[PATCH] D105682: [AMDGPU] Handle functions in llvm's global ctors and dtors list
Reshabh Sharma via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jul 9 01:40:03 PDT 2021
rksharma created this revision.
rksharma added reviewers: t-tye, b-sumner, yaxunl, arsenm.
Herald added subscribers: foad, kerbowa, hiraditya, tpr, dstuttard, mgorny, nhaehnle, jvesely, kzhuravl.
rksharma requested review of this revision.
Herald added subscribers: llvm-commits, wdng.
Herald added a project: LLVM.
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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