1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-optimized" } */
       3  signed char f(unsigned char a)
       4  {
       5    unsigned char b = a & 127;
       6    signed char c = (signed char) b;
       7    signed char d = (signed char) a;
       8    signed char e = d & -128;
       9    signed char h = c | e;
      10    return h;
      11  }
      12  /* The above should reduce down to just return with a cast.
      13     removing the two &s there and |'s. */
      14  /* { dg-final { scan-tree-dump-times "& 127" 0 "optimized"} } */
      15  /* { dg-final { scan-tree-dump-times "& -128" 0 "optimized"} } */
      16  /* { dg-final { scan-tree-dump-times "\\\| " 0 "optimized"} } */