From 74186ab391c8e82b58efd015ae7fd91c322355ed Mon Sep 17 00:00:00 2001
From: John McCall <rjmccall@apple.com>
Date: Fri, 4 Mar 2011 08:25:59 +0000
Subject: [PATCH] Access ivars with inbounds GEPs, even in -fwrapv.  It's
 unlikely that this can have any optimization effect, given the opacity of
 objects pointers, but you never know.

llvm-svn: 126990
---
 clang/lib/CodeGen/CGObjCMac.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/CodeGen/CGObjCMac.cpp b/clang/lib/CodeGen/CGObjCMac.cpp
index d2af104e4836..bc02ed5b436e 100644
--- a/clang/lib/CodeGen/CGObjCMac.cpp
+++ b/clang/lib/CodeGen/CGObjCMac.cpp
@@ -115,7 +115,7 @@ LValue CGObjCRuntime::EmitValueForIvarAtOffset(CodeGen::CodeGenFunction &CGF,
   QualType IvarTy = Ivar->getType();
   const llvm::Type *LTy = CGF.CGM.getTypes().ConvertTypeForMem(IvarTy);
   llvm::Value *V = CGF.Builder.CreateBitCast(BaseValue, I8Ptr);
-  V = CGF.Builder.CreateGEP(V, Offset, "add.ptr");
+  V = CGF.Builder.CreateInBoundsGEP(V, Offset, "add.ptr");
   V = CGF.Builder.CreateBitCast(V, llvm::PointerType::getUnqual(LTy));
 
   if (!Ivar->isBitField()) {