[all-commits] [llvm/llvm-project] 505fce: [RISCV] Add basic code modeling for llvm.experimen...

[ChunyuLiao via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 505fce5a9e5fdc2e6cb3a410fe88960c9678ca6e
      https://github.com/llvm/llvm-project/commit/505fce5a9e5fdc2e6cb3a410fe88960c9678ca6e
  Author: LiaoChunyu <chunyu at iscas.ac.cn>
  Date:   2022-04-11 (Mon, 11 Apr 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
    A llvm/test/Analysis/CostModel/RISCV/stepvector.ll

  Log Message:
  -----------
  [RISCV] Add basic code modeling for llvm.experimental.stepvector intrinsic

Scalable vectors llvm.experimental.stepvector intrinsic
will crash due to an invalid cost when run the code through the loopunroll.

Reviewed By: kito-cheng

Differential Revision: https://reviews.llvm.org/D122782