[all-commits] [llvm/llvm-project] d486b7: [AArch64] Unroll some loops with early-continues o...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d486b768238c84b3fea8cb35aaceab1ae5204f92
      https://github.com/llvm/llvm-project/commit/d486b768238c84b3fea8cb35aaceab1ae5204f92
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2024-12-22 (Sun, 22 Dec 2024)

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

  Log Message:
  -----------
  [AArch64] Unroll some loops with early-continues on Apple Silicon. (#118499)

Try to runtime-unroll loops with early-continues depending on
loop-varying loads; this helps with branch-prediction for the
early-continues and can significantly improve performance
for such loops

Builds on top of https://github.com/llvm/llvm-project/pull/118317.

PR: https://github.com/llvm/llvm-project/pull/118499.



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