902 	ulong bb;  in paint1()  local
905 	bb = 1L<<(bn%32);  in paint1()
906 	if(r->act.b[z] & bb)  in paint1()
909 		if(!(r->refbehind.b[z] & bb))  in paint1()
914 		if(!(r1->refahead.b[z] & bb))  in paint1()
916 		if(r1->act.b[z] & bb)  in paint1()
921 	if(LOAD(r) & ~(r->set.b[z] & ~(r->use1.b[z]|r->use2.b[z])) & bb) {  in paint1()
928 		r->act.b[z] |= bb;  in paint1()
931 		if(r->use1.b[z] & bb) {  in paint1()
938 		if((r->use2.b[z]|r->set.b[z]) & bb) {  in paint1()
945 		if(STORE(r) & r->regdiff.b[z] & bb) {  in paint1()
952 		if(r->refbehind.b[z] & bb)  in paint1()
954 				if(r1->refahead.b[z] & bb)  in paint1()
957 		if(!(r->refahead.b[z] & bb))  in paint1()
961 			if(r1->refbehind.b[z] & bb)  in paint1()
966 		if(r->act.b[z] & bb)  in paint1()
968 		if(!(r->refbehind.b[z] & bb))  in paint1()
978 	ulong bb, vreg;  in paint2()  local
981 	bb = 1L << (bn%32);  in paint2()
983 	if(!(r->act.b[z] & bb))  in paint2()
986 		if(!(r->refbehind.b[z] & bb))  in paint2()
991 		if(!(r1->refahead.b[z] & bb))  in paint2()
993 		if(!(r1->act.b[z] & bb))  in paint2()
998 		r->act.b[z] &= ~bb;  in paint2()
1002 		if(r->refbehind.b[z] & bb)  in paint2()
1004 				if(r1->refahead.b[z] & bb)  in paint2()
1007 		if(!(r->refahead.b[z] & bb))  in paint2()
1011 			if(r1->refbehind.b[z] & bb)  in paint2()
1016 		if(!(r->act.b[z] & bb))  in paint2()
1018 		if(!(r->refbehind.b[z] & bb))  in paint2()
1030 	ulong bb;  in paint3()  local
1033 	bb = 1L << (bn%32);  in paint3()
1034 	if(r->act.b[z] & bb)  in paint3()
1037 		if(!(r->refbehind.b[z] & bb))  in paint3()
1042 		if(!(r1->refahead.b[z] & bb))  in paint3()
1044 		if(r1->act.b[z] & bb)  in paint3()
1049 	if(LOAD(r) & ~(r->set.b[z] & ~(r->use1.b[z]|r->use2.b[z])) & bb)  in paint3()
1052 		r->act.b[z] |= bb;  in paint3()
1055 		if(r->use1.b[z] & bb) {  in paint3()
1062 		if((r->use2.b[z]|r->set.b[z]) & bb) {  in paint3()
1070 		if(STORE(r) & r->regdiff.b[z] & bb)  in paint3()
1074 		if(r->refbehind.b[z] & bb)  in paint3()
1076 				if(r1->refahead.b[z] & bb)  in paint3()
1079 		if(!(r->refahead.b[z] & bb))  in paint3()
1083 			if(r1->refbehind.b[z] & bb)  in paint3()
1088 		if(r->act.b[z] & bb)  in paint3()
1090 		if(!(r->refbehind.b[z] & bb))  in paint3()