Commit 3ed9155f10
Changed files (2)
src
test
cases
compile_errors
src/Sema.zig
@@ -2287,19 +2287,6 @@ fn resolveValueResolveLazy(sema: *Sema, inst: Air.Inst.Ref) CompileError!?Value
return try sema.resolveLazyValue((try sema.resolveValue(inst)) orelse return null);
}
-/// Like `resolveValue`, but any pointer value which does not correspond
-/// to a comptime-known integer (e.g. a decl pointer) returns `null`.
-/// Lazy values are recursively resolved.
-fn resolveValueIntable(sema: *Sema, inst: Air.Inst.Ref) CompileError!?Value {
- const val = (try sema.resolveValue(inst)) orelse return null;
- if (sema.pt.zcu.intern_pool.getBackingAddrTag(val.toIntern())) |addr| switch (addr) {
- .nav, .uav, .comptime_alloc, .comptime_field => return null,
- .int => {},
- .eu_payload, .opt_payload, .arr_elem, .field => unreachable,
- };
- return try sema.resolveLazyValue(val);
-}
-
/// Value Tag may be `undef` or `variable`.
pub fn resolveFinalDeclValue(
sema: *Sema,
@@ -10144,14 +10131,19 @@ fn zirIntFromPtr(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!
}
const len = if (is_vector) operand_ty.vectorLen(zcu) else undefined;
const dest_ty: Type = if (is_vector) try pt.vectorType(.{ .child = .usize_type, .len = len }) else .usize;
- if (try sema.resolveValueIntable(operand)) |operand_val| ct: {
+
+ if (try sema.resolveValue(operand)) |operand_val| ct: {
if (!is_vector) {
if (operand_val.isUndef(zcu)) {
return Air.internedToRef((try pt.undefValue(Type.usize)).toIntern());
}
+ const addr = try operand_val.getUnsignedIntSema(pt) orelse {
+ // Wasn't an integer pointer. This is a runtime operation.
+ break :ct;
+ };
return Air.internedToRef((try pt.intValue(
Type.usize,
- (try operand_val.toUnsignedIntSema(pt)),
+ addr,
)).toIntern());
}
const new_elems = try sema.arena.alloc(InternPool.Index, len);
test/cases/compile_errors/int_from_ptr_to_optional.zig
@@ -0,0 +1,13 @@
+comptime {
+ const num: usize = 4;
+ const y: ?*const usize = #
+ _ = @intFromPtr(y);
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :4:9: error: unable to evaluate comptime expression
+// :4:21: note: operation is runtime due to this operand
+// :1:1: note: 'comptime' keyword forces comptime evaluation