[all-commits] [llvm/llvm-project] e16b4f: [X86] Fix SLM uops/resources counts for CMPXCHG in...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e16b4f5b16a3d6b3753ce1a45d40113c8cb6bc23
      https://github.com/llvm/llvm-project/commit/e16b4f5b16a3d6b3753ce1a45d40113c8cb6bc23
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-12-20 (Tue, 20 Dec 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleSLM.td
    M llvm/test/tools/llvm-mca/X86/SLM/resources-cmpxchg.s
    M llvm/test/tools/llvm-mca/X86/SLM/resources-x86_64.s

  Log Message:
  -----------
  [X86] Fix SLM uops/resources counts for CMPXCHG instructions

LOCK + CMPXCHG8/CMPXCHG16 variants still need overriding as they are not completely correct - already much better though

Based off llvm-exegesis captures, confirmed with Agner + uops.info