[PATCH] D105682: [AMDGPU] Handle functions in llvm's global ctors and dtors list

[Reshabh Sharma via Phabricator via llvm-commits]

rksharma created this revision.
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This patch introduces a new code object metadata field, ".kind" which is used to add support for init and fini kernels.

HSAStreamer will use function attributes, "device-init" and "device-fini" to distinguish between init and fini kernels from the regular kernels and will emit metadata with ".kind" set to "init" and "fini" respectively.

To reduce the number of init and fini kernels, the ctors and dtors present in the llvm's global.ctors and global.dtors lists are called from a single init and fini kernel respectively.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105682

Files:
  llvm/docs/AMDGPUUsage.rst
  llvm/lib/Target/AMDGPU/AMDGPU.h
  llvm/lib/Target/AMDGPU/AMDGPUCtorDtorLowering.cpp
  llvm/lib/Target/AMDGPU/AMDGPUHSAMetadataStreamer.cpp
  llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
  llvm/lib/Target/AMDGPU/CMakeLists.txt
  llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
  llvm/test/CodeGen/AMDGPU/lower-ctor-dtor.ll
  llvm/test/CodeGen/AMDGPU/lower-multiple-ctor-dtor.ll
  llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn

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