| // RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s \ |
| // RUN: -emit-llvm -o - | FileCheck %s |
| // |
| // Check that we generate correct TBAA information for lvalues constructed |
| // with use of casts. |
| |
| struct V { |
| unsigned n; |
| }; |
| |
| struct S { |
| char bytes[4]; |
| }; |
| |
| void foo(S *p) { |
| // CHECK-LABEL: _Z3fooP1S |
| // CHECK: store i32 5, {{.*}}, !tbaa [[TAG_V_n:!.*]] |
| ((V*)p->bytes)->n = 5; |
| } |
| |
| // CHECK-DAG: [[TAG_V_n]] = !{[[TYPE_V:!.*]], [[TYPE_int:!.*]], i64 0} |
| // CHECK-DAG: [[TYPE_V]] = !{!"_ZTS1V", !{{.*}}, i64 0} |
| // CHECK-DAG: [[TYPE_int]] = !{!"int", !{{.*}}, i64 0} |
