gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/981019-1.c

   1 extern int f2(void);
   2 extern int f3(void);
   3 extern void f1(void);
   4
   5 void
   6 ff(int fname, int part, int nparts)
   7 {
   8   if (fname)  /* bb 0 */
   9     {
  10       if (nparts)  /* bb 1 */
  11         f1();  /* bb 2 */
  12     }
  13   else
  14     fname = 2; /* bb 3  */
  15
  16   /* bb 4 is the branch to bb 10
  17      (bb 10 is physically at the end of the loop) */
  18   while (f3() /* bb 10 */)
  19     {
  20       if (nparts /* bb 5 */ && f2() /* bb 6 */)
  21         {
  22           f1();  /* bb 7 ... */
  23           nparts = part;
  24           if (f3())  /* ... bb 7 */
  25             f1();  /* bb 8 */
  26           f1(); /* bb 9 */
  27           break;
  28         }
  29     }
  30
  31   if (nparts)  /* bb 11 */
  32     f1(); /* bb 12 */
  33   return; /* bb 13 */
  34 }
  35
  36 int main(void)
  37 {
  38   ff(0, 1, 0);
  39   return 0;
  40 }
  41
  42 int f3(void) { static int x = 0; x = !x; return x; }
  43 void f1(void) { abort(); }
  44 int f2(void) { abort(); }