[all-commits] [llvm/llvm-project] 7ea371: [AArch64] Extend performActiveLaneMaskCombine for ...

[Kerry McLaughlin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7ea371443b83f20edadb538c4b6ea19ee4de1094
      https://github.com/llvm/llvm-project/commit/7ea371443b83f20edadb538c4b6ea19ee4de1094
  Author: Kerry McLaughlin <kerry.mclaughlin at arm.com>
  Date:   2025-07-09 (Wed, 09 Jul 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/get-active-lane-mask-extract.ll

  Log Message:
  -----------
  [AArch64] Extend performActiveLaneMaskCombine for more than two extracts (#146725)

The combine was added to find a get.active.lane.mask used by two
extract subvectors and try to replace it with the paired whilelo
instruction. This extends the combine to cover cases where there
are more than two extracts.



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