[all-commits] [llvm/llvm-project] 7470d7: [AArch64] Add isAppleMLike helper to check for M c...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7470d721c65d7924c5e1743ec73aa44fa858717c
      https://github.com/llvm/llvm-project/commit/7470d721c65d7924c5e1743ec73aa44fa858717c
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-12-05 (Fri, 05 Dec 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64Subtarget.cpp
    M llvm/lib/Target/AArch64/AArch64Subtarget.h
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    M llvm/test/Transforms/LoopUnroll/AArch64/apple-unrolling.ll

  Log Message:
  -----------
  [AArch64] Add isAppleMLike helper to check for M cores and aligned CPUs. (#170553)

Add a new isAppleMLike helper, that returns true if the core is part of
the Apple M core family or Apple A14 or later. Used to apply cost
decisions consistently to those groups of cores.

The function is now a single place to update when new cores are added.
It also makes sure we apply unrolling decisions for newer Apple cores to
Apple A17.

PR: https://github.com/llvm/llvm-project/pull/170553



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