Last batch of test conversions to new atomic instructions.

llvm-svn: 140585
diff --git a/llvm/test/CodeGen/X86/membarrier.ll b/llvm/test/CodeGen/X86/membarrier.ll
index 42f8ef5..5e569aa 100644
--- a/llvm/test/CodeGen/X86/membarrier.ll
+++ b/llvm/test/CodeGen/X86/membarrier.ll
@@ -5,11 +5,8 @@
 entry:
   %i = alloca i32, align 4
   store i32 1, i32* %i, align 4
-  call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 true)
-  %0 = call i32 @llvm.atomic.load.sub.i32.p0i32(i32* %i, i32 1)
-  call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 true)
+  fence seq_cst
+  %0 = atomicrmw sub i32* %i, i32 1 monotonic
+  fence seq_cst
   ret i32 0
 }
-
-declare i32 @llvm.atomic.load.sub.i32.p0i32(i32* nocapture, i32) nounwind
-declare void @llvm.memory.barrier(i1, i1, i1, i1, i1) nounwind