Comment out code that isn't entirely correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60156 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 13bbf53..eae1b11 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -6150,6 +6150,8 @@
 
 SDValue X86TargetLowering::LowerXADDO(SDValue Op, SelectionDAG &DAG,
                                       ISD::NodeType NTy) {
+#if 0
+  // FIXME: Lowering XADDO should use BRCOND as well.
   SDNode *N = Op.getNode();
 
   for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I) {
@@ -6169,7 +6171,7 @@
       return Sum;
     }
   }
-
+#endif
   return SDValue();
 }