Commit d4a0d5f959

Andrew Kelley <andrew@ziglang.org>
2022-03-15 23:09:23
Sema: implement `@truncate` for SIMD vectors
1 parent ea4d275
src/Compilation.zig
@@ -4513,8 +4513,6 @@ pub fn generateBuiltinZigSource(comp: *Compilation, allocator: Allocator) Alloca
     const target = comp.getTarget();
     const generic_arch_name = target.cpu.arch.genericName();
     const use_stage1 = build_options.is_stage1 and comp.bin_file.options.use_stage1;
-    const stage2_x86_cx16 = target.cpu.arch == .x86_64 and
-        std.Target.x86.featureSetHas(target.cpu.features, .cx16);
 
     const zig_backend: std.builtin.CompilerBackend = blk: {
         if (use_stage1) break :blk .stage1;
@@ -4540,8 +4538,6 @@ pub fn generateBuiltinZigSource(comp: *Compilation, allocator: Allocator) Alloca
         \\pub const zig_backend = std.builtin.CompilerBackend.{};
         \\/// Temporary until self-hosted supports the `cpu.arch` value.
         \\pub const stage2_arch: std.Target.Cpu.Arch = .{};
-        \\/// Temporary until self-hosted can call `std.Target.x86.featureSetHas` at comptime.
-        \\pub const stage2_x86_cx16 = {};
         \\
         \\pub const output_mode = std.builtin.OutputMode.{};
         \\pub const link_mode = std.builtin.LinkMode.{};
@@ -4557,7 +4553,6 @@ pub fn generateBuiltinZigSource(comp: *Compilation, allocator: Allocator) Alloca
         build_options.version,
         std.zig.fmtId(@tagName(zig_backend)),
         std.zig.fmtId(@tagName(target.cpu.arch)),
-        stage2_x86_cx16,
         std.zig.fmtId(@tagName(comp.bin_file.options.output_mode)),
         std.zig.fmtId(@tagName(comp.bin_file.options.link_mode)),
         comp.bin_file.options.is_test,
src/Sema.zig
@@ -13229,35 +13229,54 @@ fn zirTruncate(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai
     const dest_ty_src: LazySrcLoc = .{ .node_offset_builtin_call_arg0 = inst_data.src_node };
     const operand_src: LazySrcLoc = .{ .node_offset_builtin_call_arg1 = inst_data.src_node };
     const extra = sema.code.extraData(Zir.Inst.Bin, inst_data.payload_index).data;
-    const dest_ty = try sema.resolveType(block, dest_ty_src, extra.lhs);
+    const dest_scalar_ty = try sema.resolveType(block, dest_ty_src, extra.lhs);
     const operand = sema.resolveInst(extra.rhs);
+    const dest_is_comptime_int = try sema.checkIntType(block, dest_ty_src, dest_scalar_ty);
+    const operand_scalar_ty = try sema.checkIntOrVectorAllowComptime(block, operand, operand_src);
     const operand_ty = sema.typeOf(operand);
-    const dest_is_comptime_int = try sema.checkIntType(block, dest_ty_src, dest_ty);
-    const src_is_comptime_int = try sema.checkIntType(block, operand_src, operand_ty);
+    const is_vector = operand_ty.zigTypeTag() == .Vector;
+    const dest_ty = if (is_vector)
+        try Type.vector(sema.arena, operand_ty.vectorLen(), dest_scalar_ty)
+    else
+        dest_scalar_ty;
 
     if (dest_is_comptime_int) {
         return sema.coerce(block, dest_ty, operand, operand_src);
     }
 
     const target = sema.mod.getTarget();
-    const dest_info = dest_ty.intInfo(target);
+    const dest_info = dest_scalar_ty.intInfo(target);
 
     if (dest_info.bits == 0) {
-        return sema.addConstant(dest_ty, Value.zero);
+        if (is_vector) {
+            return sema.addConstant(
+                dest_ty,
+                try Value.Tag.repeated.create(sema.arena, Value.zero),
+            );
+        } else {
+            return sema.addConstant(dest_ty, Value.zero);
+        }
     }
 
-    if (!src_is_comptime_int) {
-        const src_info = operand_ty.intInfo(target);
-        if (src_info.bits == 0) {
-            return sema.addConstant(dest_ty, Value.zero);
+    if (operand_scalar_ty.zigTypeTag() != .ComptimeInt) {
+        const operand_info = operand_ty.intInfo(target);
+        if (operand_info.bits == 0) {
+            if (is_vector) {
+                return sema.addConstant(
+                    dest_ty,
+                    try Value.Tag.repeated.create(sema.arena, Value.zero),
+                );
+            } else {
+                return sema.addConstant(dest_ty, Value.zero);
+            }
         }
 
-        if (src_info.signedness != dest_info.signedness) {
+        if (operand_info.signedness != dest_info.signedness) {
             return sema.fail(block, operand_src, "expected {s} integer type, found '{}'", .{
                 @tagName(dest_info.signedness), operand_ty,
             });
         }
-        if (src_info.bits > 0 and src_info.bits < dest_info.bits) {
+        if (operand_info.bits < dest_info.bits) {
             const msg = msg: {
                 const msg = try sema.errMsg(
                     block,
@@ -13269,8 +13288,8 @@ fn zirTruncate(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai
                 try sema.errNote(block, dest_ty_src, msg, "destination type has {d} bits", .{
                     dest_info.bits,
                 });
-                try sema.errNote(block, operand_src, msg, "source type has {d} bits", .{
-                    src_info.bits,
+                try sema.errNote(block, operand_src, msg, "operand type has {d} bits", .{
+                    operand_info.bits,
                 });
                 break :msg msg;
             };
@@ -13280,7 +13299,22 @@ fn zirTruncate(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai
 
     if (try sema.resolveMaybeUndefVal(block, operand_src, operand)) |val| {
         if (val.isUndef()) return sema.addConstUndef(dest_ty);
-        return sema.addConstant(dest_ty, try val.intTrunc(sema.arena, dest_info.signedness, dest_info.bits));
+        if (!is_vector) {
+            return sema.addConstant(
+                dest_ty,
+                try val.intTrunc(sema.arena, dest_info.signedness, dest_info.bits),
+            );
+        }
+        var elem_buf: Value.ElemValueBuffer = undefined;
+        const elems = try sema.arena.alloc(Value, operand_ty.vectorLen());
+        for (elems) |*elem, i| {
+            const elem_val = val.elemValueBuffer(i, &elem_buf);
+            elem.* = try elem_val.intTrunc(sema.arena, dest_info.signedness, dest_info.bits);
+        }
+        return sema.addConstant(
+            dest_ty,
+            try Value.Tag.aggregate.create(sema.arena, elems),
+        );
     }
 
     try sema.requireRuntimeBlock(block, src);
@@ -13330,13 +13364,13 @@ fn zirBitCount(
     const operand_src: LazySrcLoc = .{ .node_offset_builtin_call_arg1 = inst_data.src_node };
     const operand = sema.resolveInst(inst_data.operand);
     const operand_ty = sema.typeOf(operand);
-    try checkIntOrVector(sema, block, operand, operand_src);
+    _ = try checkIntOrVector(sema, block, operand, operand_src);
     const target = sema.mod.getTarget();
     const bits = operand_ty.intInfo(target).bits;
     if (bits == 0) {
         switch (operand_ty.zigTypeTag()) {
             .Vector => return sema.addConstant(
-                try Type.vector(sema.arena, operand_ty.arrayLen(), Type.comptime_int),
+                try Type.vector(sema.arena, operand_ty.vectorLen(), Type.comptime_int),
                 try Value.Tag.repeated.create(sema.arena, Value.zero),
             ),
             .Int => return Air.Inst.Ref.zero,
@@ -13512,7 +13546,7 @@ fn checkNamespaceType(sema: *Sema, block: *Block, src: LazySrcLoc, ty: Type) Com
 
 /// Returns `true` if the type was a comptime_int.
 fn checkIntType(sema: *Sema, block: *Block, src: LazySrcLoc, ty: Type) CompileError!bool {
-    switch (ty.zigTypeTag()) {
+    switch (try ty.zigTypeTagOrPoison()) {
         .ComptimeInt => return true,
         .Int => return false,
         else => return sema.fail(block, src, "expected integer type, found '{}'", .{ty}),
@@ -13714,11 +13748,43 @@ fn checkIntOrVector(
     block: *Block,
     operand: Air.Inst.Ref,
     operand_src: LazySrcLoc,
-) CompileError!void {
+) CompileError!Type {
     const operand_ty = sema.typeOf(operand);
-    const operand_zig_ty_tag = try operand_ty.zigTypeTagOrPoison();
-    switch (operand_zig_ty_tag) {
-        .Vector, .Int => return,
+    switch (try operand_ty.zigTypeTagOrPoison()) {
+        .Int => return operand_ty,
+        .Vector => {
+            const elem_ty = operand_ty.childType();
+            switch (try elem_ty.zigTypeTagOrPoison()) {
+                .Int => return elem_ty,
+                else => return sema.fail(block, operand_src, "expected vector of integers; found vector of '{}'", .{
+                    elem_ty,
+                }),
+            }
+        },
+        else => return sema.fail(block, operand_src, "expected integer or vector, found '{}'", .{
+            operand_ty,
+        }),
+    }
+}
+
+fn checkIntOrVectorAllowComptime(
+    sema: *Sema,
+    block: *Block,
+    operand: Air.Inst.Ref,
+    operand_src: LazySrcLoc,
+) CompileError!Type {
+    const operand_ty = sema.typeOf(operand);
+    switch (try operand_ty.zigTypeTagOrPoison()) {
+        .Int, .ComptimeInt => return operand_ty,
+        .Vector => {
+            const elem_ty = operand_ty.childType();
+            switch (try elem_ty.zigTypeTagOrPoison()) {
+                .Int, .ComptimeInt => return elem_ty,
+                else => return sema.fail(block, operand_src, "expected vector of integers; found vector of '{}'", .{
+                    elem_ty,
+                }),
+            }
+        },
         else => return sema.fail(block, operand_src, "expected integer or vector, found '{}'", .{
             operand_ty,
         }),
test/behavior/bugs/6456.zig
@@ -1,3 +1,4 @@
+const builtin = @import("builtin");
 const std = @import("std");
 const testing = std.testing;
 const StructField = std.builtin.Type.StructField;
@@ -10,6 +11,12 @@ const text =
 ;
 
 test "issue 6456" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     comptime {
         var fields: []const StructField = &[0]StructField{};
 
test/behavior/atomics.zig
@@ -4,6 +4,12 @@ const expect = std.testing.expect;
 const expectEqual = std.testing.expectEqual;
 
 test "cmpxchg" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     try testCmpxchg();
     comptime try testCmpxchg();
 }
@@ -26,12 +32,24 @@ fn testCmpxchg() !void {
 }
 
 test "fence" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     var x: i32 = 1234;
     @fence(.SeqCst);
     x = 5678;
 }
 
 test "atomicrmw and atomicload" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     var data: u8 = 200;
     try testAtomicRmw(&data);
     try expect(data == 42);
@@ -55,6 +73,12 @@ fn testAtomicLoad(ptr: *u8) !void {
 }
 
 test "cmpxchg with ptr" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     var data1: i32 = 1234;
     var data2: i32 = 5678;
     var data3: i32 = 9101;
@@ -75,6 +99,12 @@ test "cmpxchg with ptr" {
 }
 
 test "cmpxchg with ignored result" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     var x: i32 = 1234;
 
     _ = @cmpxchgStrong(i32, &x, 1234, 5678, .Monotonic, .Monotonic);
@@ -83,19 +113,20 @@ test "cmpxchg with ignored result" {
 }
 
 test "128-bit cmpxchg" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
+    if (builtin.cpu.arch != .x86_64) return error.SkipZigTest;
+    if (comptime !std.Target.x86.featureSetHas(builtin.cpu.features, .cx16)) return error.SkipZigTest;
+
     try test_u128_cmpxchg();
     comptime try test_u128_cmpxchg();
 }
 
 fn test_u128_cmpxchg() !void {
-    if (builtin.zig_backend != .stage1) {
-        if (builtin.cpu.arch != .x86_64) return error.SkipZigTest;
-        if (!builtin.stage2_x86_cx16) return error.SkipZigTest;
-    } else {
-        if (builtin.cpu.arch != .x86_64) return error.SkipZigTest;
-        if (comptime !std.Target.x86.featureSetHas(builtin.cpu.features, .cx16)) return error.SkipZigTest;
-    }
-
     var x: u128 = 1234;
     if (@cmpxchgWeak(u128, &x, 99, 5678, .SeqCst, .SeqCst)) |x1| {
         try expect(x1 == 1234);
@@ -115,6 +146,12 @@ fn test_u128_cmpxchg() !void {
 var a_global_variable = @as(u32, 1234);
 
 test "cmpxchg on a global variable" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     if ((builtin.zig_backend == .stage1 or builtin.zig_backend == .stage2_llvm) and
         builtin.cpu.arch == .aarch64)
     {
@@ -127,6 +164,12 @@ test "cmpxchg on a global variable" {
 }
 
 test "atomic load and rmw with enum" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     const Value = enum(u8) { a, b, c };
     var x = Value.a;
 
@@ -139,6 +182,12 @@ test "atomic load and rmw with enum" {
 }
 
 test "atomic store" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     var x: u32 = 0;
     @atomicStore(u32, &x, 1, .SeqCst);
     try expect(@atomicLoad(u32, &x, .SeqCst) == 1);
@@ -147,6 +196,12 @@ test "atomic store" {
 }
 
 test "atomic store comptime" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     comptime try testAtomicStore();
     try testAtomicStore();
 }
@@ -160,6 +215,12 @@ fn testAtomicStore() !void {
 }
 
 test "atomicrmw with floats" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     if ((builtin.zig_backend == .stage1 or builtin.zig_backend == .stage2_llvm) and
         builtin.cpu.arch == .aarch64)
     {
@@ -182,6 +243,12 @@ fn testAtomicRmwFloat() !void {
 }
 
 test "atomicrmw with ints" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     try testAtomicRmwInt();
     comptime try testAtomicRmwInt();
 }
@@ -210,6 +277,12 @@ fn testAtomicRmwInt() !void {
 }
 
 test "atomics with different types" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     try testAtomicsWithType(bool, true, false);
 
     try testAtomicsWithType(u1, 0, 1);
test/behavior/const_slice_child.zig
@@ -1,3 +1,4 @@
+const builtin = @import("builtin");
 const std = @import("std");
 const debug = std.debug;
 const testing = std.testing;
@@ -6,6 +7,10 @@ const expect = testing.expect;
 var argv: [*]const [*]const u8 = undefined;
 
 test "const slice child" {
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+
     const strs = [_][*]const u8{ "one", "two", "three" };
     argv = &strs;
     try bar(strs.len);
@@ -19,8 +24,8 @@ fn foo(args: [][]const u8) !void {
 }
 
 fn bar(argc: usize) !void {
-    const args = testing.allocator.alloc([]const u8, argc) catch unreachable;
-    defer testing.allocator.free(args);
+    var args_buffer: [10][]const u8 = undefined;
+    const args = args_buffer[0..argc];
     for (args) |_, i| {
         const ptr = argv[i];
         args[i] = ptr[0..strlen(ptr)];
test/behavior/truncate.zig
@@ -62,7 +62,16 @@ test "truncate on comptime integer" {
 }
 
 test "truncate on vectors" {
-    if (builtin.zig_backend != .stage1) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage1) {
+        // stage1 fails the comptime test
+        return error.SkipZigTest;
+    }
+
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
 
     const S = struct {
         fn doTheTest() !void {
@@ -71,5 +80,6 @@ test "truncate on vectors" {
             try expect(std.mem.eql(u8, &@as([4]u8, v2), &[4]u8{ 0xbb, 0xdd, 0xff, 0x22 }));
         }
     };
+    comptime try S.doTheTest();
     try S.doTheTest();
 }
test/behavior.zig
@@ -4,6 +4,7 @@ test {
     _ = @import("behavior/align.zig");
     _ = @import("behavior/alignof.zig");
     _ = @import("behavior/array.zig");
+    _ = @import("behavior/atomics.zig");
     _ = @import("behavior/basic.zig");
     _ = @import("behavior/bit_shifting.zig");
     _ = @import("behavior/bitcast.zig");
@@ -55,6 +56,7 @@ test {
     _ = @import("behavior/bugs/5413.zig");
     _ = @import("behavior/bugs/5474.zig");
     _ = @import("behavior/bugs/5487.zig");
+    _ = @import("behavior/bugs/6456.zig");
     _ = @import("behavior/bugs/6850.zig");
     _ = @import("behavior/bugs/7003.zig");
     _ = @import("behavior/bugs/7047.zig");
@@ -67,6 +69,7 @@ test {
     _ = @import("behavior/call.zig");
     _ = @import("behavior/cast.zig");
     _ = @import("behavior/comptime_memory.zig");
+    _ = @import("behavior/const_slice_child.zig");
     _ = @import("behavior/defer.zig");
     _ = @import("behavior/enum.zig");
     _ = @import("behavior/error.zig");
@@ -147,7 +150,6 @@ test {
 
         if (builtin.zig_backend != .stage2_c) {
             // Tests that pass for stage1 and the llvm backend.
-            _ = @import("behavior/atomics.zig");
             _ = @import("behavior/export.zig");
             _ = @import("behavior/maximum_minimum.zig");
             _ = @import("behavior/saturating_arithmetic.zig");
@@ -168,10 +170,8 @@ test {
                 _ = @import("behavior/bugs/920.zig");
                 _ = @import("behavior/bugs/1120.zig");
                 _ = @import("behavior/bugs/1851.zig");
-                _ = @import("behavior/bugs/6456.zig");
                 _ = @import("behavior/bugs/6781.zig");
                 _ = @import("behavior/bugs/7027.zig");
-                _ = @import("behavior/const_slice_child.zig");
                 _ = @import("behavior/select.zig");
                 _ = @import("behavior/struct_contains_slice_of_itself.zig");
                 _ = @import("behavior/typename.zig");