[PATCH] D99440: [X86][AVX] combineHorizOpWithShuffle - improve SHUFFLE(HOP(LOSUBVECTOR(X),HISUBVECTOR(X))) folding

[Mats Larsen via Phabricator via llvm-commits]

supergrecko created this revision.
Herald added subscribers: pengfei, hiraditya.
supergrecko requested review of this revision.
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Peek through bitcasts to find subvector splits and use getTargetShuffleInputs to decode target shuffles as well as ShuffleVectorSDNode


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D99440

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/masked_store_trunc.ll
  llvm/test/CodeGen/X86/masked_store_trunc_ssat.ll
  llvm/test/CodeGen/X86/masked_store_trunc_usat.ll
  llvm/test/CodeGen/X86/vector-trunc-packus.ll
  llvm/test/CodeGen/X86/vector-trunc-ssat.ll
  llvm/test/CodeGen/X86/vector-trunc-usat.ll
  llvm/test/CodeGen/X86/vector-trunc.ll

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