[PATCH] D139808: [RISCV] Add support for call returns to RISCVSExtWRemoval.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
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The implementation is inspired by code from PPCInstrInfo.

We look for a copy from X10(A0) preceded by an ADJCALLSTACKUP and
a PseudoCall. We use the PseudoCall to look up the IR function being
called to find it's return attributes.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D139808

Files:
  llvm/lib/Target/RISCV/RISCVSExtWRemoval.cpp
  llvm/test/CodeGen/RISCV/sextw-removal.ll

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