[PATCH] D125364: [RISCV] Replace ISD::FP_EXTEND and ISD::FP_ROUND with RVV VL op.

[Jianjian Guan via Phabricator via llvm-commits]

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This patch tries to solve the incoordination between the direct and intermediate  cast caused by D123975 <https://reviews.llvm.org/D123975>.
This patch replaces ISD::FP_EXTEND and ISD::FP_ROUND with RVV VL op in the lowering of FP scalable vector direct cast to unify with the intermediate cast.
And it also changes the FP widenning pattern with the VL op.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125364

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td
  llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td

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