From 2b6e66267283215c7c5078d1df997df1380084f7 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic@gmail.com>
Date: Mon, 8 Dec 2014 02:07:22 +0000
Subject: Revert a part of r223583, for now. It seems causing different
 emission between stage2(gcc-clang) and stage3 clang. Investigating.

llvm-svn: 223624
---
 llvm/lib/Analysis/InstructionSimplify.cpp | 5 -----
 1 file changed, 5 deletions(-)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp
index e58998897c2..5c536aa79c4 100644
--- a/llvm/lib/Analysis/InstructionSimplify.cpp
+++ b/llvm/lib/Analysis/InstructionSimplify.cpp
@@ -1476,11 +1476,6 @@ static Value *simplifyUnsignedRangeCheck(ICmpInst *ZeroICmp,
     return UnsignedICmp;
   }
 
-  // X < Y && Y == 0  -->  false
-  if (UnsignedPred == ICmpInst::ICMP_ULT && EqPred == ICmpInst::ICMP_EQ &&
-      IsAnd)
-    return getFalse(UnsignedICmp->getType());
-
   return nullptr;
 }
 
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