[PATCH] D64916: [LV] isScalarEpilogueAllowed. NFC.

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer created this revision.
SjoerdMeijer added reviewers: fhahn, RKSimon, hsaito, samparker, dmgreen, Meinersbur.
Herald added subscribers: rkruppe, hiraditya.
Herald added a project: LLVM.

This refactors boolean 'OptForSize' that was passed around in a lot of places
into isScalarEpilogueAllowed, which was already part of the CostModel.  This
boolean controls folding of the tail loop, the scalar epilogue, into the main
loop but code-size reasons may not be the only reason to do this. Thus, this is
a first step to generalise this, and hence OptForSize has been renamed to
isScalarEpilogueAllowed.


https://reviews.llvm.org/D64916

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

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