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| author | Jordan Rupprecht <[email protected]> | 2019-05-14 21:58:59 +0000 |
|---|---|---|
| committer | Jordan Rupprecht <[email protected]> | 2019-05-14 21:58:59 +0000 |
| commit | b35a2aa71f76a334a9c98c0a3c3995b5d902d2b9 (patch) | |
| tree | cdff4a5d1a715d4ad622fd8f190128b54bebe440 /test/CodeGen/sanitize-atomic-int-overflow.c | |
| parent | 3748d41833787fcbf59cc5624e8d2b042a8991bc (diff) | |
| parent | 741e05796da92b46d4f7bcbee00702ff37df6489 (diff) | |
Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103upstream/google/stable
git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/sanitize-atomic-int-overflow.c')
| -rw-r--r-- | test/CodeGen/sanitize-atomic-int-overflow.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/CodeGen/sanitize-atomic-int-overflow.c b/test/CodeGen/sanitize-atomic-int-overflow.c new file mode 100644 index 0000000000..a1064f47c3 --- /dev/null +++ b/test/CodeGen/sanitize-atomic-int-overflow.c @@ -0,0 +1,33 @@ +// RUN: %clang_cc1 -triple x86_64-apple-macosx10.14.0 -fsanitize=unsigned-integer-overflow %s -emit-llvm -o - | FileCheck %s + +_Atomic(unsigned) atomic; + +// CHECK-LABEL: define void @cmpd_assign +void cmpd_assign() { + // CHECK: br label %[[LOOP_START:.*]] + + // CHECK: [[LOOP_START]]: + // CHECK-NEXT: phi i32 {{.*}}, [ {{.*}}, %[[INCOMING_BLOCK:.*]] ] + + // CHECK: [[INCOMING_BLOCK]]: + // CHECK-NEXT: cmpxchg + // CHECK-NEXT: extractvalue + // CHECK-NEXT: extractvalue + // CHECK-NEXT: br i1 %8, label %{{.*}}, label %[[LOOP_START]] + atomic += 1; +} + +// CHECK-LABEL: define void @inc +void inc() { + // CHECK: br label %[[LOOP_START:.*]] + + // CHECK: [[LOOP_START]]: + // CHECK-NEXT: phi i32 {{.*}}, [ {{.*}}, %[[INCOMING_BLOCK:.*]] ] + + // CHECK: [[INCOMING_BLOCK]]: + // CHECK-NEXT: cmpxchg + // CHECK-NEXT: extractvalue + // CHECK-NEXT: extractvalue + // CHECK-NEXT: br i1 %8, label %{{.*}}, label %[[LOOP_START]] + atomic++; +} |