bolt/test/Inputs/jump_table_icp.cpp

   1 #include "stub.h"
   2
   3 int total = 0;
   4
   5 int inc(int x) {
   6   switch (x) {
   7     case 0: total += 1 + 0; return 1;
   8     case 1: total += 1 + 1; return 2;
   9     case 2: total += 1 + 2; return 3;
  10     case 3: total += 1 + 3; return 4;
  11     case 4: total += 1 + 4; return 5;
  12     case 5: total += 1 + 5; return 6;
  13     default: return x + 1;
  14   }
  15 }
  16
  17 int inc_dup(int x) {
  18   switch (x) {
  19     case 0: total += 2 + 0; return 1;
  20     case 1: total += 2 + 1; return 2;
  21     case 2: total += 2 + 2; return 3;
  22     case 3: total += 2 + 3; return 4;
  23     case 4: total += 2 + 4; return 5;
  24     case 5: total += 2 + 5; return 6;
  25     default: return x + 1;
  26   }
  27 }
  28
  29 int main() {
  30   int c = 0;
  31   for (int i = 0; i < 10000000; ++i) {
  32     int a = rand() % 7;
  33     int b = rand() % 7;
  34     c += inc(a) - 2*inc_dup(b);
  35   }
  36   return c == 0;
  37 }