[PATCH] D109959: [SCEV] Generalize implication when signedness of FoundPred doesn't matter
Max Kazantsev via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 20 21:06:09 PDT 2021
mkazantsev added inline comments.
================
Comment at: llvm/lib/Analysis/ScalarEvolution.cpp:10711
+ return (CmpInst::isUnsigned(P2) && P1 == CmpInst::getSignedPredicate(P2)) ||
+ (CmpInst::isSigned(P2) && P1 == CmpInst::getUnsignedPredicate(P2));
+ };
----------------
nikic wrote:
> You should be able to simply this to `CmpInst::isRelational(P2) && P1 == CmpInst::getFlippedSignednessPredicate(P2)`.
That's a good point, thanks!
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https://reviews.llvm.org/D109959/new/
https://reviews.llvm.org/D109959
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