[PATCH] D149167: [TTI] Add getPHICost to better cost phi operands. NFCI

[Luke Lau via Phabricator via llvm-commits]

luke created this revision.
luke added reviewers: ABataev, RKSimon, reames.
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luke requested review of this revision.
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In order to better account for the cost of constant materialization in
phis, specifically in the SLP vectorizer, we would like to start
providing targets information about their operands via OperandValueInfo.

This patch separates out phi instructions from getCFInstrCost so we can
pass the type as well as information about the incoming values, i.e. if
they are constant or not.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149167

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h
  llvm/lib/Target/AMDGPU/R600TargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.h
  llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
  llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/lib/Target/X86/X86TargetTransformInfo.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

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