[all-commits] [llvm/llvm-project] 21f7c6: [LLVM][ARM] Latency mutations for cortex m55, m7 an...

[Nashe Mncube via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 21f7c626270d5b39c40f7d8f978ee91937d11dbb
      https://github.com/llvm/llvm-project/commit/21f7c626270d5b39c40f7d8f978ee91937d11dbb
  Author: Nashe Mncube <nashe.mncube at arm.com>
  Date:   2024-11-13 (Wed, 13 Nov 2024)

  Changed paths:
    M llvm/lib/Target/ARM/ARMBaseInstrInfo.h
    A llvm/lib/Target/ARM/ARMLatencyMutations.cpp
    A llvm/lib/Target/ARM/ARMLatencyMutations.h
    M llvm/lib/Target/ARM/ARMProcessors.td
    M llvm/lib/Target/ARM/ARMSubtarget.h
    M llvm/lib/Target/ARM/ARMTargetMachine.cpp
    M llvm/lib/Target/ARM/CMakeLists.txt

  Log Message:
  -----------
  [LLVM][ARM] Latency mutations for cortex m55,m7 and m85 (#115153)

This patch adds latency mutations as a scheduling related speedup for
the above mentioned cores. When benchmarking this pass on selected
benchmarks we see a performance improvement of 1% on most benchmarks
with some improving by up to 6%.

Author: David Penry <david.penry at arm.com>
Co-authored-by: Nashe Mncube <nashe.mncube at arm.com



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