[llvm] [Attributor] Change allocation size and load/store offsets using AAPointerInfo for Alloca instructions and keep track of instructions causing an Access (PR #72029)

[Shilei Tian via llvm-commits]

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@@ -6194,11 +6317,64 @@ struct AAPointerInfo : public AbstractAttribute {
       }
     }
 
+    // Merge two access paths into one.
+    void mergeAccessPaths(const AccessPathSetTy *AccessPathsNew) const {
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shiltian wrote:

I still think we should do reference instead of pointer.

https://github.com/llvm/llvm-project/pull/72029