gcc/testsuite/gcc.dg/torture/stackalign/setjmp-1.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target indirect_jumps } */
   3
   4 extern int strcmp(const char *, const char *);
   5 extern char *strcpy(char *, const char *);
   6 extern void abort(void);
   7 extern void exit(int);
   8
   9 void *buf[20];
  10
  11 void __attribute__((noinline))
  12 sub2 (void)
  13 {
  14   __builtin_longjmp (buf, 1);
  15 }
  16
  17 int
  18 main ()
  19 {
  20   char *p = 0;
  21
  22   p = (char *) __builtin_alloca (20);
  23
  24   strcpy (p, "test");
  25
  26   if (__builtin_setjmp (buf))
  27     {
  28       if (strcmp (p, "test") != 0)
  29         abort ();
  30
  31       exit (0);
  32     }
  33
  34   {
  35     int *q = (int *) __builtin_alloca (p[2] * sizeof (int));
  36     int i;
  37
  38     for (i = 0; i < p[2]; i++)
  39       q[i] = 0;
  40
  41     while (1)
  42       sub2 ();
  43   }
  44 }