Extend the AliasAnalysis::pointsToConstantMemory interface to allow it

to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.

llvm-svn: 118412

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Analysis/AliasAnalysis.cpp b/llvm/lib/Analysis/AliasAnalysis.cpp
index 472d57ab402..d513ebbc2a9 100644
--- a/llvm/lib/Analysis/AliasAnalysis.cpp
+++ b/llvm/lib/Analysis/AliasAnalysis.cpp
@@ -49,9 +49,10 @@ AliasAnalysis::alias(const Location &LocA, const Location &LocB) {
   return AA->alias(LocA, LocB);
 }
 
-bool AliasAnalysis::pointsToConstantMemory(const Location &Loc) {
+bool AliasAnalysis::pointsToConstantMemory(const Location &Loc,
+                                           bool OrLocal) {
   assert(AA && "AA didn't call InitializeAliasAnalysis in its run method!");
-  return AA->pointsToConstantMemory(Loc);
+  return AA->pointsToConstantMemory(Loc, OrLocal);
 }
 
 void AliasAnalysis::deleteValue(Value *V) {