[PATCH] D55120: [MemCpyOpt] memset->memcpy forwarding with undef tail

[Nikita Popov via Phabricator via llvm-commits]

nikic reopened this revision.
nikic added a comment.
This revision is now accepted and ready to land.

Reopening, as this was reverted by rL349002 <https://reviews.llvm.org/rL349002>, with a reduced test case showing miscompilation at http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20181210/610520.html.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55120/new/

https://reviews.llvm.org/D55120