fde2d23ee2
This pull request is a revised version of #76587. This pull request fixes some build issues that were present in the previous version of this change. > 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.
23 lines
808 B
C++
23 lines
808 B
C++
//===------- Profiling.cpp ---------------------------------------- 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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#include "Profiling.h"
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#pragma omp begin declare target device_type(nohost)
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extern "C" {
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// Provides empty implementations for certain functions in compiler-rt
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// that are emitted by the PGO instrumentation.
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void __llvm_profile_register_function(void *Ptr) {}
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void __llvm_profile_register_names_function(void *Ptr, long int I) {}
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void __llvm_profile_instrument_memop(long int I, void *Ptr, int I2) {}
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}
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#pragma omp end declare target
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