[PATCH] D30910: [SimplifyCFG] allow speculation of div/rem when sibling op exists (PR31028)

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

TTI::getUserCost, maybe?  Not sure our costs are accurate for illegal types.

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I wonder if it would make sense to perform this transform in EarlyCSE or something like that instead; it might be worthwhile even if we can't speculate the whole basic block.


https://reviews.llvm.org/D30910