[PATCH] D122782: [RISCV] Add basic code modeling for llvm.experimental.stepvector intrinsic

[Liao Chunyu via Phabricator via llvm-commits]

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


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D122782

Files:
  llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
  llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
  llvm/test/Analysis/CostModel/RISCV/stepvector.ll

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