[all-commits] [llvm/llvm-project] 555d8a: [AArch64] Reorganise perfect shuffle generation. N...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 555d8a58b85f0cfcbad0fc7cf7b13bbef4d4ca30
      https://github.com/llvm/llvm-project/commit/555d8a58b85f0cfcbad0fc7cf7b13bbef4d4ca30
  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/lib/Target/AArch64/AArch64PerfectShuffle.h

  Log Message:
  -----------
  [AArch64] Reorganise perfect shuffle generation. NFC (#224526)

This adds a generatePerfectShuffle implementation for parsing through
the perfect shuffle tables, generating a list of ShuffleEntry's that
represent the sequence of shuffles that need to be performed. This is
intended to be a NFC as-is, allowing it to be reused in global isel and
extended in the future to handle shuffles that are not part of the
shuffle table. The number of instructions generated can also be used for
costing shuffles, as we do for immediate generation.



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