[all-commits] [llvm/llvm-project] 8c3cb9: [CodeGen][NPM] Port MachinePipeliner to NPM (#221676)

[Vikram Hegde via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8c3cb9c166e8f5ade26bc90a4a4cf5ec628f894f
      https://github.com/llvm/llvm-project/commit/8c3cb9c166e8f5ade26bc90a4a4cf5ec628f894f
  Author: Vikram Hegde <Vikram.Hegde at amd.com>
  Date:   2026-09-09 (Wed, 09 Sep 2026)

  Changed paths:
    M llvm/include/llvm/CodeGen/MachinePipeliner.h
    M llvm/include/llvm/InitializePasses.h
    M llvm/include/llvm/Passes/MachinePassRegistry.def
    M llvm/lib/CodeGen/CodeGen.cpp
    M llvm/lib/CodeGen/MachinePipeliner.cpp
    M llvm/lib/Passes/PassBuilder.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/test/CodeGen/AMDGPU/swp-amdgpu-pipeline-epilog-phi.mir
    M llvm/test/CodeGen/AMDGPU/swp-amdgpu-pipeline-gen-structure.mir
    M llvm/test/CodeGen/AMDGPU/swp-amdgpu-pipeline-loop-carried-mem.mir

  Log Message:
  -----------
  [CodeGen][NPM] Port MachinePipeliner to NPM (#221676)

changes of note,
1. registers the pass with AMDGPUCodeGenPassBuilder::addPreRegAlloc()
2. Changes the core MachinePipeliner::run() method to return actual
"Changed" state



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