[PATCH] D133829: [RISCV] Add cost model for insertelement/extractelement of vector type that should be splitted.

[Jianjian Guan via Phabricator via llvm-commits]

jacquesguan created this revision.
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For the vector that should be splitted, legalizer would use stack store/load to make it. This patch adds cost model by counting stack store/load and scalar store/load cost.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133829

Files:
  llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/RISCV/arith-fp.ll
  llvm/test/Analysis/CostModel/RISCV/fixed-vector-gather.ll
  llvm/test/Analysis/CostModel/RISCV/fixed-vector-scatter.ll

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