From: Jim Grosbach <grosbach@apple.com>
Date: Fri, 15 Oct 2010 18:34:47 +0000 (+0000)
Subject: Don't mark argument value stores as immutable, as otherwise the post-RA
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fd52906478a17c1459607a9e458578d4289cdfa6;p=oota-llvm.git

Don't mark argument value stores as immutable, as otherwise the post-RA
scheduler may reorder loads from them before the stores and other such
badness. PR8347. Patch by David Meyer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116602 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 6f292dd1556..d9a7ec32451 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -2217,7 +2217,7 @@ ARMTargetLowering::LowerFormalArguments(SDValue Chain,
       AFI->setVarArgsFrameIndex(
         MFI->CreateFixedObject(VARegSaveSize,
                                ArgOffset + VARegSaveSize - VARegSize,
-                               true));
+                               false));
       SDValue FIN = DAG.getFrameIndex(AFI->getVarArgsFrameIndex(),
                                       getPointerTy());