1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fast-isel-atomic.ll b/test/CodeGen/X86/fast-isel-atomic.ll
new file mode 100644
index 0000000..74c5868
--- /dev/null
+++ b/test/CodeGen/X86/fast-isel-atomic.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s -O0 -march=x86-64
+; rdar://8204072
+; PR7652
+
+@sc = external global i8
+@uc = external global i8
+
+declare i8 @llvm.atomic.load.and.i8.p0i8(i8* nocapture, i8) nounwind
+
+define void @test_fetch_and_op() nounwind {
+entry:
+  %tmp40 = call i8 @llvm.atomic.load.and.i8.p0i8(i8* @sc, i8 11) ; <i8> [#uses=1]
+  store i8 %tmp40, i8* @sc
+  %tmp41 = call i8 @llvm.atomic.load.and.i8.p0i8(i8* @uc, i8 11) ; <i8> [#uses=1]
+  store i8 %tmp41, i8* @uc
+  ret void
+}