Subversion Repositories openrisc

/* PR middle-end/32758 */

/* HP-UX libunwind.so doesn't provide _UA_END_OF_STACK */

/* { dg-do run } */

/* { dg-options "-O2 -fexceptions" } */

/* { dg-skip-if "" { "ia64-*-hpux11.*" }  { "*" } { "" } } */

/* Verify unwind info in presence of alloca.  */

#include <unwind.h>

#include <stdlib.h>

#include <string.h>

static _Unwind_Reason_Code

force_unwind_stop (int version, _Unwind_Action actions,

                   _Unwind_Exception_Class exc_class,

                   struct _Unwind_Exception *exc_obj,

                   struct _Unwind_Context *context,

                   void *stop_parameter)

{

  if (actions & _UA_END_OF_STACK)

    abort ();

  return _URC_NO_REASON;

}

static void force_unwind (void)

{

  struct _Unwind_Exception *exc = malloc (sizeof (*exc));

  memset (&exc->exception_class, 0, sizeof (exc->exception_class));

  exc->exception_cleanup = 0;

#ifndef __USING_SJLJ_EXCEPTIONS__

  _Unwind_ForcedUnwind (exc, force_unwind_stop, 0);

#else

  _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);

#endif

  abort ();

}

__attribute__((noinline))

void foo (void *x __attribute__((unused)))

{

  force_unwind ();

}

__attribute__((noinline))

int bar (unsigned int x)

{

  void *y = __builtin_alloca (x);

  foo (y);

  return 1;

}

static void handler (void *p __attribute__((unused)))

{

  exit (0);

}

__attribute__((noinline))

static void doit ()

{

  char dummy __attribute__((cleanup (handler)));

  bar (1024);

}

int main ()

{

  doit ();

  abort ();

}