[all-commits] [llvm/llvm-project] 8201cf: [TTI][CostModel] Add cost modeling for expandload ...

[Sergey Kachkov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8201cf311aea3888387f92f1b2ad48fcbce765eb
      https://github.com/llvm/llvm-project/commit/8201cf311aea3888387f92f1b2ad48fcbce765eb
  Author: Sergey Kachkov <109674256+skachkov-sc at users.noreply.github.com>
  Date:   2025-02-04 (Tue, 04 Feb 2025)

  Changed paths:
    M llvm/include/llvm/Analysis/TargetTransformInfo.h
    M llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
    M llvm/include/llvm/CodeGen/BasicTTIImpl.h
    M llvm/lib/Analysis/TargetTransformInfo.cpp
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
    M llvm/test/Analysis/CostModel/RISCV/gep.ll
    A llvm/test/Analysis/CostModel/RISCV/rvv-expandload-compressstore.ll
    M llvm/test/Analysis/CostModel/X86/masked-intrinsic-codesize.ll
    M llvm/test/Analysis/CostModel/X86/masked-intrinsic-cost-inseltpoison.ll
    M llvm/test/Analysis/CostModel/X86/masked-intrinsic-cost.ll
    M llvm/test/Analysis/CostModel/X86/masked-intrinsic-latency.ll
    M llvm/test/Analysis/CostModel/X86/masked-intrinsic-sizelatency.ll

  Log Message:
  -----------
  [TTI][CostModel] Add cost modeling for expandload and compressstore intrinsics (#122882)

This patch adds methods for cost estimation for
llvm.masked.expandload/llvm.masked.compressstore intrinsics in TTI. If
backend doesn't support custom lowering of these intrinsics it will be
processed by ScalarizeMaskedMemIntrin so we estimate its cost via
getCommonMaskedMemoryOpCost as gather/scatter operation; for RISC-V
backend, this patch implements custom hook to calculate the cost based
on current lowering scheme.



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