basic-aa can actually provide simple mod/ref info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15251 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index 8aa4aa0..19397f6 100644
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -83,9 +83,9 @@
ModRefResult getModRefInfo(CallSite CS, Value *P, unsigned Size);
- /// hasNoModRefInfoForCalls - We have no way to test one call against
- /// another, unless they are pure or const.
- virtual bool hasNoModRefInfoForCalls() const { return true; }
+ /// hasNoModRefInfoForCalls - We can provide mod/ref information against
+ /// non-escaping allocations.
+ virtual bool hasNoModRefInfoForCalls() const { return false; }
/// pointsToConstantMemory - Chase pointers until we find a (constant
/// global) or not.