From 961d6d4ac07fedc37b6dadc00e5be54aa720c224 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Mon, 2 Feb 2009 08:19:07 +0000
Subject: [PATCH] Add comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63506 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86ISelLowering.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 7590c2e4da9..846acd02197 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -5366,6 +5366,8 @@ static bool isAndOrOfSetCCs(SDValue Op, unsigned &Opc) {
           Op.getOperand(1).hasOneUse());
 }
 
+// isXor1OfSetCC - Return true if node is an ISD::XOR of a X86ISD::SETCC and
+// 1 and that the SETCC node has a single use.
 static bool isXor1OfSetCC(SDValue Op) {
   if (Op.getOpcode() != ISD::XOR)
     return false;