int main(int argc, const char *argv[]) { unsigned S, NS = 10, V; const __llvm_profile_data *Data, *DataEnd; setFunctionPointers(); Data = __llvm_profile_begin_data(); DataEnd = __llvm_profile_end_data(); for (; Data < DataEnd; Data = __llvm_profile_iterate_data(Data)) { void *func = __llvm_get_function_addr(Data); if (func == caller_without_value_site1 || func == caller_without_value_site2 || func == callee1 || func == callee2 || func == main) continue; __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data, 0 /*IPVK_IndirectCallTarget */, 10); if (func == caller_with_value_site_never_called1 || func == caller_with_value_site_never_called2) continue; for (S = 0; S < NS; S++) { unsigned C; for (C = 0; C < S + 1; C++) { __llvm_profile_instrument_target((uint64_t)callee1Ptr, (void *)Data, S); if (C % 2 == 0) __llvm_profile_instrument_target((uint64_t)callee2Ptr, (void *)Data, S); } } } }
int main(int argc, const char *argv[]) { unsigned S, NS = 0, I, V, doInstrument = 1; const __llvm_profile_data *Data, *DataEnd; if (argc >= 2 && !strcmp(argv[1], "DO_NOT_INSTRUMENT")) doInstrument = 0; for (I = 0; I < 128; I++) { CallerInfos[I].CallerAddr = CallerAddrs[I]; CallerInfos[I].NS = I; } qsort(CallerInfos, sizeof(CallerInfos) / sizeof(CallerInfo), sizeof(CallerInfo), cmpaddr); /* We will synthesis value profile data for 128 callers functions declared. * The number of value sites for each caller function is recorded in * the NS field of the CallerInfo object. For each value site, the number of * callee values is determined by the site index (modulo 8). The frequency * of each callee target synthesized is equal to V + 1, in which V is the * index of the target value for the callsite. */ Data = __llvm_profile_begin_data(); DataEnd = __llvm_profile_end_data(); for (; Data < DataEnd; Data = __llvm_profile_iterate_data(Data)) { void *func = __llvm_get_function_addr(Data); CallerInfo Key, *Res; Key.CallerAddr = func; Res = (CallerInfo *) bsearch(&Key, CallerInfos, sizeof(CallerInfos) / sizeof(CallerInfo), sizeof(CallerInfo), cmpaddr); if (Res) { NS = Res->NS; __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data, 0 /*IPVK_IndirectCallTarget */, NS); if (!doInstrument) { continue; } for (S = 0; S < NS; S++) { for (V = 0; V < S % 8; V++) { unsigned C; for (C = 0; C < V + 1; C++) __llvm_profile_instrument_target((uint64_t)CalleeAddrs[V], (void *)Data, S); } } } } }
int main(int argc, const char *argv[]) { unsigned S, NS = 0, V, doInstrument = 1; const __llvm_profile_data *Data, *DataEnd; if (argc < 2) doInstrument = 0; qsort(CallerAddrs, sizeof(CallerAddrs) / sizeof(void *), sizeof(void *), cmpaddr); /* We will synthesis value profile data for 128 callers functions. * The number of * value sites. The number values for each value site * ranges from 0 to 8. */ Data = __llvm_profile_begin_data(); DataEnd = __llvm_profile_end_data(); for (; Data < DataEnd; Data = __llvm_profile_iterate_data(Data)) { void *func = __llvm_get_function_addr(Data); if (bsearch(&func, CallerAddrs, sizeof(CallerAddrs) / sizeof(void *), sizeof(void *), cmpaddr)) { __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data, 0 /*IPVK_IndirectCallTarget */, NS); if (!doInstrument) { NS++; continue; } for (S = 0; S < NS; S++) { for (V = 0; V < S % 8; V++) { unsigned C; for (C = 0; C < V + 1; C++) __llvm_profile_instrument_target((uint64_t)CalleeAddrs[V], (void *)Data, S); } } NS++; } } }