ns = @names clp64le {
	union foo {
		@0 struct {
			@@0 uint8 a : 1;
			@@1 uint8 b : 1;
			@@2 uint8 c : 1;
			@@3 uint64 d : 61;
		} bits;
		@0 uint64 raw;
		@8;
	};
};

dom = mkdom(ns, mkzas(8));
p = (union dom`foo *){dom}0;

p->raw = 0xdeadbeefdeadbee3;
/* expect deadbeefdeadbee0 1 1 0 */
printf("%x %d %d %d\n", p->bits.d << 3, p->bits.a, p->bits.b, p->bits.c);
/* expect baddcafebaddcaf3 */
p->bits.d = 0xbaddcafebaddcaf0 >> 3;
printf("%x\n", p->raw);