[PATCH] D69977: [InstCombine] avoid crash from deleting an instruction that still has uses (PR43723)

Sanjay Patel via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Nov 8 13:38:50 PST 2019


spatel updated this revision to Diff 228515.
spatel added a comment.

Patch updated:
Try harder to verify that a llvm.invariant.start is used as expected by llvm.invariant.end. If so, delete both at the same time. If not, don't try to delete the 'start'.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69977/new/

https://reviews.llvm.org/D69977

Files:
  llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
  llvm/test/Transforms/InstCombine/builtin-object-size-ptr.ll

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