From 4781bc7142b3e5f534956f4c3101de1bd10959b4 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 17 Mar 2004 23:22:04 +0000
Subject: [PATCH] Fix a HORRIBLY NASTY bug that caused siod to stop working
 last night.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12479 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/AliasSetTracker.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp
index 0fb419266ce..303d7987b79 100644
--- a/lib/Analysis/AliasSetTracker.cpp
+++ b/lib/Analysis/AliasSetTracker.cpp
@@ -101,7 +101,7 @@ void AliasSet::addCallSite(CallSite CS, AliasAnalysis &AA) {
       return;
     else if (AA.onlyReadsMemory(F)) {
       AliasTy = MayAlias;
-      AccessTy = Refs;
+      AccessTy |= Refs;
       return;
     }
   }