[PATCH] D110057: [LoopFlatten] Move it to a LoopPassManager

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer created this revision.
SjoerdMeijer added reviewers: aeubanks, asbirlea, nikic, dmgreen.
Herald added subscribers: ormris, wenlei, steven_wu, hiraditya.
SjoerdMeijer requested review of this revision.
Herald added a project: LLVM.

In D109958 <https://reviews.llvm.org/D109958> it was noticed that we could optimise the pipeline and avoid rerunning LoopSimplify/LCSSA for LoopFlatten by moving it to a LoopPassManager. I think the reason why it currently is added to a FunctionPassManager, is because under the legacy-PM a loop pass manager couldn't handle a loop pass deleting/modifying a loop.


https://reviews.llvm.org/D110057

Files:
  llvm/lib/Passes/PassBuilderPipelines.cpp
  llvm/test/Other/new-pm-defaults.ll
  llvm/test/Other/new-pm-lto-defaults.ll
  llvm/test/Other/new-pm-thinlto-defaults.ll
  llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll
  llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll
  llvm/test/Other/new-pm-thinlto-prelink-pgo-defaults.ll
  llvm/test/Other/new-pm-thinlto-prelink-samplepgo-defaults.ll

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