Make this a bit more aggressive

llvm-svn: 20792
2005-03-23 22:06:41 +00:00 · 2005-03-23 22:06:41 +00:00 · 07eac1e698
parent 9f9da538d6
commit 07eac1e698
1 changed files with 1 additions and 1 deletions
--- a/llvm/lib/Analysis/AliasAnalysis.cpp
+++ b/llvm/lib/Analysis/AliasAnalysis.cpp
@ -125,7 +125,7 @@ AliasAnalysis::getModRefInfo(CallSite CS, Value *P, unsigned Size) {
  // If P points to a constant memory location, the call definitely could not
  // modify the memory location.
  if ((Mask & Mod) && AA->pointsToConstantMemory(P))
-    Mask = Ref;
+    Mask = ModRefResult(Mask & ~Mod);

  return ModRefResult(Mask & AA->getModRefInfo(CS, P, Size));
 }