[all-commits] [llvm/llvm-project] e8e4a5: [AArch64] Use SVE rev for full reverse shuffles wi...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e8e4a54cfbbc054ec9801dea03e6c6868bf0708a
      https://github.com/llvm/llvm-project/commit/e8e4a54cfbbc054ec9801dea03e6c6868bf0708a
  Author: David Green <david.green at arm.com>
  Date:   2026-09-26 (Sat, 26 Sep 2026)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/sve-fixed-length-shuffle-reverse.ll

  Log Message:
  -----------
  [AArch64] Use SVE rev for full reverse shuffles with SVE128 (#224589)

When the vscale_range is always 1, we can make use of the SVE rev
instruction to perform a full 128bit vector reverse.

Sidesteps #223597 for SVE128



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