[PATCH] D80120: [InstCombine] Sink pure instructions down to return and unreachable blocks

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev marked an inline comment as done.
mkazantsev added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstructionCombining.cpp:3448
+          // with alias analysis.
+          if (!ShouldSink && !I->mayReadOrWriteMemory()) {
+            auto *Term = UserParent->getTerminator();
----------------
This can actually be reduced to `mayReadMemory`, but writes will be rejected in `TryToSinkInstruction` anyways.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80120/new/

https://reviews.llvm.org/D80120