[all-commits] [llvm/llvm-project] 1d4673: [X86] Use GFNI for LZCNT vXi8 ops (#141888)

[黃國庭 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1d467339449f75848a3257587df2e1592d0418b3
      https://github.com/llvm/llvm-project/commit/1d467339449f75848a3257587df2e1592d0418b3
  Author: 黃國庭 <we3223 at gmail.com>
  Date:   2025-06-04 (Wed, 04 Jun 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/gfni-lzcnt.ll

  Log Message:
  -----------
  [X86] Use GFNI for LZCNT vXi8 ops (#141888)

This PULL REQUEST implements vXi8 ctlz lowering for X86 using GFNI instructions

Fixes #140729



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