Wrong size for structs containing overaligned structs #1219

test/test_suite/struct/struct_union_inner_align.c3t

@@ -0,0 +1,43 @@
+// #target: macos-x64
+module test;
+
+union Test @align(16)
+{
+	char foo;
+}
+
+union Test3
+{
+	Test test;
+	ulong a @align(32);
+}
+
+struct Test2
+{
+	Test test;
+	uint a;
+}
+
+fn int main()
+{
+	Test2 a;
+	Test b;
+	Test3 c;
+	$assert(32 == Test3.sizeof);
+	$assert(32 == Test3.alignof);
+	$assert(32 == Test2.sizeof);
+	$assert(16 == Test2.alignof);
+	$assert(16 == Test.sizeof);
+	$assert(16 == Test.alignof);
+	return 0;
+}
+
+/* #expect: test.ll
+
+%Test2 = type { %Test, i32, [12 x i8] }
+%Test = type { i8, [15 x i8] }
+%Test3 = type { i64, [24 x i8] }
+
+  %a = alloca %Test2, align 16
+  %b = alloca %Test, align 16
+  %c = alloca %Test3, align 32