[all-commits] [llvm/llvm-project] d9e875: [X86][MC] Support encoding/decoding for APX varian...

[XinWang10 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d9e875dcc13359f2a399b04e7c54bf70c0306a89
      https://github.com/llvm/llvm-project/commit/d9e875dcc13359f2a399b04e7c54bf70c0306a89
  Author: XinWang10 <108658776+XinWang10 at users.noreply.github.com>
  Date:   2024-01-31 (Wed, 31 Jan 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86InstrMisc.td
    M llvm/lib/Target/X86/X86InstrSSE.td
    A llvm/test/MC/Disassembler/X86/apx/lzcnt.txt
    A llvm/test/MC/Disassembler/X86/apx/popcnt.txt
    A llvm/test/MC/Disassembler/X86/apx/tzcnt.txt
    A llvm/test/MC/X86/apx/lzcnt-att.s
    A llvm/test/MC/X86/apx/lzcnt-intel.s
    A llvm/test/MC/X86/apx/popcnt-att.s
    A llvm/test/MC/X86/apx/popcnt-intel.s
    A llvm/test/MC/X86/apx/tzcnt-att.s
    A llvm/test/MC/X86/apx/tzcnt-intel.s
    M llvm/test/TableGen/x86-fold-tables.inc

  Log Message:
  -----------
  [X86][MC] Support encoding/decoding for APX variant LZCNT/TZCNT/POPCNT instructions (#79954)

Two variants: promoted legacy, NF (no flags update).

The syntax of NF instructions is aligned with GNU binutils.
https://sourceware.org/pipermail/binutils/2023-September/129545.html