diff options
Diffstat (limited to 'clang/test/CodeGen/errno-tbaa.c')
| -rw-r--r-- | clang/test/CodeGen/errno-tbaa.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/clang/test/CodeGen/errno-tbaa.c b/clang/test/CodeGen/errno-tbaa.c new file mode 100644 index 0000000..4ca62a3 --- /dev/null +++ b/clang/test/CodeGen/errno-tbaa.c @@ -0,0 +1,12 @@ +// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -O0 -o - %s | FileCheck %s --check-prefix=NOTBAA +// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -O1 -o - %s | FileCheck %s --check-prefix=ERRNO-TBAA +// RUN: %clang_cc1 -triple x86_64-unknown-unknown -x c++ -emit-llvm -O1 -o - %s | FileCheck %s --check-prefix=ERRNO-TBAA +// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -O1 -relaxed-aliasing -o - %s | FileCheck %s --check-prefix=NOSTRICT + +// Ensure !llvm.errno.tbaa metadata is emitted upon integer accesses, if TBAA is available. + +int int_access(int *ptr) { return ptr ? *ptr : 0; } + +// NOTBAA-NOT: !llvm.errno.tbaa +// ERRNO-TBAA: !llvm.errno.tbaa +// NOSTRICT-NOT: !llvm.errno.tbaa |