[PATCH] D105785: [RISCV] Add a helper function to allow ReplaceNodeResults to use sign extension for any_extend of i32 constants.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
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any_extend is constant folded as zero extension, but that's not
ideal for RISCV.

Use the helper for shifts, rotates, and uaddo/usubo. There are
still more cases to update, but we need tests first.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105785

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/alu32.ll
  llvm/test/CodeGen/RISCV/rv64zbb-zbp.ll
  llvm/test/CodeGen/RISCV/xaluo.ll

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