
- try func.addTag(.i32_xor);
- try func.addImm32(1);
- try func.addTag(.i32_and);
- const and_result = try WValue.toLocal(.stack, func, Type.bool);
- const result_ptr = try func.allocStack(result_ty);
- try func.store(result_ptr, and_result, Type.bool, @as(u32, @intCast(ty.abiSize(zcu))));
- try func.store(result_ptr, ptr_val, ty, 0);
+ const result = if (isByRef(result_ty, pt, cg.target)) val: {
+ try cg.emitWValue(cmp_result);
+ try cg.addImm32(~@as(u32, 0));
+ try cg.addTag(.i32_xor);
+ try cg.addImm32(1);
+ try cg.addTag(.i32_and);
+ const and_result = try WValue.toLocal(.stack, cg, Type.bool);
+ const result_ptr = try cg.allocStack(result_ty);
+ try cg.store(result_ptr, and_result, Type.bool, @as(u32, @intCast(ty.abiSize(zcu))));
+ try cg.store(result_ptr, ptr_val, ty, 0);
break :val result_ptr;
} else val: {
- try func.addImm32(0);
- try func.emitWValue(ptr_val);
- try func.emitWValue(cmp_result);
- try func.addTag(.select);
+ try cg.addImm32(0);
+ try cg.emitWValue(ptr_val);
+ try cg.emitWValue(cmp_result);
+ try cg.addTag(.select);
break :val .stack;
};
- return func.finishAir(inst, result, &.{ extra.ptr, extra.expected_value, extra.new_value });
+ return cg.finishAir(inst, result, &.{ extra.ptr, extra.expected_value, extra.new_value });
}
-fn airAtomicLoad(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
- const atomic_load = func.air.instructions.items(.data)[@intFromEnum(inst)].atomic_load;
- const ptr = try func.resolveInst(atomic_load.ptr);
- const ty = func.typeOfIndex(inst);
+fn airAtomicLoad(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
+ const atomic_load = cg.air.instructions.items(.data)[@intFromEnum(inst)].atomic_load;
+ const ptr = try cg.resolveInst(atomic_load.ptr);
+ const ty = cg.typeOfIndex(inst);
- if (func.useAtomicFeature()) {
+ if (cg.useAtomicFeature()) {
const tag: std.wasm.AtomicsOpcode = switch (ty.abiSize(pt.zcu)) {
1 => .i32_atomic_load8_u,
2 => .i32_atomic_load16_u,
4 => .i32_atomic_load,
8 => .i64_atomic_load,
- else => |size| return func.fail("TODO: @atomicLoad for types with abi size {d}", .{size}),
+ else => |size| return cg.fail("TODO: @atomicLoad for types with abi size {d}", .{size}),
};
- try func.emitWValue(ptr);
- try func.addAtomicMemArg(tag, .{
+ try cg.emitWValue(ptr);
+ try cg.addAtomicMemArg(tag, .{
.offset = ptr.offset(),
.alignment = @intCast(ty.abiAlignment(pt.zcu).toByteUnits().?),
});
} else {
- _ = try func.load(ptr, ty, 0);
+ _ = try cg.load(ptr, ty, 0);
}
- return func.finishAir(inst, .stack, &.{atomic_load.ptr});
+ return cg.finishAir(inst, .stack, &.{atomic_load.ptr});
}
-fn airAtomicRmw(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airAtomicRmw(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const pl_op = func.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
- const extra = func.air.extraData(Air.AtomicRmw, pl_op.payload).data;
+ const pl_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
+ const extra = cg.air.extraData(Air.AtomicRmw, pl_op.payload).data;
- const ptr = try func.resolveInst(pl_op.operand);
- const operand = try func.resolveInst(extra.operand);
- const ty = func.typeOfIndex(inst);
+ const ptr = try cg.resolveInst(pl_op.operand);
+ const operand = try cg.resolveInst(extra.operand);
+ const ty = cg.typeOfIndex(inst);
const op: std.builtin.AtomicRmwOp = extra.op();
- if (func.useAtomicFeature()) {
+ if (cg.useAtomicFeature()) {
switch (op) {
.Max,
.Min,
.Nand,
=> {
- const tmp = try func.load(ptr, ty, 0);
- const value = try tmp.toLocal(func, ty);
+ const tmp = try cg.load(ptr, ty, 0);
+ const value = try tmp.toLocal(cg, ty);
// create a loop to cmpxchg the new value
- try func.startBlock(.loop, std.wasm.block_empty);
+ try cg.startBlock(.loop, std.wasm.block_empty);
- try func.emitWValue(ptr);
- try func.emitWValue(value);
+ try cg.emitWValue(ptr);
+ try cg.emitWValue(value);
if (op == .Nand) {
const wasm_bits = toWasmBits(@intCast(ty.bitSize(zcu))).?;
- const and_res = try func.binOp(value, operand, ty, .@"and");
+ const and_res = try cg.binOp(value, operand, ty, .@"and");
if (wasm_bits == 32)
- try func.addImm32(~@as(u32, 0))
+ try cg.addImm32(~@as(u32, 0))
else if (wasm_bits == 64)
- try func.addImm64(~@as(u64, 0))
+ try cg.addImm64(~@as(u64, 0))
else
- return func.fail("TODO: `@atomicRmw` with operator `Nand` for types larger than 64 bits", .{});
- _ = try func.binOp(and_res, .stack, ty, .xor);
+ return cg.fail("TODO: `@atomicRmw` with operator `Nand` for types larger than 64 bits", .{});
+ _ = try cg.binOp(and_res, .stack, ty, .xor);
} else {
- try func.emitWValue(value);
- try func.emitWValue(operand);
- _ = try func.cmp(value, operand, ty, if (op == .Max) .gt else .lt);
- try func.addTag(.select);
+ try cg.emitWValue(value);
+ try cg.emitWValue(operand);
+ _ = try cg.cmp(value, operand, ty, if (op == .Max) .gt else .lt);
+ try cg.addTag(.select);
}
- try func.addAtomicMemArg(
+ try cg.addAtomicMemArg(
switch (ty.abiSize(zcu)) {
1 => .i32_atomic_rmw8_cmpxchg_u,
2 => .i32_atomic_rmw16_cmpxchg_u,
4 => .i32_atomic_rmw_cmpxchg,
8 => .i64_atomic_rmw_cmpxchg,
- else => return func.fail("TODO: implement `@atomicRmw` with operation `{s}` for types larger than 64 bits", .{@tagName(op)}),
+ else => return cg.fail("TODO: implement `@atomicRmw` with operation `{s}` for types larger than 64 bits", .{@tagName(op)}),
},
.{
.offset = ptr.offset(),
.alignment = @intCast(ty.abiAlignment(zcu).toByteUnits().?),
},
);
- const select_res = try func.allocLocal(ty);
- try func.addLabel(.local_tee, select_res.local.value);
- _ = try func.cmp(.stack, value, ty, .neq); // leave on stack so we can use it for br_if
+ const select_res = try cg.allocLocal(ty);
+ try cg.addLabel(.local_tee, select_res.local.value);
+ _ = try cg.cmp(.stack, value, ty, .neq); // leave on stack so we can use it for br_if
- try func.emitWValue(select_res);
- try func.addLabel(.local_set, value.local.value);
+ try cg.emitWValue(select_res);
+ try cg.addLabel(.local_set, value.local.value);
- try func.addLabel(.br_if, 0);
- try func.endBlock();
- return func.finishAir(inst, value, &.{ pl_op.operand, extra.operand });
+ try cg.addLabel(.br_if, 0);
+ try cg.endBlock();
+ return cg.finishAir(inst, value, &.{ pl_op.operand, extra.operand });
},
// the other operations have their own instructions for Wasm.
else => {
- try func.emitWValue(ptr);
- try func.emitWValue(operand);
+ try cg.emitWValue(ptr);
+ try cg.emitWValue(operand);
const tag: std.wasm.AtomicsOpcode = switch (ty.abiSize(zcu)) {
1 => switch (op) {
.Xchg => .i32_atomic_rmw8_xchg_u,
@@ -7405,22 +7403,22 @@ fn airAtomicRmw(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
.Xor => .i64_atomic_rmw_xor,
else => unreachable,
},
- else => |size| return func.fail("TODO: Implement `@atomicRmw` for types with abi size {d}", .{size}),
+ else => |size| return cg.fail("TODO: Implement `@atomicRmw` for types with abi size {d}", .{size}),
};
- try func.addAtomicMemArg(tag, .{
+ try cg.addAtomicMemArg(tag, .{
.offset = ptr.offset(),
.alignment = @intCast(ty.abiAlignment(zcu).toByteUnits().?),
});
- return func.finishAir(inst, .stack, &.{ pl_op.operand, extra.operand });
+ return cg.finishAir(inst, .stack, &.{ pl_op.operand, extra.operand });
},
}
} else {
- const loaded = try func.load(ptr, ty, 0);
- const result = try loaded.toLocal(func, ty);
+ const loaded = try cg.load(ptr, ty, 0);
+ const result = try loaded.toLocal(cg, ty);
switch (op) {
.Xchg => {
- try func.store(ptr, operand, ty, 0);
+ try cg.store(ptr, operand, ty, 0);
},
.Add,
.Sub,
@@ -7428,8 +7426,8 @@ fn airAtomicRmw(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
.Or,
.Xor,
=> {
- try func.emitWValue(ptr);
- _ = try func.binOp(result, operand, ty, switch (op) {
+ try cg.emitWValue(ptr);
+ _ = try cg.binOp(result, operand, ty, switch (op) {
.Add => .add,
.Sub => .sub,
.And => .@"and",
@@ -7438,87 +7436,87 @@ fn airAtomicRmw(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
else => unreachable,
});
if (ty.isInt(zcu) and (op == .Add or op == .Sub)) {
- _ = try func.wrapOperand(.stack, ty);
+ _ = try cg.wrapOperand(.stack, ty);
}
- try func.store(.stack, .stack, ty, ptr.offset());
+ try cg.store(.stack, .stack, ty, ptr.offset());
},
.Max,
.Min,
=> {
- try func.emitWValue(ptr);
- try func.emitWValue(result);
- try func.emitWValue(operand);
- _ = try func.cmp(result, operand, ty, if (op == .Max) .gt else .lt);
- try func.addTag(.select);
- try func.store(.stack, .stack, ty, ptr.offset());
+ try cg.emitWValue(ptr);
+ try cg.emitWValue(result);
+ try cg.emitWValue(operand);
+ _ = try cg.cmp(result, operand, ty, if (op == .Max) .gt else .lt);
+ try cg.addTag(.select);
+ try cg.store(.stack, .stack, ty, ptr.offset());
},
.Nand => {
const wasm_bits = toWasmBits(@intCast(ty.bitSize(zcu))).?;
- try func.emitWValue(ptr);
- const and_res = try func.binOp(result, operand, ty, .@"and");
+ try cg.emitWValue(ptr);
+ const and_res = try cg.binOp(result, operand, ty, .@"and");
if (wasm_bits == 32)
- try func.addImm32(~@as(u32, 0))
+ try cg.addImm32(~@as(u32, 0))
else if (wasm_bits == 64)
- try func.addImm64(~@as(u64, 0))
+ try cg.addImm64(~@as(u64, 0))
else
- return func.fail("TODO: `@atomicRmw` with operator `Nand` for types larger than 64 bits", .{});
- _ = try func.binOp(and_res, .stack, ty, .xor);
- try func.store(.stack, .stack, ty, ptr.offset());
+ return cg.fail("TODO: `@atomicRmw` with operator `Nand` for types larger than 64 bits", .{});
+ _ = try cg.binOp(and_res, .stack, ty, .xor);
+ try cg.store(.stack, .stack, ty, ptr.offset());
},
}
- return func.finishAir(inst, result, &.{ pl_op.operand, extra.operand });
+ return cg.finishAir(inst, result, &.{ pl_op.operand, extra.operand });
}
}
-fn airAtomicStore(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- const pt = func.pt;
+fn airAtomicStore(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ const pt = cg.pt;
const zcu = pt.zcu;
- const bin_op = func.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
+ const bin_op = cg.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
- const ptr = try func.resolveInst(bin_op.lhs);
- const operand = try func.resolveInst(bin_op.rhs);
- const ptr_ty = func.typeOf(bin_op.lhs);
+ const ptr = try cg.resolveInst(bin_op.lhs);
+ const operand = try cg.resolveInst(bin_op.rhs);
+ const ptr_ty = cg.typeOf(bin_op.lhs);
const ty = ptr_ty.childType(zcu);
- if (func.useAtomicFeature()) {
+ if (cg.useAtomicFeature()) {
const tag: std.wasm.AtomicsOpcode = switch (ty.abiSize(zcu)) {
1 => .i32_atomic_store8,
2 => .i32_atomic_store16,
4 => .i32_atomic_store,
8 => .i64_atomic_store,
- else => |size| return func.fail("TODO: @atomicLoad for types with abi size {d}", .{size}),
+ else => |size| return cg.fail("TODO: @atomicLoad for types with abi size {d}", .{size}),
};
- try func.emitWValue(ptr);
- try func.lowerToStack(operand);
- try func.addAtomicMemArg(tag, .{
+ try cg.emitWValue(ptr);
+ try cg.lowerToStack(operand);
+ try cg.addAtomicMemArg(tag, .{
.offset = ptr.offset(),
.alignment = @intCast(ty.abiAlignment(zcu).toByteUnits().?),
});
} else {
- try func.store(ptr, operand, ty, 0);
+ try cg.store(ptr, operand, ty, 0);
}
- return func.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
+ return cg.finishAir(inst, .none, &.{ bin_op.lhs, bin_op.rhs });
}
-fn airFrameAddress(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
- if (func.initial_stack_value == .none) {
- try func.initializeStack();
+fn airFrameAddress(cg: *CodeGen, inst: Air.Inst.Index) InnerError!void {
+ if (cg.initial_stack_value == .none) {
+ try cg.initializeStack();
}
- try func.emitWValue(func.bottom_stack_value);
- return func.finishAir(inst, .stack, &.{});
+ try cg.emitWValue(cg.bottom_stack_value);
+ return cg.finishAir(inst, .stack, &.{});
}
-fn typeOf(func: *CodeGen, inst: Air.Inst.Ref) Type {
- const pt = func.pt;
+fn typeOf(cg: *CodeGen, inst: Air.Inst.Ref) Type {
+ const pt = cg.pt;
const zcu = pt.zcu;
- return func.air.typeOf(inst, &zcu.intern_pool);
+ return cg.air.typeOf(inst, &zcu.intern_pool);
}
-fn typeOfIndex(func: *CodeGen, inst: Air.Inst.Index) Type {
- const pt = func.pt;
+fn typeOfIndex(cg: *CodeGen, inst: Air.Inst.Index) Type {
+ const pt = cg.pt;
const zcu = pt.zcu;
- return func.air.typeOfIndex(inst, &zcu.intern_pool);
+ return cg.air.typeOfIndex(inst, &zcu.intern_pool);
}