[llvm] [Attributor] New attribute to identify what byte ranges are alive for an allocation (PR #66148)

[Johannes Doerfert via llvm-commits]

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@@ -1109,6 +1112,14 @@ struct AAPointerInfoImpl
     return AAPointerInfo::manifest(A);
   }
 
+  using OffsetBinsTy = DenseMap<AA::RangeTy, SmallSet<unsigned, 4>>;
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jdoerfert wrote:

You already defined this in the header. Why would you define it again here? That is duplication and makes changes in one end silently fail on the other end.

https://github.com/llvm/llvm-project/pull/66148