[PATCH] D139275: [SimplifyCFG] `FoldBranchToCommonDest()`: deal with mismatched IV's in PHI's in common successor block

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

Thanks



================
Comment at: llvm/lib/Transforms/Utils/SimplifyCFG.cpp:3674
+    if (!SI)
+      SI = cast<SelectInst>(Builder.CreateSelect(PBI->getCondition(), BBIV,
+                                                 PBBIV, PN.getName() + ".sel"));
----------------
How can you be sure this won't constant fold to a ConstantExpr?


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  https://reviews.llvm.org/D139275/new/

https://reviews.llvm.org/D139275