| Ivan A. Kosarev | b75a50b | 2017-09-26 14:22:48 +0000 | [diff] [blame^] | 1 | // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s |
| 2 | // |
| 3 | // Check that we generate correct TBAA information for reference accesses. |
| 4 | |
| 5 | struct S; |
| 6 | |
| 7 | struct B { |
| 8 | S &s; |
| 9 | B(S &s) : s(s) {} |
| 10 | void bar(); |
| 11 | }; |
| 12 | |
| 13 | void foo(S &s) { |
| 14 | B b(s); |
| 15 | b.bar(); |
| 16 | } |
| 17 | |
| 18 | // CHECK-LABEL: _Z3fooR1S |
| 19 | // Check initialization of the reference parameter in foo(). |
| 20 | // CHECK: store %struct.S* {{.*}}, %struct.S** {{.*}}, !tbaa [[TAG_pointer:!.*]] |
| 21 | // |
| 22 | // CHECK-LABEL: _ZN1BC2ER1S |
| 23 | // TODO: Check loading of the reference parameter in B::B(S&). |
| 24 | // Check initialization of B::s in B::B(S&). |
| 25 | // CHECK: store %struct.S* {{.*}}, %struct.S** {{.*}}, !tbaa [[TAG_pointer]] |
| 26 | // |
| 27 | // CHECK-DAG: [[TAG_pointer]] = !{[[TYPE_pointer:!.*]], [[TYPE_pointer]], i64 0} |
| 28 | // CHECK-DAG: [[TYPE_pointer]] = !{!"any pointer", [[TYPE_char:!.*]], i64 0} |
| 29 | // CHECK-DAG: [[TYPE_char]] = !{!"omnipotent char", {{!.*}}, i64 0} |