[PATCH] D149169: [RISCV] Cost constant materialization of vectors in phis

[Luke Lau via Phabricator via llvm-commits]

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If a phi has a constant operand it will need to be materialized at some
point, so account for this cost by reusing the logic used for store
immediates.
This should eventually be improved to also handle scalar constants.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149169

Files:
  llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
  llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
  llvm/test/Analysis/CostModel/RISCV/rvv-phi-const.ll
  llvm/test/Transforms/LoopVectorize/RISCV/strided-accesses.ll

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