[llvm] [Attributor] Change allocation size and load/store offsets using AAPointerInfo for Alloca instructions (PR #72029)

[Shilei Tian via llvm-commits]

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@@ -6285,12 +6341,38 @@ struct AAAllocationInfo : public StateWrapper<BooleanState, AbstractAttribute> {
     return AbstractAttribute::isValidIRPositionForInit(A, IRP);
   }
 
+  // A helper function to check is simplified values exists for the current
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shiltian wrote:

```suggestion
  // A helper function to check if simplified values exists for the current
```

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