gcc/testsuite/gcc.c-torture/execute/builtins/abs-1.c

   1 /* Test for -fno-builtin-FUNCTION.  */
   2 /* Origin: Joseph Myers <jsm28@cam.ac.uk>.  */
   3 /* GCC normally handles abs and labs as built-in functions even without
   4    optimization.  So test that with -fno-builtin-abs, labs is so handled
   5    but abs isn't.  */
   6
   7 int abs_called = 0;
   8
   9 extern int abs (int);
  10 extern long labs (long);
  11 extern void abort (void);
  12 extern void exit (int);
  13
  14 void
  15 main_test (void)
  16 {
  17   if (labs (0) != 0)
  18     abort ();
  19   if (abs (0) != 0)
  20     abort ();
  21   if (!abs_called)
  22     abort ();
  23 }