From 8ee9204309edafc981db6cf71f282e071034b1a4 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 3 Nov 2003 01:29:41 +0000
Subject: [PATCH] Fix bug with zero sized casts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9667 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 bbdfda3f76b..534ba5946e2 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -1552,7 +1552,7 @@ Instruction *InstCombiner::visitCastInst(CastInst &CI) {
         unsigned CastElTySize = TD->getTypeSize(CastElTy);
         
         // If the allocation is for an even multiple of the cast type size
-        if (AllocElTySize % CastElTySize == 0) {
+        if (CastElTySize && (AllocElTySize % CastElTySize == 0)) {
           Value *Amt = ConstantUInt::get(Type::UIntTy, 
                                          AllocElTySize/CastElTySize);
           std::string Name = AI->getName(); AI->setName("");