1 // RUN: %clang_cc1 -triple i686-pc-win32 -disable-llvm-passes -emit-llvm -o - -O1 %s | FileCheck %s -check-prefixes=CHECK,OLD-PATH
2 // RUN: %clang_cc1 -triple i686-pc-win32 -disable-llvm-passes -emit-llvm -new-struct-path-tbaa -o - -O1 %s | FileCheck %s -check-prefixes=CHECK,NEW-PATH
3 //
4 // Test that TBAA works in the Microsoft C++ ABI. We used to error out while
5 // attempting to mangle RTTI.
6
7 struct StructA {
8 int a;
9 };
10
11 struct StructB : virtual StructA {
12 StructB();
13 };
14
StructB()15 StructB::StructB() {
16 a = 42;
17 // CHECK: store i32 42, i32* {{.*}}, !tbaa [[TAG_A_i32:!.*]]
18 }
19
20 // OLD-PATH: [[TYPE_INT:!.*]] = !{!"int", [[TYPE_CHAR:!.*]], i64 0}
21 // OLD-PATH: [[TYPE_CHAR]] = !{!"omnipotent char", !
22 // OLD-PATH: [[TAG_A_i32]] = !{[[TYPE_A:!.*]], [[TYPE_INT]], i64 0}
23 // OLD-PATH: [[TYPE_A]] = !{!"?AUStructA@@", [[TYPE_INT]], i64 0}
24 // NEW-PATH: [[TYPE_INT:!.*]] = !{[[TYPE_CHAR:!.*]], i64 4, !"int"}
25 // NEW-PATH: [[TYPE_CHAR]] = !{{{.*}}, i64 1, !"omnipotent char"}
26 // NEW-PATH: [[TAG_A_i32]] = !{[[TYPE_A:!.*]], [[TYPE_INT]], i64 0, i64 4}
27 // NEW-PATH: [[TYPE_A]] = !{[[TYPE_CHAR]], i64 4, !"?AUStructA@@", [[TYPE_INT]], i64 0, i64 4}
28