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 static int RegisterRuntime() { 14 __llvm_profile_initialize(); 15 #ifdef _AIX 16 extern COMPILER_RT_VISIBILITY void *__llvm_profile_keep[]; 17 (void)*(void *volatile *)__llvm_profile_keep; 18 #endif 19 return 0; 20 } 21 22 /* int __llvm_profile_runtime */ 23 COMPILER_RT_VISIBILITY int INSTR_PROF_PROFILE_RUNTIME_VAR = RegisterRuntime(); 24 } 25