[llvm] [LLVM][SCEV] Look through common vscale multiplicand when simplifying compares. (PR #141798)

[Paul Walker via llvm-commits]

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@@ -10959,7 +10978,7 @@ bool ScalarEvolution::SimplifyICmpOperands(CmpPredicate &Pred, const SCEV *&LHS,
   // Recursively simplify until we either hit a recursion limit or nothing
   // changes.
   if (Changed)
-    return SimplifyICmpOperands(Pred, LHS, RHS, Depth + 1);
+    return SimplifyICmpOperands(Pred, LHS, RHS, Depth + 1), true;
 
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paulwalker-arm wrote:

Hopefully you don't mind but the extra return looked a little weird so I dropped the return instead?

https://github.com/llvm/llvm-project/pull/141798