[all-commits] [llvm/llvm-project] ac68dd: [RISCV][NewPM] Port RISCVCodeGenPrepare to the new...

[Alex Bradbury via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ac68dd53ed035047fb68abb471d2e1eb8b31cbfd
      https://github.com/llvm/llvm-project/commit/ac68dd53ed035047fb68abb471d2e1eb8b31cbfd
  Author: Alex Bradbury <asb at igalia.com>
  Date:   2025-11-19 (Wed, 19 Nov 2025)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCV.h
    M llvm/lib/Target/RISCV/RISCVCodeGenPrepare.cpp
    A llvm/lib/Target/RISCV/RISCVPassRegistry.def
    M llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
    M llvm/test/CodeGen/RISCV/riscv-codegenprepare.ll

  Log Message:
  -----------
  [RISCV][NewPM] Port RISCVCodeGenPrepare to the new pass manager (#168381)

As suggested in the review for #160536 it would be good to follow up and
port the RISC-V passes to the new pass manager. This PR starts that
task. It provides the bare minimum necessary to run RISCVCodeGenPrepare
with opt -passes=riscv-codegenprepare. The approach used is modeled on
my observations of the AMDGPU backend and the recent work to port the
X86 passes.

The testing approach is to add a `-passes=riscv-foo` RUN line to at
least one test, if an appropriate test exists.



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