852 	ulong bb;  in paint1()  local
855 	bb = 1L<<(bn%32);  in paint1()
856 	if(r->act.b[z] & bb)  in paint1()
859 		if(!(r->refbehind.b[z] & bb))  in paint1()
864 		if(!(r1->refahead.b[z] & bb))  in paint1()
866 		if(r1->act.b[z] & bb)  in paint1()
871 	if(LOAD(r) & ~(r->set.b[z]&~(r->use1.b[z]|r->use2.b[z])) & bb) {  in paint1()
878 		r->act.b[z] |= bb;  in paint1()
881 		if(r->use1.b[z] & bb) {  in paint1()
890 		if((r->use2.b[z]|r->set.b[z]) & bb) {  in paint1()
899 		if(STORE(r) & r->regdiff.b[z] & bb) {  in paint1()
906 		if(r->refbehind.b[z] & bb)  in paint1()
908 				if(r1->refahead.b[z] & bb)  in paint1()
911 		if(!(r->refahead.b[z] & bb))  in paint1()
915 			if(r1->refbehind.b[z] & bb)  in paint1()
920 		if(r->act.b[z] & bb)  in paint1()
922 		if(!(r->refbehind.b[z] & bb))  in paint1()
932 	ulong bb, vreg;  in paint2()  local
935 	bb = 1L << (bn%32);  in paint2()
937 	if(!(r->act.b[z] & bb))  in paint2()
940 		if(!(r->refbehind.b[z] & bb))  in paint2()
945 		if(!(r1->refahead.b[z] & bb))  in paint2()
947 		if(!(r1->act.b[z] & bb))  in paint2()
952 		r->act.b[z] &= ~bb;  in paint2()
956 		if(r->refbehind.b[z] & bb)  in paint2()
958 				if(r1->refahead.b[z] & bb)  in paint2()
961 		if(!(r->refahead.b[z] & bb))  in paint2()
965 			if(r1->refbehind.b[z] & bb)  in paint2()
970 		if(!(r->act.b[z] & bb))  in paint2()
972 		if(!(r->refbehind.b[z] & bb))  in paint2()
984 	ulong bb;  in paint3()  local
987 	bb = 1L << (bn%32);  in paint3()
988 	if(r->act.b[z] & bb)  in paint3()
991 		if(!(r->refbehind.b[z] & bb))  in paint3()
996 		if(!(r1->refahead.b[z] & bb))  in paint3()
998 		if(r1->act.b[z] & bb)  in paint3()
1003 	if(LOAD(r) & ~(r->set.b[z] & ~(r->use1.b[z]|r->use2.b[z])) & bb)  in paint3()
1006 		r->act.b[z] |= bb;  in paint3()
1009 		if(r->use1.b[z] & bb) {  in paint3()
1016 		if((r->use2.b[z]|r->set.b[z]) & bb) {  in paint3()
1024 		if(STORE(r) & r->regdiff.b[z] & bb)  in paint3()
1028 		if(r->refbehind.b[z] & bb)  in paint3()
1030 				if(r1->refahead.b[z] & bb)  in paint3()
1033 		if(!(r->refahead.b[z] & bb))  in paint3()
1037 			if(r1->refbehind.b[z] & bb)  in paint3()
1042 		if(r->act.b[z] & bb)  in paint3()
1044 		if(!(r->refbehind.b[z] & bb))  in paint3()