[all-commits] [llvm/llvm-project] 7eff1a: [X86] Remove (V)MOVHPDrm patterns that involve bit...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 7eff1a7136049fd38d779f52f905f88181b03679
      https://github.com/llvm/llvm-project/commit/7eff1a7136049fd38d779f52f905f88181b03679
  Author: Craig Topper <craig.topper at gmail.com>
  Date:   2020-06-04 (Thu, 04 Jun 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86InstrAVX512.td
    M llvm/lib/Target/X86/X86InstrSSE.td

  Log Message:
  -----------
  [X86] Remove (V)MOVHPDrm patterns that involve bitcast+scalar_to_vec+loadi64.

I think these are left over from when we used to type legalize
v2f32 loads using bitcast+scalar_to_vec+loadi64 on 64-bit targets.
These days we use loadf64. If this becomes a problem a better
solution would be a DAG combine to turn it into scalar_to_vec+loadf64.