[PATCH] D73501: [SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)

Mon Mar 16 05:52:26 PDT 2020

danilaml added a comment.

@lebedev.ri I've been successfully using a pass based on https://reviews.llvm.org/D12494 in a downstream port (although I'm not sure if it's enough to fix all ARM's regressions). I was planning to submit it for the review after some touch ups (i.e. it only uses legacy pm) but haven't found the time for that yet. I also need to evaluate whether it is still needed after D75908 <https://reviews.llvm.org/D75908> (that might take some time).

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https://reviews.llvm.org/D73501