[PATCH] D148174: [SLP]Introduce gather cost estimation function.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev created this revision.
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Introduced BoUpSLP::ShuffleCostEstimator::gather function as an initial
implementation of the gather/buildvector cost estimation for buildvector
nodes. It will allow to use general codegen infrastructure for better
cost estimation + it improves the cost estimation for the
gathers/buildvectors.

Improved part of D110978 <https://reviews.llvm.org/D110978>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D148174

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/AArch64/extractelements-to-shuffle.ll
  llvm/test/Transforms/SLPVectorizer/X86/lookahead.ll
  llvm/test/Transforms/SLPVectorizer/X86/reduced-gathered-vectorized.ll
  llvm/test/Transforms/SLPVectorizer/X86/reduction-logical.ll

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