[PATCH] D147927: [X86] combineConcatVectorOps - remove FADD/FSUB/FMUL handling

[LuoYuanke via Phabricator via llvm-commits]

LuoYuanke created this revision.
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It is not profitable to convert FADD/FSUB/FMUL to concat, because
FADD/FSUB/FMUL have better throughput than concat.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D147927

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/matrix-multiply.ll
  llvm/test/CodeGen/X86/widen_fadd.ll
  llvm/test/CodeGen/X86/widen_fmul.ll
  llvm/test/CodeGen/X86/widen_fsub.ll

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