[PATCH] D69977: [InstCombine] avoid crash from deleting an instruction that still has uses (PR43723)
Eli Friedman via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Nov 8 13:57:20 PST 2019
efriedma added inline comments.
================
Comment at: llvm/lib/Transforms/InstCombine/InstructionCombining.cpp:2397
+ // the list element to avoid examining in the next loop.
+ if (II->getIntrinsicID() == Intrinsic::invariant_start) {
+ if (II->hasNUsesOrMore(2))
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Is it not too late here? I would have thought we need to check in isAllocSiteRemovable.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D69977/new/
https://reviews.llvm.org/D69977
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