[llvm] [SCEVAA] Enhance SCEVAAResult::alias() to handle two pointers with different pointer bases (PR #91453)

[via llvm-commits]

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@@ -61,6 +61,20 @@ AliasResult SCEVAAResult::alias(const MemoryLocation &LocA,
                                  ? static_cast<uint64_t>(LocB.Size.getValue())
                                  : MemoryLocation::UnknownSize);
 
+    // Firstly, try to convert the two pointers into ptrtoint expressions to
+    // handle two pointers with different pointer bases.
+    // Either both pointers are used with ptrtoint or neither, so we can't end
+    // up with a ptr + int mix (not entirely sure whether it's possible for just
+    // one of the conversions to fail).
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csstormq wrote:

It has been fixed. Thanks a lot for your suggestion.

https://github.com/llvm/llvm-project/pull/91453