[all-commits] [llvm/llvm-project] 2463b8: [X86] combineConcatVectorOps - combine VSHLI/VSRAI...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 2463b8c97dc7dad3a9b479ae44e8845bff14717f
      https://github.com/llvm/llvm-project/commit/2463b8c97dc7dad3a9b479ae44e8845bff14717f
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-02-10 (Mon, 10 Feb 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vector-shuffle-512-v32.ll

  Log Message:
  -----------
  [X86] combineConcatVectorOps - combine VSHLI/VSRAI/VSRLI ops

Non-AVX512BW targets failed to concatenate 256-bit shifts back to 512-bits (split during 512-bit shuffle lowering as they don't have v32i16/v64i8 types).