[all-commits] [llvm/llvm-project] a88909: [X86][AVX] LowerFunnelShift - improve FSHL/FSHR pe...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a8890995ee67e0949b3d67da90a32e712fba1396
      https://github.com/llvm/llvm-project/commit/a8890995ee67e0949b3d67da90a32e712fba1396
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-01-19 (Wed, 19 Jan 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vector-fshl-128.ll
    M llvm/test/CodeGen/X86/vector-fshl-256.ll
    M llvm/test/CodeGen/X86/vector-fshl-512.ll
    M llvm/test/CodeGen/X86/vector-fshr-128.ll
    M llvm/test/CodeGen/X86/vector-fshr-256.ll
    M llvm/test/CodeGen/X86/vector-fshr-512.ll

  Log Message:
  -----------
  [X86][AVX] LowerFunnelShift - improve FSHL/FSHR per-element lowering

Similar to LowerRotate, see if we can either unpack or extend to a wider type and use that type's per-element shift instruction