gcc/testsuite/gcc.dg/20001117-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -finstrument-functions" } */
   3
   4 extern void abort (void);
   5 extern void exit (int);
   6
   7 double
   8 foo (double a, double b)
   9 {
  10   double c;
  11   if (0.0 < a)
  12     c = a;
  13   else if (b > 0.0)
  14     c = 0.0;
  15   else
  16     return 0;
  17   return 2.0 * (b - c);
  18 }
  19
  20 int main ()
  21 {
  22   if (foo (1.0, 4.0) != 6.0)
  23     abort ();
  24   exit (0);
  25 }
  26
  27 /* Abort on non-NULL CALL_SITE to ensure that __builtin_return_address
  28    was expanded properly.  */
  29 void __attribute__((no_instrument_function))
  30 __cyg_profile_func_enter(void *this_fn, void *call_site)
  31 {
  32   if (call_site == (void *)0)
  33     abort ();
  34 }
  35
  36 void __attribute__((no_instrument_function))
  37 __cyg_profile_func_exit(void *this_fn, void *call_site)
  38 {
  39   if (call_site == (void *)0)
  40     abort ();
  41 }
  42