[all-commits] [llvm/llvm-project] 8b8a36: [AArch64] Use dupq (SVE2.1) for segmented lane spl...

[Graham Hunter via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8b8a3699dbdbb5d7865b0fe330d972c3fa380f1e
      https://github.com/llvm/llvm-project/commit/8b8a3699dbdbb5d7865b0fe330d972c3fa380f1e
  Author: Graham Hunter <graham.hunter at arm.com>
  Date:   2025-06-18 (Wed, 18 Jun 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    A llvm/test/CodeGen/AArch64/sve2p1-vector-shuffles.ll

  Log Message:
  -----------
  [AArch64] Use dupq (SVE2.1) for segmented lane splats (#144482)

Use the dupq instructions (when available) to represent a splat of the
same lane within each 128b segment of a wider fixed vector.



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