[PATCH] D95106: [RISCV] Add isel patterns for SH*ADD(.UW)

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: frasercrmck, asb, luismarques, lewis-revill, simoncook, PaoloS, kito-cheng.
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This adds an initial set of patterns for these instructions. Its
more complicated that I would like for the sh*add.uw instructions
because there is no guaranteed canonicalization for shl/and with
constants.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95106

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoB.td
  llvm/test/CodeGen/RISCV/rv32Zba.ll
  llvm/test/CodeGen/RISCV/rv64Zba.ll

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