gcc/testsuite/gcc.c-torture/execute/eeprof-1.c

   1 /* { dg-require-effective-target return_address } */
   2 /* { dg-options "-finstrument-functions" } */
   3 /* { dg-xfail-run-if "" { powerpc-ibm-aix* } } */
   4
   5 extern void abort (void);
   6
   7 #define ASSERT(X)       if (!(X)) abort ();
   8 #define NOCHK __attribute__ ((no_instrument_function))
   9
  10 int entry_calls, exit_calls;
  11 void (*last_fn_entered)();
  12 void (*last_fn_exited)();
  13
  14 __attribute__ ((noinline))
  15 int main () NOCHK;
  16
  17 __attribute__ ((noinline))
  18 void foo ()
  19 {
  20   ASSERT (last_fn_entered == foo);
  21 }
  22
  23 __attribute__ ((noinline))
  24 static void foo2 ()
  25 {
  26   ASSERT (entry_calls == 1 && exit_calls == 0);
  27   ASSERT (last_fn_entered == foo2);
  28   foo ();
  29   ASSERT (entry_calls == 2 && exit_calls == 1);
  30   ASSERT (last_fn_entered == foo);
  31   ASSERT (last_fn_exited == foo);
  32 }
  33
  34 __attribute__ ((noinline))
  35 void nfoo (void) NOCHK;
  36 void nfoo ()
  37 {
  38   ASSERT (entry_calls == 2 && exit_calls == 2);
  39   ASSERT (last_fn_entered == foo);
  40   ASSERT (last_fn_exited == foo2);
  41   foo ();
  42   ASSERT (entry_calls == 3 && exit_calls == 3);
  43   ASSERT (last_fn_entered == foo);
  44   ASSERT (last_fn_exited == foo);
  45 }
  46
  47 int main ()
  48 {
  49   ASSERT (entry_calls == 0 && exit_calls == 0);
  50
  51   foo2 ();
  52
  53   ASSERT (entry_calls == 2 && exit_calls == 2);
  54   ASSERT (last_fn_entered == foo);
  55   ASSERT (last_fn_exited == foo2);
  56
  57   nfoo ();
  58
  59   ASSERT (entry_calls == 3 && exit_calls == 3);
  60   ASSERT (last_fn_entered == foo);
  61
  62   return 0;
  63 }
  64
  65 void __cyg_profile_func_enter (void (*fn)(), void (*parent)()) NOCHK;
  66 void __cyg_profile_func_exit (void (*fn)(), void (*parent)()) NOCHK;
  67
  68 __attribute__ ((noinline))
  69 void __cyg_profile_func_enter (void (*fn)(), void (*parent)())
  70 {
  71   entry_calls++;
  72   last_fn_entered = fn;
  73 }
  74 __attribute__ ((noinline))
  75 void __cyg_profile_func_exit (void (*fn)(), void (*parent)())
  76 {
  77   exit_calls++;
  78   last_fn_exited = fn;
  79 }