From 9b9918246caedae5b236cc1eabfb0634bc540437 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 22 Oct 2004 04:53:16 +0000
Subject: [PATCH] Fix a bug Nate noticed, where we miscompiled a simple
 testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17157 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/InstructionCombining.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 3119e570440..61acad04f32 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -1285,7 +1285,7 @@ Instruction *InstCombiner::OptAndOp(Instruction *Op,
         Constant *AllOne = ConstantIntegral::getAllOnesValue(AndRHS->getType());
         Constant *ShrMask = ConstantExpr::getUShr(AllOne, OpRHS);
         Constant *CI = ConstantExpr::getAnd(AndRHS, ShrMask);
-        if (CI == ShrMask) {          // Masking out bits shifted in.
+        if (CI == AndRHS) {          // Masking out bits shifted in.
           // Make the argument unsigned.
           Value *ShVal = Op->getOperand(0);
           ShVal = InsertCastBefore(ShVal,