Subversion Repositories openrisc_2011-10-31

/* { dg-do run } */

/* { dg-options "-O2 -fomit-frame-pointer" } */

/* { dg-options "-O2 -fomit-frame-pointer -march=i386" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */

extern void abort (void);

extern void exit (int);

struct S

{

  int *a;

  unsigned char *b, c;

};

int u, v, w;

void

foo (unsigned short x)

{

  u += x;

}

int

bar (struct S **x, int *y)

{

  w += *y;

  *y = w + 25;

  return 0;

}

int

baz (struct S **x)

{

  struct S *y = *x;

  unsigned char *a = y->b;

  foo (*a);

  if (__builtin_expect (y->c != 0 || y->a == &v, 0))

    return 1;

  if (__builtin_expect (*a == 1, 0))

    {

      int a, b = bar (x, &a);

      if (a)

        return b;

    }

  return 0;

}

int

main (void)

{

  struct S a, *b = &a;

  unsigned char c;

  __builtin_memset (b, 0, sizeof (a));

  a.a = &v;

  a.b = &c;

  if (baz (&b) != 1)

    abort ();

  exit (0);

}