Sema: allow optional pointers in packed structs

Closes #12572

1 files changed, 12 insertions, 0 deletions

diff --git a/test/behavior/packed-struct.zig b/test/behavior/packed-struct.zig
index 8c34f5741b..540914bd25 100644
--- a/test/behavior/packed-struct.zig
+++ b/test/behavior/packed-struct.zig
@@ -434,3 +434,15 @@ test "@ptrToInt on a packed struct field" {
     };
     try expect(@ptrToInt(&S.p0.z) - @ptrToInt(&S.p0.x) == 2);
 }
+
+test "optional pointer in packed struct" {
+    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;
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
+
+    const T = packed struct { ptr: ?*const u8 };
+    var n: u8 = 0;
+    const x = T{ .ptr = &n };
+    try expect(x.ptr.? == &n);
+}