1 //===- InstrProfilingRuntime.cpp - PGO runtime initialization -------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 extern "C" { 10 11 #include "InstrProfiling.h" 12 13 /* int __llvm_profile_runtime */ 14 COMPILER_RT_VISIBILITY int INSTR_PROF_PROFILE_RUNTIME_VAR; 15 } 16 17 namespace { 18 19 class RegisterRuntime { 20 public: 21 RegisterRuntime() { 22 __llvm_profile_register_write_file_atexit(); 23 __llvm_profile_initialize_file(); 24 } 25 }; 26 27 RegisterRuntime Registration; 28 29 } 30