Subversion Repositories openrisc_2011-10-31

/* PR c/25682 */

/* { dg-do compile } */

/* { dg-options "-ansi" } */

/* Test whether we don't ICE on questionable constructs where offsetof

   should have been used instead.  */

struct S

{

  char a[4];

  int b;

};

char c[(char *) &((struct S *) 0)->b - (char *) 0]; /* { dg-warning "variably modified" } */

char d[(__SIZE_TYPE__) &((struct S *) 8)->b]; /* { dg-warning "variably modified" } */

char e[sizeof (c) == __builtin_offsetof (struct S, b) ? 1 : -1];

char f[sizeof (d) == __builtin_offsetof (struct S, b) + 8 ? 1 : -1];

extern void bar (char *, char *);

void

foo (void)

{

  char g[(char *) &((struct S *) 0)->b - (char *) 0];

  char h[(__SIZE_TYPE__) &((struct S *) 8)->b];

  char i[sizeof (g) == __builtin_offsetof (struct S, b) ? 1 : -1];

  char j[sizeof (h) == __builtin_offsetof (struct S, b) + 8 ? 1 : -1];

  bar (g, h);

}