1  /* PR middle-end/37248 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -fdump-tree-optimized" } */
       4  
       5  struct S
       6  {
       7    unsigned char a : 1;
       8    unsigned char b : 1;
       9    unsigned char c : 1;
      10  } s;
      11  
      12  int
      13  foo (struct S x)
      14  {
      15    return x.a && x.b && x.c;
      16  }
      17  
      18  /* { dg-final { scan-tree-dump "& 7;" "optimized" } } */
      19  /* { dg-final { scan-tree-dump "== 7;" "optimized" } } */