gcc/testsuite/gcc.dg/pr51628-18.c

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