[PATCH] D19151: [SLPVectorizer] Set MinVecRegSize via a target hook

[Jongwon Lee via llvm-commits]

JongwonLee created this revision.
JongwonLee added reviewers: jmolloy, mzolotukhin, mcrosier.
JongwonLee added subscribers: llvm-commits, flyingforyou.
Herald added subscribers: mzolotukhin, aemerson.

MinVecRegSize can be set from command-line option or a target hook.
Currently, the target-specific part is implemented only for AArch64.

http://reviews.llvm.org/D19151

Files:
  include/llvm/Analysis/TargetTransformInfo.h
  include/llvm/Analysis/TargetTransformInfoImpl.h
  include/llvm/CodeGen/BasicTTIImpl.h
  lib/Analysis/TargetTransformInfo.cpp
  lib/Target/AArch64/AArch64TargetTransformInfo.h
  lib/Transforms/Vectorize/SLPVectorizer.cpp
  test/Transforms/SLPVectorizer/AArch64/slp-vectorized-within-64bits.ll

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