21 lines
754 B
C++
21 lines
754 B
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s
|
|
// Test TBAA metadata generated by front-end (vector types are always treated as mayalias).
|
|
|
|
typedef float __m128 __attribute__ ((__vector_size__ (16)));
|
|
|
|
struct A {
|
|
__m128 a, b;
|
|
};
|
|
|
|
void foo(A *a, __m128 v) {
|
|
// CHECK-LABEL: define{{.*}} void @_Z3fooP1ADv4_f
|
|
a->a = v;
|
|
// CHECK: store <4 x float> %v, <4 x float>* %{{.*}}, align 16, !tbaa [[TAG_char:!.*]]
|
|
// CHECK: store <4 x float> %{{.*}}, <4 x float>* %{{.*}}, align 16, !tbaa [[TAG_char]]
|
|
}
|
|
|
|
// CHECK: [[TYPE_char:!.*]] = !{!"omnipotent char", [[TAG_cxx_tbaa:!.*]],
|
|
// CHECK: [[TAG_cxx_tbaa]] = !{!"Simple C++ TBAA"}
|
|
// CHECK: [[TAG_char]] = !{[[TYPE_char]], [[TYPE_char]], i64 0}
|
|
|