From 7178010a168a378df5d9be95956093a3e5f963fd Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 21 Aug 2009 18:27:26 +0000
Subject: [PATCH] Don't assume that the operand of an inttoptr is an
 pointer-sized integer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79651 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/ConstantFolding.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index 19ea6033752..5dcb021acf6 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -138,8 +138,10 @@ static Constant *SymbolicallyEvaluateGEP(Constant* const* Ops, unsigned NumOps,
     // otherwise we can't.
     if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Ptr))
       if (CE->getOpcode() == Instruction::IntToPtr)
-        if (ConstantInt *Base = dyn_cast<ConstantInt>(CE->getOperand(0)))
+        if (ConstantInt *Base = dyn_cast<ConstantInt>(CE->getOperand(0))) {
           BasePtr = Base->getValue();
+          BasePtr.zextOrTrunc(BitWidth);
+        }
     
     if (BasePtr == 0)
       BaseIsInt = false;