[all-commits] [llvm/llvm-project] 2fe30b: [AArch64] Add cost model for @experimental.vector....

[Ricardo Jesus via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2fe30bc6693c60d76c7e44d9fd6323c39125c19e
      https://github.com/llvm/llvm-project/commit/2fe30bc6693c60d76c7e44d9fd6323c39125c19e
  Author: Ricardo Jesus <rjj at nvidia.com>
  Date:   2024-12-11 (Wed, 11 Dec 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/BasicTTIImpl.h
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/AArch64/sve-intrinsics.ll

  Log Message:
  -----------
  [AArch64] Add cost model for @experimental.vector.match (#118512)

The base cost approximates the expansion code in SelectionDAGBuilder.

For the AArch64 cases that don't need generic expansion, fixed-length
search vectors have a higher cost than scalable vectors due to the extra
instructions to convert the boolean mask.



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