[PATCH] D140499: [SLP]Use ShuffleInstructionBuilder for vector shrinking.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev created this revision.
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We can use ShuffleInstructionBuilder now for shrinking shuffle emission.
It allows to remove extra shuffle from the emitted code and reuse
original vector.

Part of D110978 <https://reviews.llvm.org/D110978>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D140499

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/X86/shrink_after_reorder.ll
  llvm/test/Transforms/SLPVectorizer/X86/shrink_after_reorder2.ll

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