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extern int strcmp(const char *, const char *);
extern char *strcpy(char *, const char *);
extern void abort(void);
extern void exit(int);
 
void *buf[20];
 
void __attribute__((noinline))
sub2 (void)
{
  __builtin_longjmp (buf, 1);
}
 
int
main ()
{
  char *p = (char *) __builtin_alloca (20);
 
  strcpy (p, "test");
 
  if (__builtin_setjmp (buf))
    {
      if (strcmp (p, "test") != 0)
	abort ();
 
      exit (0);
    }
 
  {
    int *q = (int *) __builtin_alloca (p[2] * sizeof (int));
    int i;
 
    for (i = 0; i < p[2]; i++)
      q[i] = 0;
 
    while (1)
      sub2 ();
  }
}