[all-commits] [llvm/llvm-project] 5fd2af: [PGO][OpenMP] Instrumentation for GPU devices (#76...

[Ethan Luis McDonough via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5fd2af38e461445c583d7ffc2fe23858966eee76
      https://github.com/llvm/llvm-project/commit/5fd2af38e461445c583d7ffc2fe23858966eee76
  Author: Ethan Luis McDonough <ethanluismcdonough at gmail.com>
  Date:   2024-06-28 (Fri, 28 Jun 2024)

  Changed paths:
    M clang/lib/CodeGen/CodeGenPGO.cpp
    M llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
    M llvm/include/llvm/ProfileData/InstrProf.h
    M llvm/lib/ProfileData/InstrProf.cpp
    M llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
    M llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
    M offload/DeviceRTL/CMakeLists.txt
    A offload/DeviceRTL/include/Profiling.h
    A offload/DeviceRTL/src/Profiling.cpp
    M offload/plugins-nextgen/common/include/GlobalHandler.h
    M offload/plugins-nextgen/common/src/GlobalHandler.cpp
    M offload/plugins-nextgen/common/src/PluginInterface.cpp
    M offload/test/CMakeLists.txt
    M offload/test/lit.cfg
    M offload/test/lit.site.cfg.in
    A offload/test/offloading/pgo1.c

  Log Message:
  -----------
  [PGO][OpenMP] Instrumentation for GPU devices (#76587)

This pull request is the first part of an ongoing effort to extends PGO
instrumentation to GPU device code. This PR makes the following changes:

- Adds blank registration functions to device RTL
- Gives PGO globals protected visibility when targeting a supported GPU
- Handles any addrspace casts for PGO calls
- Implements PGO global extraction in GPU plugins (currently only dumps
info)

These changes can be tested by supplying `-fprofile-instrument=clang`
while targeting a GPU.



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