From 0428a61e451c1d7c3b8385c1935955374a928884 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Thu, 29 Jul 2010 18:03:33 +0000
Subject: [PATCH] PR7750: !CExpr->isNullValue() only properly computes whether
 CExpr is nonnull if CExpr is a ConstantInt.

llvm-svn: 109773
---
 llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
index 6c00586412ac..d7e2b72b7fac 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -1374,7 +1374,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
       case Instruction::Or:
         // If bits are being or'd in that are not present in the constant we
         // are comparing against, then the comparison could never succeed!
-        if (Constant *BOC = dyn_cast<Constant>(BO->getOperand(1))) {
+        if (ConstantInt *BOC = dyn_cast<ConstantInt>(BO->getOperand(1))) {
           Constant *NotCI = ConstantExpr::getNot(RHS);
           if (!ConstantExpr::getAnd(BOC, NotCI)->isNullValue())
             return ReplaceInstUsesWith(ICI,