[all-commits] [llvm/llvm-project] 4cb41d: [AArch64] Prefer zip over ushll for anyext. (#133433)

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4cb41d136cd4e2caef724e35b337f888036f8645
      https://github.com/llvm/llvm-project/commit/4cb41d136cd4e2caef724e35b337f888036f8645
  Author: David Green <david.green at arm.com>
  Date:   2025-04-01 (Tue, 01 Apr 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/test/CodeGen/AArch64/andorxor.ll
    M llvm/test/CodeGen/AArch64/bitcast-promote-widen.ll
    M llvm/test/CodeGen/AArch64/bitcast.ll
    M llvm/test/CodeGen/AArch64/extbinopload.ll
    M llvm/test/CodeGen/AArch64/extract-subvec-combine.ll
    M llvm/test/CodeGen/AArch64/neon-bitcast.ll
    M llvm/test/CodeGen/AArch64/sve-fixed-length-extract-subvector.ll
    M llvm/test/CodeGen/AArch64/vec3-loads-ext-trunc-stores.ll
    M llvm/test/CodeGen/AArch64/zext.ll

  Log Message:
  -----------
  [AArch64] Prefer zip over ushll for anyext. (#133433)

Many CPUs have a higher throughput of ZIP instructions vs USHLL. This
adds some tablegen patterns for preferring zip in anyext patterns.



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