Basic tests for atomic load and store on x86.
llvm-svn: 138486
diff --git a/llvm/test/CodeGen/X86/atomic-load-store.ll b/llvm/test/CodeGen/X86/atomic-load-store.ll
new file mode 100644
index 0000000..7738ace
--- /dev/null
+++ b/llvm/test/CodeGen/X86/atomic-load-store.ll
@@ -0,0 +1,22 @@
+; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7.0 | FileCheck %s
+
+define void @test1(i32* %ptr, i32 %val1) {
+; CHECK: test1
+; CHECK: xchgl %esi, (%rdi)
+ store atomic i32 %val1, i32* %ptr seq_cst, align 4
+ ret void
+}
+
+define void @test2(i32* %ptr, i32 %val1) {
+; CHECK: test2
+; CHECK: movl %esi, (%rdi)
+ store atomic i32 %val1, i32* %ptr release, align 4
+ ret void
+}
+
+define i32 @test3(i32* %ptr) {
+; CHECK: test3
+; CHECK: movl (%rdi), %eax
+ %val = load atomic i32* %ptr seq_cst, align 4
+ ret i32 %val
+}