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/* Verify that unwinding can find SPE registers in signal frames.  */

/* Origin: Joseph Myers <joseph@codesourcery.com> */

/* { dg-do run { target { powerpc*-*-linux* && powerpc_spe } } } */

/* { dg-options "-fexceptions -fnon-call-exceptions -O2" } */

#include <unwind.h>

#include <stdlib.h>

#include <signal.h>

#include <string.h>

int count;

char *null;

int found_reg;

typedef int v2si __attribute__((__vector_size__(8)));

v2si v1 = { 123, 234 };

v2si v2 = { 345, 456 };

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)

{

  unsigned int reg;

  if (actions & _UA_END_OF_STACK)

    abort ();

  if (_Unwind_GetGR (context, 1215) == 123)

    found_reg = 1;

  return _URC_NO_REASON;

}

static void force_unwind ()

{

  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 ();

}

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

{

  ++count;

}

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

{

  if (count != 2)

    abort ();

  if (!found_reg)

    abort ();

  exit (0);

}

static int __attribute__((noinline)) fn5 ()

{

  char dummy __attribute__((cleanup (counter)));

  force_unwind ();

  return 0;

}

static void fn4 (int sig)

{

  char dummy __attribute__((cleanup (counter)));

  /* Clobber high part without compiler's knowledge so the only saved

     copy is from the signal frame.  */

  asm volatile ("evmergelo 15,15,15");

  fn5 ();

  null = NULL;

}

static void fn3 ()

{

  abort ();

}

static int __attribute__((noinline)) fn2 ()

{

  register v2si r15 asm("r15");

  r15 = v1;

  asm volatile ("" : "+r" (r15));

  *null = 0;

  fn3 ();

  return 0;

}

static int __attribute__((noinline)) fn1 ()

{

  signal (SIGSEGV, fn4);

  signal (SIGBUS, fn4);

  fn2 ();

  return 0;

}

static int __attribute__((noinline)) fn0 ()

{

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

  fn1 ();

  null = 0;

  return 0;

}

int main()

{

  fn0 ();

  abort ();

}