1  /* Verify pattern initialization for union type with structure field with
       2     padding.  */ 
       3  /* { dg-do compile } */
       4  /* { dg-options "-ftrivial-auto-var-init=pattern -fdump-rtl-expand" } */
       5  
       6  struct test_trailing_hole {
       7          int one;
       8          int two;
       9          int three;
      10          char four;
      11          /* "sizeof(unsigned long) - 1" byte padding hole here. */
      12  };
      13  
      14  union test_union_padding {
      15    struct test_trailing_hole u1;
      16    long long u2;
      17  };
      18  
      19  
      20  int foo ()
      21  {
      22    union test_union_padding var;
      23    return var.u1.four;
      24  }
      25  
      26  /* { dg-final { scan-rtl-dump-times "0xfffffffffffffffe\\\]\\\) repeated x16" 1 "expand" } } */
      27