[PATCH] D109958: [LoopFlatten] Enable it by default

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

New compile-time: https://llvm-compile-time-tracker.com/compare.php?from=6f45fe9851c673883b3a258351ee4997aa2c028c&to=439d1c9613828db24ad03eb415baad2e76b8913c&stat=instructions Looks ok to me.

We may want to drop the LoopSimplifyCFG run from the LegacyPM pipeline, as that doesn't match NewPM and seems to account for the actual codegen impact of this change (LoopFlatten itself doesn't seem to be doing much in practice).


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D109958/new/

https://reviews.llvm.org/D109958