[all-commits] [llvm/llvm-project] 768182: [X86] Declare 128/256-bit funnel shifts legal on V...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 768182dff6ec12a91beae27fb2f5c2f20f6d4993
      https://github.com/llvm/llvm-project/commit/768182dff6ec12a91beae27fb2f5c2f20f6d4993
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2026-03-05 (Thu, 05 Mar 2026)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86InstrAVX512.td

  Log Message:
  -----------
  [X86] Declare 128/256-bit funnel shifts legal on VBMI2 + NOVLX targets (#184634)

Add tablegen patterns to widen 128/256-bit funnel shift to 512-bit

Similar to what we do for 128/256-bit AVX512F rotates (and a lot of
other instructions) already - and I've take the opportunity to create
similar macros to reduce duplication in the rotate patterns

Another step towards #184002



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