[all-commits] [llvm/llvm-project] 00a2d6: [llvm-exegesis][X86] Add memory pipe counters to S...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 00a2d6e23d311b1459e326caa497834a6ccbda33
      https://github.com/llvm/llvm-project/commit/00a2d6e23d311b1459e326caa497834a6ccbda33
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-12-12 (Mon, 12 Dec 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86PfmCounters.td

  Log Message:
  -----------
  [llvm-exegesis][X86] Add memory pipe counters to SLM model

There might not be any exposed alu pipe counters for us to measure - but the sum of load/store uop counters seems to give a really good approximation to memory controller usage - even for more complex instructions like cmpxchg