gcc/testsuite/gcc.dg/torture/builtin-noret-2.c

   1 /* Test for builtin noreturn attributes when the visible declarations
   2    are function-local.  Modified from builtin-noret-1.c by Zack Weinberg
   3    <zack@codesourcery.com>.  */
   4 /* { dg-options "-multiply_defined suppress" { target powerpc-*-darwin* } } */
   5 /* { dg-do link } */
   6
   7 extern void tabort (void);
   8 extern void texit (void);
   9 extern void t_exit (void);
  10 extern void t_Exit (void);
  11
  12 extern void link_failure (void);
  13
  14 int
  15 main (void)
  16 {
  17   volatile int i = 0;
  18   if (i)
  19     tabort ();
  20   if (i)
  21     texit ();
  22   if (i)
  23     t_exit ();
  24   if (i)
  25     t_Exit ();
  26   exit (0);
  27 }
  28
  29 void
  30 tabort (void)
  31 {
  32   extern void abort (void);
  33   abort ();
  34   link_failure ();
  35 }
  36
  37 void
  38 texit (void)
  39 {
  40   extern void exit (int);
  41   exit (1);
  42   link_failure ();
  43 }
  44
  45 void
  46 t_exit (void)
  47 {
  48   extern void _exit (int);
  49   _exit (1);
  50   link_failure ();
  51 }
  52
  53 /* Some non-Unix libcs might not have _exit.  */
  54 void
  55 _exit (int i)
  56 {
  57   abort ();
  58 }
  59
  60 void
  61 t_Exit (void)
  62 {
  63   extern void _Exit (int);
  64   _Exit (1);
  65   link_failure ();
  66 }
  67
  68 /* Some libcs might not have _Exit.  */
  69 void
  70 _Exit (int i)
  71 {
  72   abort ();
  73 }