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>
113 lines
4.3 KiB
C++
113 lines
4.3 KiB
C++
//===-- Shared/Profile.h - Target independent OpenMP target RTL -*- C++ -*-===//
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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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// Macros to provide profile support via LLVM's time profiler.
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//
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//===----------------------------------------------------------------------===//
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#ifndef OMPTARGET_SHARED_PROFILE_H
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#define OMPTARGET_SHARED_PROFILE_H
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#include "Shared/Debug.h"
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#include "Shared/EnvironmentVar.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/TimeProfiler.h"
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/// Class that holds the singleton profiler and allows to start/end events.
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class Profiler {
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Profiler() {
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if (!ProfileTraceFile.isPresent())
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return;
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// TODO: Add an alias without LIBOMPTARGET
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// Flag to modify the profile granularity (in us).
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Int32Envar ProfileGranularity =
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Int32Envar("LIBOMPTARGET_PROFILE_GRANULARITY", 500);
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llvm::timeTraceProfilerInitialize(ProfileGranularity /*us=*/,
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"libomptarget");
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}
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~Profiler() {
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if (!ProfileTraceFile.isPresent())
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return;
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if (auto Err = llvm::timeTraceProfilerWrite(ProfileTraceFile.get(), "-"))
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REPORT("Error writing out the time trace: %s\n",
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llvm::toString(std::move(Err)).c_str());
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llvm::timeTraceProfilerCleanup();
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}
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// TODO: Add an alias without LIBOMPTARGET
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/// Flag to enable profiling which also specifies the file profile information
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/// is stored in.
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StringEnvar ProfileTraceFile = StringEnvar("LIBOMPTARGET_PROFILE");
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public:
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static Profiler &get() {
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static Profiler P;
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return P;
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}
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/// Manually begin a time section, with the given \p Name and \p Detail.
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/// Profiler copies the string data, so the pointers can be given into
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/// temporaries. Time sections can be hierarchical; every Begin must have a
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/// matching End pair but they can nest.
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void beginSection(llvm::StringRef Name, llvm::StringRef Detail) {
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llvm::timeTraceProfilerBegin(Name, Detail);
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}
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void beginSection(llvm::StringRef Name,
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llvm::function_ref<std::string()> Detail) {
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llvm::timeTraceProfilerBegin(Name, Detail);
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}
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/// Manually end the last time section.
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void endSection() { llvm::timeTraceProfilerEnd(); }
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};
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/// Time spend in the current scope, assigned to the function name.
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#define TIMESCOPE() llvm::TimeTraceScope TimeScope(__PRETTY_FUNCTION__)
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/// Time spend in the current scope, assigned to the function name and source
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/// info.
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#define TIMESCOPE_WITH_IDENT(IDENT) \
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SourceInfo SI(IDENT); \
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llvm::TimeTraceScope TimeScope(__FUNCTION__, SI.getProfileLocation())
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/// Time spend in the current scope, assigned to the given name and source
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/// info.
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#define TIMESCOPE_WITH_NAME_AND_IDENT(NAME, IDENT) \
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SourceInfo SI(IDENT); \
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llvm::TimeTraceScope TimeScope(NAME, SI.getProfileLocation())
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/// Time spend in the current scope, assigned to the function name and source
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/// info and RegionTypeMsg.
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#define TIMESCOPE_WITH_RTM_AND_IDENT(RegionTypeMsg, IDENT) \
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SourceInfo SI(IDENT); \
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std::string ProfileLocation = SI.getProfileLocation(); \
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std::string RTM = RegionTypeMsg; \
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llvm::TimeTraceScope TimeScope(__FUNCTION__, ProfileLocation + RTM)
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/// Time spend in the current scope, assigned to the regionType
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/// with details from runtime
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#define TIMESCOPE_WITH_DETAILS_AND_IDENT(RegionTypeMsg, Details, IDENT) \
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SourceInfo SI(IDENT); \
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std::string ProfileLocation = SI.getProfileLocation(); \
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llvm::TimeTraceScope TimeScope(RegionTypeMsg, ProfileLocation + Details)
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/// Time spend in the current scope, assigned to the function name and source
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/// with details
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#define TIMESCOPE_WITH_DETAILS(Details) \
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llvm::TimeTraceScope TimeScope(__FUNCTION__, Details)
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#endif // OMPTARGET_SHARED_PROFILE_H
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