330d8983d2
In a nutshell, this moves our libomptarget code to populate the offload subproject. With this commit, users need to enable the new LLVM/Offload subproject as a runtime in their cmake configuration. No further changes are expected for downstream code. Tests and other components still depend on OpenMP and have also not been renamed. The results below are for a build in which OpenMP and Offload are enabled runtimes. In addition to the pure `git mv`, we needed to adjust some CMake files. Nothing is intended to change semantics. ``` ninja check-offload ``` Works with the X86 and AMDGPU offload tests ``` ninja check-openmp ``` Still works but doesn't build offload tests anymore. ``` ls install/lib ``` Shows all expected libraries, incl. - `libomptarget.devicertl.a` - `libomptarget-nvptx-sm_90.bc` - `libomptarget.rtl.amdgpu.so` -> `libomptarget.rtl.amdgpu.so.18git` - `libomptarget.so` -> `libomptarget.so.18git` Fixes: https://github.com/llvm/llvm-project/issues/75124 --------- Co-authored-by: Saiyedul Islam <Saiyedul.Islam@amd.com>
59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
//===----------- rtl.cpp - Target independent OpenMP target RTL -----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Initialization and tear down of the offload runtime.
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//
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//===----------------------------------------------------------------------===//
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#include "OpenMP/OMPT/Callback.h"
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#include "PluginManager.h"
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#include "Shared/Debug.h"
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#include "Shared/Profile.h"
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#ifdef OMPT_SUPPORT
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extern void llvm::omp::target::ompt::connectLibrary();
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#endif
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static std::mutex PluginMtx;
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static uint32_t RefCount = 0;
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void initRuntime() {
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std::scoped_lock<decltype(PluginMtx)> Lock(PluginMtx);
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Profiler::get();
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TIMESCOPE();
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if (PM == nullptr)
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PM = new PluginManager();
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RefCount++;
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if (RefCount == 1) {
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DP("Init offload library!\n");
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#ifdef OMPT_SUPPORT
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// Initialize OMPT first
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llvm::omp::target::ompt::connectLibrary();
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#endif
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PM->init();
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PM->registerDelayedLibraries();
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}
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}
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void deinitRuntime() {
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std::scoped_lock<decltype(PluginMtx)> Lock(PluginMtx);
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assert(PM && "Runtime not initialized");
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if (RefCount == 1) {
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DP("Deinit offload library!\n");
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delete PM;
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PM = nullptr;
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}
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RefCount--;
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}
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