[PATCH] D128271: [RISCV][NFC] Map pseudos to their BaseInstr to reduce cases

[Wang Pengcheng via Phabricator via llvm-commits]

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There are a lot of cases for pseudos of the same instruction, here
we just use existed mapping table to map pseudos to real instructions
to reduce cases.

I think this change is a NFC except the concern about _TU pseudos.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D128271

Files:
  llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp

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