gcc/testsuite/c-c++-common/pr51628-7.c

   1 /* PR c/51628.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O" } */
   4
   5 struct pair_t
   6 {
   7   int x;
   8   int i[4];
   9 } __attribute__((packed, aligned (4)));
  10
  11 extern struct pair_t p;
  12 extern int *x;
  13 extern void bar (int *);
  14
  15 int *addr = p.i;
  16
  17 int *
  18 foo (struct pair_t *p)
  19 {
  20   int *p0, *p1;
  21   p0 = p->i;
  22   bar (p0);
  23   p1 = &p->i[1];
  24   bar (p1);
  25   bar (p->i);
  26   bar (&p->i[2]);
  27   x = p->i;
  28   return &p->i[3];
  29 }