tbaa-struct.cpp revision 436e825809519a7ff6d99c3177b7f64ab96a057c 
1// RUN: %clang_cc1 -emit-llvm -o - -O1 %s | FileCheck %s
2//
3// Check that we generate !tbaa.struct metadata for struct copies.
4struct A {
5  short s;
6  int i;
7  char c;
8  int j;
9};
10
11void copy(struct A *a, struct A *b) {
12  *a = *b;
13}
14
15// CHECK: target datalayout = "{{.*}}p:[[P:64|32]]
16// CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 16, i32 4, i1 false), !tbaa.struct [[TS:!.*]]
17// CHECK: [[TS]] = metadata !{i64 0, i64 2, metadata !{{.*}}, i64 4, i64 4, metadata !{{.*}}, i64 8, i64 1, metadata !{{.*}}, i64 12, i64 4, metadata !{{.*}}}
18