gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/eeprof-1.c

   1 #define ASSERT(X)       if (!(X)) abort ();
   2 #define NOCHK __attribute__ ((no_instrument_function))
   3
   4 int entry_calls, exit_calls;
   5 void (*last_fn_entered)();
   6 void (*last_fn_exited)();
   7
   8 __attribute__ ((noinline))
   9 int main () NOCHK;
  10
  11 __attribute__ ((noinline))
  12 void foo ()
  13 {
  14   ASSERT (last_fn_entered == foo);
  15 }
  16
  17 __attribute__ ((noinline))
  18 static void foo2 ()
  19 {
  20   ASSERT (entry_calls == 1 && exit_calls == 0);
  21   ASSERT (last_fn_entered == foo2);
  22   foo ();
  23   ASSERT (entry_calls == 2 && exit_calls == 1);
  24   ASSERT (last_fn_entered == foo);
  25   ASSERT (last_fn_exited == foo);
  26 }
  27
  28 __attribute__ ((noinline))
  29 void nfoo (void) NOCHK;
  30 void nfoo ()
  31 {
  32   ASSERT (entry_calls == 2 && exit_calls == 2);
  33   ASSERT (last_fn_entered == foo);
  34   ASSERT (last_fn_exited == foo2);
  35   foo ();
  36   ASSERT (entry_calls == 3 && exit_calls == 3);
  37   ASSERT (last_fn_entered == foo);
  38   ASSERT (last_fn_exited == foo);
  39 }
  40
  41 int main ()
  42 {
  43   ASSERT (entry_calls == 0 && exit_calls == 0);
  44
  45   foo2 ();
  46
  47   ASSERT (entry_calls == 2 && exit_calls == 2);
  48   ASSERT (last_fn_entered == foo);
  49   ASSERT (last_fn_exited == foo2);
  50
  51   nfoo ();
  52
  53   ASSERT (entry_calls == 3 && exit_calls == 3);
  54   ASSERT (last_fn_entered == foo);
  55
  56   return 0;
  57 }
  58
  59 void __cyg_profile_func_enter (void (*fn)(), void (*parent)()) NOCHK;
  60 void __cyg_profile_func_exit (void (*fn)(), void (*parent)()) NOCHK;
  61
  62 __attribute__ ((noinline))
  63 void __cyg_profile_func_enter (void (*fn)(), void (*parent)())
  64 {
  65   entry_calls++;
  66   last_fn_entered = fn;
  67 }
  68 __attribute__ ((noinline))
  69 void __cyg_profile_func_exit (void (*fn)(), void (*parent)())
  70 {
  71   exit_calls++;
  72   last_fn_exited = fn;
  73 }