compiler-rt/test/profile/instrprof-value-prof.c

   1 // RUN: %clang_profgen -mllvm -enable-value-profiling -mllvm -vp-static-alloc=false  -O2 -o %t %s
   2 // RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
   3 // RUN: env LLVM_PROFILE_FILE=%t-2.profraw %run %t DO_NOT_INSTRUMENT
   4 // RUN: llvm-profdata merge -o %t.profdata %t.profraw
   5 // RUN: llvm-profdata merge -o %t-2.profdata %t-2.profraw
   6 // RUN: llvm-profdata merge -o %t-merged.profdata %t.profraw %t-2.profdata
   7 // RUN: llvm-profdata show --all-functions -ic-targets  %t-2.profdata | FileCheck  %s -check-prefix=NO-VALUE
   8 // RUN: llvm-profdata show --all-functions -ic-targets  %t.profdata | FileCheck  %s
   9 // RUN: llvm-profdata show --all-functions -ic-targets  %t-merged.profdata | FileCheck  %s
  10 //
  11 // RUN: env LLVM_PROFILE_FILE=%t-3.profraw LLVM_VP_BUFFER_SIZE=1 %run %t
  12 // RUN: env LLVM_PROFILE_FILE=%t-4.profraw LLVM_VP_BUFFER_SIZE=8 %run %t
  13 // RUN: env LLVM_PROFILE_FILE=%t-5.profraw LLVM_VP_BUFFER_SIZE=128 %run %t
  14 // RUN: env LLVM_PROFILE_FILE=%t-6.profraw LLVM_VP_BUFFER_SIZE=1024 %run %t
  15 // RUN: env LLVM_PROFILE_FILE=%t-7.profraw LLVM_VP_BUFFER_SIZE=102400 %run %t
  16 // RUN: llvm-profdata merge -o %t-3.profdata %t-3.profraw
  17 // RUN: llvm-profdata merge -o %t-4.profdata %t-4.profraw
  18 // RUN: llvm-profdata merge -o %t-5.profdata %t-5.profraw
  19 // RUN: llvm-profdata merge -o %t-6.profdata %t-6.profraw
  20 // RUN: llvm-profdata merge -o %t-7.profdata %t-7.profraw
  21 // RUN: llvm-profdata show --all-functions -ic-targets  %t-3.profdata | FileCheck  %s
  22 // RUN: llvm-profdata show --all-functions -ic-targets  %t-4.profdata | FileCheck  %s
  23 // RUN: llvm-profdata show --all-functions -ic-targets  %t-5.profdata | FileCheck  %s
  24 // RUN: llvm-profdata show --all-functions -ic-targets  %t-6.profdata | FileCheck  %s
  25 // RUN: llvm-profdata show --all-functions -ic-targets  %t-7.profdata | FileCheck  %s
  26
  27 #include <stdint.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 typedef struct __llvm_profile_data __llvm_profile_data;
  32 const __llvm_profile_data *__llvm_profile_begin_data(void);
  33 const __llvm_profile_data *__llvm_profile_end_data(void);
  34 void __llvm_profile_set_num_value_sites(__llvm_profile_data *Data,
  35                                         uint32_t ValueKind,
  36                                         uint16_t NumValueSites);
  37 __llvm_profile_data *
  38 __llvm_profile_iterate_data(const __llvm_profile_data *Data);
  39 void *__llvm_get_function_addr(const __llvm_profile_data *Data);
  40 void __llvm_profile_instrument_target(uint64_t TargetValue, void *Data,
  41                                       uint32_t CounterIndex);
  42
  43 #define DEF_FUNC(x)                                                            \
  44   void x() {}
  45 #define DEF_2_FUNCS(x) DEF_FUNC(x##_1) DEF_FUNC(x##_2)
  46 #define DEF_4_FUNCS(x) DEF_2_FUNCS(x##_1) DEF_2_FUNCS(x##_2)
  47 #define DEF_8_FUNCS(x) DEF_4_FUNCS(x##_1) DEF_4_FUNCS(x##_2)
  48 #define DEF_16_FUNCS(x) DEF_8_FUNCS(x##_1) DEF_8_FUNCS(x##_2)
  49 #define DEF_32_FUNCS(x) DEF_16_FUNCS(x##_1) DEF_16_FUNCS(x##_2)
  50 #define DEF_64_FUNCS(x) DEF_32_FUNCS(x##_1) DEF_32_FUNCS(x##_2)
  51 #define DEF_128_FUNCS(x) DEF_64_FUNCS(x##_1) DEF_64_FUNCS(x##_2)
  52
  53 #define FUNC_ADDR(x) &x,
  54 #define FUNC_2_ADDRS(x) FUNC_ADDR(x##_1) FUNC_ADDR(x##_2)
  55 #define FUNC_4_ADDRS(x) FUNC_2_ADDRS(x##_1) FUNC_2_ADDRS(x##_2)
  56 #define FUNC_8_ADDRS(x) FUNC_4_ADDRS(x##_1) FUNC_4_ADDRS(x##_2)
  57 #define FUNC_16_ADDRS(x) FUNC_8_ADDRS(x##_1) FUNC_8_ADDRS(x##_2)
  58 #define FUNC_32_ADDRS(x) FUNC_16_ADDRS(x##_1) FUNC_16_ADDRS(x##_2)
  59 #define FUNC_64_ADDRS(x) FUNC_32_ADDRS(x##_1) FUNC_32_ADDRS(x##_2)
  60 #define FUNC_128_ADDRS(x) FUNC_64_ADDRS(x##_1) FUNC_64_ADDRS(x##_2)
  61
  62 DEF_8_FUNCS(callee)
  63 DEF_128_FUNCS(caller)
  64
  65 void *CallerAddrs[] = {FUNC_128_ADDRS(caller)};
  66 void *CalleeAddrs[] = {FUNC_8_ADDRS(callee)};
  67 typedef struct CallerInfo {
  68     void *CallerAddr;
  69     uint32_t NS; /* Number value sites. */
  70 } CallerInfo;
  71
  72 CallerInfo CallerInfos[128];
  73
  74 int cmpaddr(const void *p1, const void *p2) {
  75   CallerInfo *addr1 = (CallerInfo *)p1;
  76   CallerInfo *addr2 = (CallerInfo *)p2;
  77   return (intptr_t)addr2->CallerAddr - (intptr_t)addr1->CallerAddr;
  78 }
  79
  80 int main(int argc, const char *argv[]) {
  81   unsigned S, NS = 0, I, V, doInstrument = 1;
  82   const __llvm_profile_data *Data, *DataEnd;
  83
  84   if (argc >= 2 && !strcmp(argv[1], "DO_NOT_INSTRUMENT"))
  85     doInstrument = 0;
  86
  87   for (I = 0; I < 128; I++) {
  88      CallerInfos[I].CallerAddr = CallerAddrs[I];
  89      CallerInfos[I].NS = I;
  90   }
  91   qsort(CallerInfos, sizeof(CallerInfos) / sizeof(CallerInfo), sizeof(CallerInfo),
  92         cmpaddr);
  93
  94   /* We will synthesis value profile data for 128 callers functions declared.
  95    * The number of value sites for each caller function is recorded in
  96    * the NS field of the CallerInfo object. For each value site, the number of
  97    * callee values is determined by the site index (modulo 8). The frequency
  98    * of each callee target synthesized is equal to V + 1, in which V is the
  99    * index of the target value for the callsite. */
 100
 101   Data = __llvm_profile_begin_data();
 102   DataEnd = __llvm_profile_end_data();
 103
 104   for (; Data < DataEnd; Data = __llvm_profile_iterate_data(Data)) {
 105     void *func = __llvm_get_function_addr(Data);
 106     CallerInfo Key, *Res;
 107     Key.CallerAddr = func;
 108     Res = (CallerInfo *) bsearch(&Key, CallerInfos, sizeof(CallerInfos) / sizeof(CallerInfo),
 109                                  sizeof(CallerInfo), cmpaddr);
 110     if (Res) {
 111       NS = Res->NS;
 112       __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data,
 113                                          0 /*IPVK_IndirectCallTarget */, NS);
 114       if (!doInstrument) {
 115         continue;
 116       }
 117       for (S = 0; S < NS; S++) {
 118         for (V = 0; V < S % 8; V++) {
 119           unsigned C;
 120           for (C = 0; C < V + 1; C++)
 121             __llvm_profile_instrument_target((uint64_t)CalleeAddrs[V],
 122                                              (void *)Data, S);
 123         }
 124       }
 125     }
 126   }
 127 }
 128
 129 // NO-VALUE: Indirect Call Site Count: 127
 130 // NO-VALUE-NEXT: Indirect Target Results:
 131 // CHECK-LABEL: caller_1_1_1_1_2_2_1:
 132 // CHECK: Indirect Call Site Count: 6
 133 // CHECK-NEXT: Indirect Target Results:
 134 // CHECK-NEXT: [ 1, callee_1_1_1, 1 ]
 135 // CHECK-NEXT: [ 2, callee_1_1_2, 2 ]
 136 // CHECK-NEXT: [ 2, callee_1_1_1, 1 ]
 137 // CHECK-NEXT: [ 3, callee_1_2_1, 3 ]
 138 // CHECK-NEXT: [ 3, callee_1_1_2, 2 ]
 139 // CHECK-NEXT: [ 3, callee_1_1_1, 1 ]
 140 // CHECK-NEXT: [ 4, callee_1_2_2, 4 ]
 141 // CHECK-NEXT: [ 4, callee_1_2_1, 3 ]
 142 // CHECK-NEXT: [ 4, callee_1_1_2, 2 ]
 143 // CHECK-NEXT: [ 4, callee_1_1_1, 1 ]
 144 // CHECK-NEXT: [ 5, callee_2_1_1, 5 ]
 145 // CHECK-NEXT: [ 5, callee_1_2_2, 4 ]
 146 // CHECK-NEXT: [ 5, callee_1_2_1, 3 ]
 147 // CHECK-NEXT: [ 5, callee_1_1_2, 2 ]
 148 // CHECK-NEXT: [ 5, callee_1_1_1, 1 ]
 149 // CHECK-LABEL: caller_2_2_2_2_2_2_2:
 150 // CHECK: Indirect Call Site Count: 127
 151 // CHECK-NEXT: Indirect Target Results:
 152 // CHECK-NEXT:  [ 1, callee_1_1_1, 1 ]
 153 // CHECK-NEXT:  [ 2, callee_1_1_2, 2 ]
 154 // CHECK-NEXT:  [ 2, callee_1_1_1, 1 ]
 155 // CHECK-NEXT:  [ 3, callee_1_2_1, 3 ]
 156 // CHECK-NEXT:  [ 3, callee_1_1_2, 2 ]
 157 // CHECK-NEXT:  [ 3, callee_1_1_1, 1 ]
 158 // CHECK-NEXT:  [ 4, callee_1_2_2, 4 ]
 159 // CHECK-NEXT:  [ 4, callee_1_2_1, 3 ]
 160 // CHECK-NEXT:  [ 4, callee_1_1_2, 2 ]
 161 // CHECK-NEXT:  [ 4, callee_1_1_1, 1 ]
 162 // CHECK-NEXT:  [ 5, callee_2_1_1, 5 ]
 163 // CHECK-NEXT:  [ 5, callee_1_2_2, 4 ]
 164 // CHECK-NEXT:  [ 5, callee_1_2_1, 3 ]
 165 // CHECK-NEXT:  [ 5, callee_1_1_2, 2 ]
 166 // CHECK-NEXT:  [ 5, callee_1_1_1, 1 ]
 167 // CHECK-NEXT:  [ 6, callee_2_1_2, 6 ]
 168 // CHECK-NEXT:  [ 6, callee_2_1_1, 5 ]
 169 // CHECK-NEXT:  [ 6, callee_1_2_2, 4 ]
 170 // CHECK-NEXT:  [ 6, callee_1_2_1, 3 ]
 171 // CHECK-NEXT:  [ 6, callee_1_1_2, 2 ]
 172 // CHECK-NEXT:  [ 6, callee_1_1_1, 1 ]
 173 // CHECK-NEXT:  [ 7, callee_2_2_1, 7 ]
 174 // CHECK-NEXT:  [ 7, callee_2_1_2, 6 ]
 175 // CHECK-NEXT:  [ 7, callee_2_1_1, 5 ]
 176 // CHECK-NEXT:  [ 7, callee_1_2_2, 4 ]
 177 // CHECK-NEXT:  [ 7, callee_1_2_1, 3 ]
 178 // CHECK-NEXT:  [ 7, callee_1_1_2, 2 ]
 179 // CHECK-NEXT:  [ 7, callee_1_1_1, 1 ]
 180 // CHECK-NEXT:  [ 9, callee_1_1_1, 1 ]
 181 // CHECK-NEXT:  [ 10, callee_1_1_2, 2 ]
 182 // CHECK-NEXT:  [ 10, callee_1_1_1, 1 ]
 183 // CHECK-NEXT:  [ 11, callee_1_2_1, 3 ]
 184 // CHECK-NEXT:  [ 11, callee_1_1_2, 2 ]
 185 // CHECK-NEXT:  [ 11, callee_1_1_1, 1 ]
 186 // CHECK-NEXT:  [ 12, callee_1_2_2, 4 ]
 187 // CHECK-NEXT:  [ 12, callee_1_2_1, 3 ]
 188 // CHECK-NEXT:  [ 12, callee_1_1_2, 2 ]
 189 // CHECK-NEXT:  [ 12, callee_1_1_1, 1 ]
 190 // CHECK-NEXT:  [ 13, callee_2_1_1, 5 ]
 191 // CHECK-NEXT:  [ 13, callee_1_2_2, 4 ]
 192 // CHECK-NEXT:  [ 13, callee_1_2_1, 3 ]
 193 // CHECK-NEXT:  [ 13, callee_1_1_2, 2 ]
 194 // CHECK-NEXT:  [ 13, callee_1_1_1, 1 ]
 195 // CHECK-NEXT:  [ 14, callee_2_1_2, 6 ]
 196 // CHECK-NEXT:  [ 14, callee_2_1_1, 5 ]
 197 // CHECK-NEXT:  [ 14, callee_1_2_2, 4 ]
 198 // CHECK-NEXT:  [ 14, callee_1_2_1, 3 ]
 199 // CHECK-NEXT:  [ 14, callee_1_1_2, 2 ]
 200 // CHECK-NEXT:  [ 14, callee_1_1_1, 1 ]
 201 // CHECK-NEXT:  [ 15, callee_2_2_1, 7 ]
 202 // CHECK-NEXT:  [ 15, callee_2_1_2, 6 ]
 203 // CHECK-NEXT:  [ 15, callee_2_1_1, 5 ]
 204 // CHECK-NEXT:  [ 15, callee_1_2_2, 4 ]
 205 // CHECK-NEXT:  [ 15, callee_1_2_1, 3 ]
 206 // CHECK-NEXT:  [ 15, callee_1_1_2, 2 ]
 207 // CHECK-NEXT:  [ 15, callee_1_1_1, 1 ]
 208 // CHECK-NEXT:  [ 17, callee_1_1_1, 1 ]
 209 // CHECK-NEXT:  [ 18, callee_1_1_2, 2 ]
 210 // CHECK-NEXT:  [ 18, callee_1_1_1, 1 ]
 211 // CHECK-NEXT:  [ 19, callee_1_2_1, 3 ]
 212 // CHECK-NEXT:  [ 19, callee_1_1_2, 2 ]
 213 // CHECK-NEXT:  [ 19, callee_1_1_1, 1 ]
 214 // CHECK-NEXT:  [ 20, callee_1_2_2, 4 ]
 215 // CHECK-NEXT:  [ 20, callee_1_2_1, 3 ]
 216 // CHECK-NEXT:  [ 20, callee_1_1_2, 2 ]
 217 // CHECK-NEXT:  [ 20, callee_1_1_1, 1 ]
 218 // CHECK-NEXT:  [ 21, callee_2_1_1, 5 ]
 219 // CHECK-NEXT:  [ 21, callee_1_2_2, 4 ]
 220 // CHECK-NEXT:  [ 21, callee_1_2_1, 3 ]
 221 // CHECK-NEXT:  [ 21, callee_1_1_2, 2 ]
 222 // CHECK-NEXT:  [ 21, callee_1_1_1, 1 ]
 223 // CHECK-NEXT:  [ 22, callee_2_1_2, 6 ]
 224 // CHECK-NEXT:  [ 22, callee_2_1_1, 5 ]
 225 // CHECK-NEXT:  [ 22, callee_1_2_2, 4 ]
 226 // CHECK-NEXT:  [ 22, callee_1_2_1, 3 ]
 227 // CHECK-NEXT:  [ 22, callee_1_1_2, 2 ]
 228 // CHECK-NEXT:  [ 22, callee_1_1_1, 1 ]
 229