[all-commits] [llvm/llvm-project] 77b1b9: [LV] Also clamp MaxVF by trip count when maximizin...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 77b1b956da234d3b3be31c4f04e6af3173b306a1
      https://github.com/llvm/llvm-project/commit/77b1b956da234d3b3be31c4f04e6af3173b306a1
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-07-23 (Wed, 23 Jul 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/interleave-with-gaps.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll

  Log Message:
  -----------
  [LV] Also clamp MaxVF by trip count when maximizing vector bandwidth. (#149794)

Also clamp the max VF when maximizing vector bandwidth by the maximum
trip count. Otherwise we may end up choosing a VF for which the vector
loop never executes.

PR: https://github.com/llvm/llvm-project/pull/149794



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications