src/binaryen/test/control_flow.cpp

   1 #include <cmath>
   2 #include <algorithm>
   3 #include <emscripten.h>
   4
   5 extern "C" {
   6
   7 int EMSCRIPTEN_KEEPALIVE check_if(int x) {
   8   if (x < 10) x++;
   9   return x;
  10 }
  11
  12 int EMSCRIPTEN_KEEPALIVE check_loop(int x) {
  13   while (x < 100) x *= 2;
  14   return x;
  15 }
  16
  17 int EMSCRIPTEN_KEEPALIVE check_loop_break(int x) {
  18   while (x < 100) {
  19     x *= 2;
  20     if (x > 30) break;
  21     x++;
  22   }
  23   return x;
  24 }
  25
  26 int EMSCRIPTEN_KEEPALIVE check_loop_continue(int x) {
  27   while (x < 100) {
  28     x *= 2;
  29     if (x > 30) continue;
  30     x++;
  31   }
  32   return x;
  33 }
  34
  35 int EMSCRIPTEN_KEEPALIVE check_do_loop(int x) {
  36   do {
  37     x *= 2;
  38     if (x > 1000) break;
  39     x--;
  40     if (x > 30) continue;
  41     x++;
  42   } while (x < 100);
  43   return x;
  44 }
  45
  46 int EMSCRIPTEN_KEEPALIVE check_do_once(int x) {
  47   do {
  48     x *= 2;
  49     if (x > 1000) break;
  50     x--;
  51     if (x > 30) continue;
  52     x++;
  53   } while (0);
  54   return x;
  55 }
  56
  57 int EMSCRIPTEN_KEEPALIVE check_while_forever(int x) {
  58   while (1) {
  59     x *= 2;
  60     if (x > 1000) break;
  61     x--;
  62     if (x > 30) continue;
  63     x++;
  64   }
  65   return x;
  66 }
  67
  68 int EMSCRIPTEN_KEEPALIVE check_switch(int x) {
  69   switch (x) {
  70     case 1: return 10;
  71     case 3: return 20;
  72     case 5: return 30;
  73     case 10: return 40;
  74     case 11: return 50;
  75     default: return 60;
  76   }
  77   return 70;
  78 }
  79
  80 int EMSCRIPTEN_KEEPALIVE check_switch_nodefault(int x) {
  81   switch (x) {
  82     case 1: return 10;
  83     case 3: return 20;
  84     case 5: return 30;
  85     case 10: return 40;
  86     case 11: return 50;
  87   }
  88   return 70;
  89 }
  90
  91 int EMSCRIPTEN_KEEPALIVE check_switch_rdefault(int x) {
  92   switch (x) {
  93     default: return -60;
  94     case 1: return 10;
  95     case 3: return 20;
  96     case 5: return 30;
  97     case 10: return 40;
  98     case 11: return 50;
  99   }
 100   return 70;
 101 }
 102
 103 int EMSCRIPTEN_KEEPALIVE check_switch_fallthrough(int x) {
 104   switch (x) {
 105     case 1: return 10;
 106     case 2:
 107     case 3: x++;
 108     case 5: return x;
 109     case 10: return 40;
 110     case 11: return 50;
 111     default: return 60;
 112   }
 113   return 70;
 114 }
 115
 116 }
 117