[all-commits] [llvm/llvm-project] ba319a: [X86] Remove a redundant COPY_TO_REGCLASS for VK16...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ba319ac47eeabc44673513ec7ab9e1e8e3b4ec69
      https://github.com/llvm/llvm-project/commit/ba319ac47eeabc44673513ec7ab9e1e8e3b4ec69
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-08-25 (Tue, 25 Aug 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86InstrAVX512.td
    M llvm/test/CodeGen/X86/avx512-ext.ll
    M llvm/test/CodeGen/X86/avx512-insert-extract.ll
    M llvm/test/CodeGen/X86/avx512-mask-op.ll
    M llvm/test/CodeGen/X86/avx512-vec-cmp.ll
    M llvm/test/CodeGen/X86/vec_saddo.ll
    M llvm/test/CodeGen/X86/vec_smulo.ll
    M llvm/test/CodeGen/X86/vec_ssubo.ll
    M llvm/test/CodeGen/X86/vec_uaddo.ll
    M llvm/test/CodeGen/X86/vec_umulo.ll
    M llvm/test/CodeGen/X86/vec_usubo.ll

  Log Message:
  -----------
  [X86] Remove a redundant COPY_TO_REGCLASS for VK16 after a KMOVWkr in an isel output pattern.

KMOVWkr produces VK16, there's no reason to copy it to VK16 again.

Test changes are presumably because we were scheduling based on
the COPY that is no longer there.