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| author | Dimitry Andric <dim@FreeBSD.org> | 2017-12-18 20:11:37 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-12-18 20:11:37 +0000 |
| commit | 461a67fa15370a9ec88f8f8a240bf7c123bb2029 (patch) | |
| tree | 6942083d7d56bba40ec790a453ca58ad3baf6832 /test/CodeGen/ubsan-builtin-checks.c | |
| parent | 75c3240472ba6ac2669ee72ca67eb72d4e2851fc (diff) | |
Vendor import of clang trunk r321017:vendor/clang/clang-trunk-r321017
Notes
Notes:
svn path=/vendor/clang/dist/; revision=326941
svn path=/vendor/clang/clang-trunk-r321017/; revision=326942; tag=vendor/clang/clang-trunk-r321017
Diffstat (limited to 'test/CodeGen/ubsan-builtin-checks.c')
| -rw-r--r-- | test/CodeGen/ubsan-builtin-checks.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/test/CodeGen/ubsan-builtin-checks.c b/test/CodeGen/ubsan-builtin-checks.c new file mode 100644 index 000000000000..9733b0e04794 --- /dev/null +++ b/test/CodeGen/ubsan-builtin-checks.c @@ -0,0 +1,44 @@ +// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -w -emit-llvm -o - %s -fsanitize=builtin | FileCheck %s +// RUN: %clang_cc1 -triple arm64-none-linux-gnu -w -emit-llvm -o - %s -fsanitize=builtin | FileCheck %s --check-prefix=NOT-UB + +// NOT-UB-NOT: __ubsan_handle_invalid_builtin + +// CHECK: define void @check_ctz +void check_ctz(int n) { + // CHECK: [[NOT_ZERO:%.*]] = icmp ne i32 [[N:%.*]], 0, !nosanitize + // CHECK-NEXT: br i1 [[NOT_ZERO]] + // + // Handler block: + // CHECK: call void @__ubsan_handle_invalid_builtin + // CHECK-NEXT: unreachable + // + // Continuation block: + // CHECK: call i32 @llvm.cttz.i32(i32 [[N]], i1 true) + __builtin_ctz(n); + + // CHECK: call void @__ubsan_handle_invalid_builtin + __builtin_ctzl(n); + + // CHECK: call void @__ubsan_handle_invalid_builtin + __builtin_ctzll(n); +} + +// CHECK: define void @check_clz +void check_clz(int n) { + // CHECK: [[NOT_ZERO:%.*]] = icmp ne i32 [[N:%.*]], 0, !nosanitize + // CHECK-NEXT: br i1 [[NOT_ZERO]] + // + // Handler block: + // CHECK: call void @__ubsan_handle_invalid_builtin + // CHECK-NEXT: unreachable + // + // Continuation block: + // CHECK: call i32 @llvm.ctlz.i32(i32 [[N]], i1 true) + __builtin_clz(n); + + // CHECK: call void @__ubsan_handle_invalid_builtin + __builtin_clzl(n); + + // CHECK: call void @__ubsan_handle_invalid_builtin + __builtin_clzll(n); +} |