[all-commits] [llvm/llvm-project] 842d22: [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: 842d2229369b47a98a531ca29b80195d97a152d0
      https://github.com/llvm/llvm-project/commit/842d2229369b47a98a531ca29b80195d97a152d0
  Author: Shilei Tian <i at tianshilei.me>
  Date:   2024-08-01 (Thu, 01 Aug 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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