1 // RUN: %clang_cc1 -triple i686-pc-win32 -disable-llvm-optzns -emit-llvm -o - -O1 %s | FileCheck %s
2 //
3 // Test that TBAA works in the Microsoft C++ ABI. We used to error out while
4 // attempting to mangle RTTI.
5
6 struct StructA {
7 int a;
8 };
9
10 struct StructB : virtual StructA {
11 StructB();
12 };
13
StructB()14 StructB::StructB() {
15 a = 42;
16 // CHECK: store i32 42, i32* {{.*}}, !tbaa [[TAG_A_i32:!.*]]
17 }
18
19 // CHECK: [[TYPE_INT:!.*]] = !{!"int", [[TYPE_CHAR:!.*]], i64 0}
20 // CHECK: [[TYPE_CHAR]] = !{!"omnipotent char", !
21 // CHECK: [[TAG_A_i32]] = !{[[TYPE_A:!.*]], [[TYPE_INT]], i64 0}
22 // CHECK: [[TYPE_A]] = !{!"?AUStructA@@", [[TYPE_INT]], i64 0}
23