[all-commits] [llvm/llvm-project] 7bc079: [TTI]Fallback to SingleSrcPermute shuffle kind, if...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7bc079c85219ad6e954fb6071cd108151203c85e
      https://github.com/llvm/llvm-project/commit/7bc079c85219ad6e954fb6071cd108151203c85e
  Author: Alexey Bataev <5361294+alexey-bataev at users.noreply.github.com>
  Date:   2024-02-12 (Mon, 12 Feb 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
    M llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
    M llvm/lib/Target/X86/X86TargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/AArch64/reduce-fadd.ll
    M llvm/test/Analysis/CostModel/AArch64/reduce-minmax.ll
    M llvm/test/Analysis/CostModel/X86/shuffle-extract_subvector-codesize.ll
    M llvm/test/Analysis/CostModel/X86/shuffle-extract_subvector-latency.ll
    M llvm/test/Analysis/CostModel/X86/shuffle-extract_subvector-sizelatency.ll
    M llvm/test/Analysis/CostModel/X86/shuffle-extract_subvector.ll
    M llvm/test/Transforms/LowerMatrixIntrinsics/dot-product-float.ll

  Log Message:
  -----------
  [TTI]Fallback to SingleSrcPermute shuffle kind, if no direct estimation for

extract subvector.

Many targets do not have cost for extractsubvector shuffle kind, but
have the costs for single source permute. If there are no costs
estimation for extractsubvector, better to switchto single source
permute for better cost estimation.

Reviewers: RKSimon, davemgreen, arsenm

Reviewed By: RKSimon

Pull Request: https://github.com/llvm/llvm-project/pull/79837