[all-commits] [llvm/llvm-project] 9c9491: [LLVM][PassBuilder] Extend the function signature ...

[Shilei Tian via All-commits]

  Branch: refs/heads/users/shiltian/extend-callback-signature
  Home:   https://github.com/llvm/llvm-project
  Commit: 9c949107271a303b7961cb2a1bea3157008323d6
      https://github.com/llvm/llvm-project/commit/9c949107271a303b7961cb2a1bea3157008323d6
  Author: Shilei Tian <i at tianshilei.me>
  Date:   2024-07-28 (Sun, 28 Jul 2024)

  Changed paths:
    M clang/lib/CodeGen/BackendUtil.cpp
    M llvm/include/llvm/Passes/PassBuilder.h
    M llvm/lib/Passes/PassBuilderPipelines.cpp
    M llvm/lib/Target/AMDGPU/AMDGPU.h
    M llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/tools/opt/NewPMDriver.cpp

  Log Message:
  -----------
  [LLVM][PassBuilder] Extend the function signature of callback for optimizer pipeline extension point

These callbacks can be invoked in multiple places when building an optimization
pipeline, both in compile time and link time. However, there is no indicator on
what pipeline it is currently building.

In this patch, an extra argument is added to indicate its (Thin)LTO stage such
that the callback can check it if needed. There is no test expected from this,
and the benefit of this change will be demonstrated in https://github.com/llvm/llvm-project/pull/66488.



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