gcc/testsuite/gcc.dg/tree-ssa/alias-4.c

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