diff options
Diffstat (limited to 'test/Transforms/Util/MemorySSA/atomic-clobber.ll')
| -rw-r--r-- | test/Transforms/Util/MemorySSA/atomic-clobber.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Transforms/Util/MemorySSA/atomic-clobber.ll b/test/Transforms/Util/MemorySSA/atomic-clobber.ll new file mode 100644 index 0000000000000..217d5f65d787c --- /dev/null +++ b/test/Transforms/Util/MemorySSA/atomic-clobber.ll @@ -0,0 +1,18 @@ +; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s +; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s +; +; Ensures that atomic loads count as MemoryDefs + +define i32 @foo(i32* %a, i32* %b) { +; CHECK: 1 = MemoryDef(liveOnEntry) +; CHECK-NEXT: store i32 4 + store i32 4, i32* %a, align 4 +; CHECK: 2 = MemoryDef(1) +; CHECK-NEXT: %1 = load atomic i32 + %1 = load atomic i32, i32* %b acquire, align 4 +; CHECK: MemoryUse(2) +; CHECK-NEXT: %2 = load i32 + %2 = load i32, i32* %a, align 4 + %3 = add i32 %1, %2 + ret i32 %3 +} |