gcc/testsuite/gcc.dg/tree-prof/pr34999.c

   1 /* Same test as built-in-setjmp.c.  Includes the case where
   2    the source block of a crossing fallthru edge ends with a call.  */
   3 /* { dg-require-effective-target freorder } */
   4 /* { dg-options "-O2 -freorder-blocks-and-partition" } */
   5
   6 extern int strcmp(const char *, const char *);
   7 extern char *strcpy(char *, const char *);
   8 extern void abort(void);
   9 extern void exit(int);
  10
  11 void *buf[20];
  12
  13 void __attribute__((noinline))
  14 sub2 (void)
  15 {
  16   __builtin_longjmp (buf, 1);
  17 }
  18
  19 int
  20 main ()
  21 {
  22   char *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 }
  45