gcc/testsuite/gcc.dg/tree-ssa/alias-5.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 struct {
   5         int i;
   6         struct {
   7                 struct {
   8                         int i;
   9                 } x[2];
  10         } b;
  11 } a;
  12
  13 int foo(void)
  14 {
  15         a.i = 1;
  16         a.b.x[0].i = 0;
  17         a.b.x[1].i = 1;
  18         return a.i + a.b.x[0].i;
  19 }
  20
  21 /* { dg-final { scan-tree-dump "return 1;" "optimized" } } */
  22