[all-commits] [llvm/llvm-project] afa8ae: [RISCV][llvm-exegesis] Add default Pfm cycle count...

Craig Topper via All-commits all-commits at lists.llvm.org
Tue Jan 7 09:51:56 PST 2025


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: afa8aeeeec9a897a35ba5c8afc024d9b10504db1
      https://github.com/llvm/llvm-project/commit/afa8aeeeec9a897a35ba5c8afc024d9b10504db1
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2025-01-07 (Tue, 07 Jan 2025)

  Changed paths:
    M llvm/lib/Target/RISCV/CMakeLists.txt
    M llvm/lib/Target/RISCV/RISCV.td
    A llvm/lib/Target/RISCV/RISCVPfmCounters.td
    M llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp
    M llvm/unittests/tools/llvm-exegesis/RISCV/TargetTest.cpp

  Log Message:
  -----------
  [RISCV][llvm-exegesis] Add default Pfm cycle counter. (#121866)

Also tested with Ubuntu on SiFive's HiFive Premier P550 board. Curiously
latency is reporting ~1.5 on basic scalar arithmetic, scalar mul is
~3.5, and div is ~36.5. This 0.5 cycles higher than I expect.



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