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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118412 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/AliasAnalysisCounter.cpp b/lib/Analysis/AliasAnalysisCounter.cpp
index a82d959..23be94f 100644
--- a/lib/Analysis/AliasAnalysisCounter.cpp
+++ b/lib/Analysis/AliasAnalysisCounter.cpp
@@ -95,8 +95,8 @@
     }
     
     // FIXME: We could count these too...
-    bool pointsToConstantMemory(const Location &Loc) {
-      return getAnalysis<AliasAnalysis>().pointsToConstantMemory(Loc);
+    bool pointsToConstantMemory(const Location &Loc, bool OrLocal) {
+      return getAnalysis<AliasAnalysis>().pointsToConstantMemory(Loc, OrLocal);
     }
 
     // Forwarding functions: just delegate to a real AA implementation, counting