[PATCH] D109917: [InstCombine] Improve TryToSink for side-effecting calls that would be trivially dead

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstructionCombining.cpp:3667
+  // Cannot move control-flow-involving instructions.
+  if (isa<PHINode>(I) || I->isEHPad() || I->isTerminator())
     return false;
----------------
What if `I` has implicit control flow, e.g. may call system exit?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D109917/new/

https://reviews.llvm.org/D109917