[PATCH] D134746: [RISCV] Adjust vector immediate store materialization cost

[Philip Reames via Phabricator via llvm-commits]

reames created this revision.
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This change updates the costs to make constant pool loads match their actual cost, and adds the broadcast special case to avoid too many regressions.  We really need more information about the constants being rematerialized, but this is an incremental improvement.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D134746

Files:
  llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/RISCV/rvv-load-store.ll
  llvm/test/Transforms/SLPVectorizer/RISCV/load-store.ll
  llvm/test/Transforms/SLPVectorizer/RISCV/rvv-min-vector-size.ll

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