Add an atomic lowering pass
llvm-svn: 110113
diff --git a/llvm/test/Transforms/LowerAtomic/barrier.ll b/llvm/test/Transforms/LowerAtomic/barrier.ll
new file mode 100644
index 0000000..218c5ba
--- /dev/null
+++ b/llvm/test/Transforms/LowerAtomic/barrier.ll
@@ -0,0 +1,10 @@
+; RUN: opt < %s -loweratomic -S | FileCheck %s
+
+declare void @llvm.memory.barrier(i1 %ll, i1 %ls, i1 %sl, i1 %ss, i1 %device)
+
+define void @barrier() {
+; CHECK: @barrier
+ call void @llvm.memory.barrier(i1 0, i1 0, i1 0, i1 0, i1 0)
+; CHECK-NEXT: ret
+ ret void
+}