[all-commits] [llvm/llvm-project] 0d0f39: [X86][Atom] Add missing UOps override to AtomWrite...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0d0f39b0f3ee3b7d41a6caca6896a90d1a316437
      https://github.com/llvm/llvm-project/commit/0d0f39b0f3ee3b7d41a6caca6896a90d1a316437
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-09-04 (Sat, 04 Sep 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleAtom.td

  Log Message:
  -----------
  [X86][Atom] Add missing UOps override to AtomWriteResPair multiclass

Make it easier to describe microcoded instructions.


  Commit: 7d062d2c478b713ba7ac31729259d747fdd7d0b3
      https://github.com/llvm/llvm-project/commit/7d062d2c478b713ba7ac31729259d747fdd7d0b3
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-09-04 (Sat, 04 Sep 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleAtom.td
    M llvm/test/tools/llvm-mca/X86/Atom/resources-x86_64.s

  Log Message:
  -----------
  [X86][Atom] MUL/DIV instructions require both ports, not either.

Noticed while trying to improve multiplication costs for vectorization via the D103695 helper script. Confirmed with Intel AoM.


Compare: https://github.com/llvm/llvm-project/compare/08c3cdb8b842...7d062d2c478b