[PATCH] D121771: [RISCV] Add basic cost model for vector casting.x

[Yeting Kuo via Phabricator via llvm-commits]

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To perform the cost model of vector casting, the patch consider most vector
casts as their scalar form and consider those vector form of free scalr castings
as 1.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121771

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

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