[all-commits] [llvm/llvm-project] 0aad82: [X86] Enable multibyte NOPs in 64-bit mode for pad...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0aad82943af946d1a1821998c0804ae40227051d
      https://github.com/llvm/llvm-project/commit/0aad82943af946d1a1821998c0804ae40227051d
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-07-01 (Wed, 01 Jul 2020)

  Changed paths:
    M lld/test/COFF/lto.ll
    M llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
    M llvm/test/MC/X86/align-branch-bundle.s
    M llvm/test/MC/X86/align-branch-pad-max-prefix.s

  Log Message:
  -----------
  [X86] Enable multibyte NOPs in 64-bit mode for padding/alignment.

The default CPU used by llvm-mc doesn't have the NOPL feature, but
if we know we're compiling in 64-bit mode we should be able to
use nopl.