Merge pull request 'Sema: initialize OPV comptime allocs correctly' (#30043) from reify-empty-struct into master

Reviewed-on: https://codeberg.org/ziglang/zig/pulls/30043

2 files changed, 4 insertions, 2 deletions

diff --git a/src/Sema.zig b/src/Sema.zig
index 324f1b6867..d31447544c 100644
--- a/src/Sema.zig
+++ b/src/Sema.zig
@@ -175,9 +175,11 @@ const ComptimeAlloc = struct {
 
 /// `src` may be `null` if `is_const` will be set.
 fn newComptimeAlloc(sema: *Sema, block: *Block, src: LazySrcLoc, ty: Type, alignment: Alignment) !ComptimeAllocIndex {
+    const pt = sema.pt;
+    const init_val = try sema.typeHasOnePossibleValue(ty) orelse try pt.undefValue(ty);
     const idx = sema.comptime_allocs.items.len;
     try sema.comptime_allocs.append(sema.gpa, .{
-        .val = .{ .interned = try sema.pt.intern(.{ .undef = ty.toIntern() }) },
+        .val = .{ .interned = init_val.toIntern() },
         .is_const = false,
         .src = src,
         .alignment = alignment,
diff --git a/src/print_zir.zig b/src/print_zir.zig
index 316632f2d3..78b451a3f1 100644
--- a/src/print_zir.zig
+++ b/src/print_zir.zig
@@ -595,7 +595,7 @@ const Writer = struct {
             },
 
             .reify_slice_arg_ty => {
-                const reify_slice_arg_info: Zir.Inst.ReifySliceArgInfo = @enumFromInt(extended.operand);
+                const reify_slice_arg_info: Zir.Inst.ReifySliceArgInfo = @enumFromInt(extended.small);
                 const extra = self.code.extraData(Zir.Inst.UnNode, extended.operand).data;
                 try stream.print("{t}, ", .{reify_slice_arg_info});
                 try self.writeInstRef(stream, extra.operand);