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

diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp
index 0fb419266ce972adaaf3bf8de97a63c7cf704dbe..303d7987b79e3c46e45cb9b72e0bea89fd655317 100644 (file)
--- 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;
     }
   }