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Sema: resolve lazy align in zirReify for union fields

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Closes #13435
This commit is contained in:
Micah Switzer 2022-11-03 19:56:23 -04:00 committed by Veikka Tuominen
parent cbed6bb085
commit ea54c9a375
3 changed files with 24 additions and 1 deletions
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2
src/Sema.zig
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@ -18232,7 +18232,7 @@ fn zirReify(sema: *Sema, block: *Block, extended: Zir.Inst.Extended.InstData, in
var buffer: Value.ToTypeBuffer = undefined;
gop.value_ptr.* = .{
.ty = try field_type_val.toType(&buffer).copy(new_decl_arena_allocator),
.abi_align = @intCast(u32, alignment_val.toUnsignedInt(target)),
.abi_align = @intCast(u32, (try alignment_val.getUnsignedIntAdvanced(target, sema.kit(block, src))).?),
};
}

1
test/behavior.zig
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@ -111,6 +111,7 @@ test {
_ = @import("behavior/bugs/13159.zig");
_ = @import("behavior/bugs/13171.zig");
_ = @import("behavior/bugs/13285.zig");
_ = @import("behavior/bugs/13435.zig");
_ = @import("behavior/byteswap.zig");
_ = @import("behavior/byval_arg_var.zig");
_ = @import("behavior/call.zig");

22
test/behavior/bugs/13435.zig Normal file
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@ -0,0 +1,22 @@
const std = @import("std");
fn CreateUnion(comptime T: type) type {
return @Type(.{
.Union = .{
.layout = .Auto,
.tag_type = null,
.fields = &[_]std.builtin.Type.UnionField{
.{
.name = "field",
.field_type = T,
.alignment = @alignOf(T),
},
},
.decls = &[_]std.builtin.Type.Declaration{},
},
});
}
test {
_ = CreateUnion(struct {});
}