[llvm] [polly] [AST] Don't merge memory locations in AliasSetTracker (PR #65731)

[Nikita Popov via llvm-commits]

================
@@ -307,7 +173,7 @@ class AliasSetTracker {
   BatchAAResults &AA;
   ilist<AliasSet> AliasSets;
 
-  using PointerMapType = DenseMap<AssertingVH<Value>, AliasSet::PointerRec *>;
+  using PointerMapType = DenseMap<MemoryLocation, AliasSet *>;
----------------
nikic wrote:

I don't really get why this needs to be indexed by MemoryLocation. I'd still expect all MemoryLocations for the same Value to be in the same AliasSet, so it seems like the existing indexing should work fine...

https://github.com/llvm/llvm-project/pull/65731