452   unsigned bf1 : 2;  member
480   ++bf1 + ++bf1; // cxx11-warning {{multiple unsequenced modifications to 'bf1'}}  in member_f()
482   bf1 + ++bf1; // cxx11-warning {{unsequenced modification and access to 'bf1'}}  in member_f()
484   ++bf1 + ++bf2; // no-warning TODO {{multiple unsequenced modifications to}}  in member_f()
485   bf1 + ++bf2; // no-warning TODO {{unsequenced modification and access to}}  in member_f()
488   ++s.bf1 + ++s.bf1; // no-warning TODO {{multiple unsequenced modifications to}}  in member_f()
489   s.bf1 + ++s.bf1; // no-warning TODO {{unsequenced modification and access to}}  in member_f()
490   ++s.bf1 + ++s.bf2; // no-warning TODO {{multiple unsequenced modifications to}}  in member_f()
491   s.bf1 + ++s.bf2; // no-warning TODO {{unsequenced modification and access to}}  in member_f()
493   ++bf1 + ++s.bf1; // no-warning  in member_f()
494   bf1 + ++s.bf1; // no-warning  in member_f()
495   ++bf1 + ++s.bf2; // no-warning  in member_f()
496   bf1 + ++s.bf2; // no-warning  in member_f()