gcc/testsuite/gcc.dg/tree-ssa/foldaddr-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized" } */
   3 union a
   4 {
   5   struct s1
   6   {
   7     long long a;
   8     long long b;
   9   } s1;
  10   struct s2
  11   {
  12     int c;
  13     int d;
  14   } s2;
  15   struct s3
  16   {
  17     unsigned long long e;
  18     unsigned long long f;
  19   } s3;
  20 } a;
  21 int *
  22 t ()
  23 {
  24   return (int *) &a;
  25 }
  26
  27 /* { dg-final { scan-tree-dump "a.s2.c" "optimized"} } */
  28 /* { dg-final { cleanup-tree-dump "optimized" } } */