891 	ulong bb;  in paint1()  local
894 	bb = 1L<<(bn%32);  in paint1()
895 	if(r->act.b[z] & bb)  in paint1()
898 		if(!(r->refbehind.b[z] & bb))  in paint1()
903 		if(!(r1->refahead.b[z] & bb))  in paint1()
905 		if(r1->act.b[z] & bb)  in paint1()
910 	if(LOAD(r) & ~(r->set.b[z] & ~(r->use1.b[z]|r->use2.b[z])) & bb) {  in paint1()
917 		r->act.b[z] |= bb;  in paint1()
920 		if(r->use1.b[z] & bb) {  in paint1()
927 		if((r->use2.b[z]|r->set.b[z]) & bb) {  in paint1()
934 		if(STORE(r) & r->regdiff.b[z] & bb) {  in paint1()
941 		if(r->refbehind.b[z] & bb)  in paint1()
943 				if(r1->refahead.b[z] & bb)  in paint1()
946 		if(!(r->refahead.b[z] & bb))  in paint1()
950 			if(r1->refbehind.b[z] & bb)  in paint1()
955 		if(r->act.b[z] & bb)  in paint1()
957 		if(!(r->refbehind.b[z] & bb))  in paint1()
967 	ulong bb, vreg;  in paint2()  local
970 	bb = 1L << (bn%32);  in paint2()
972 	if(!(r->act.b[z] & bb))  in paint2()
975 		if(!(r->refbehind.b[z] & bb))  in paint2()
980 		if(!(r1->refahead.b[z] & bb))  in paint2()
982 		if(!(r1->act.b[z] & bb))  in paint2()
987 		r->act.b[z] &= ~bb;  in paint2()
991 		if(r->refbehind.b[z] & bb)  in paint2()
993 				if(r1->refahead.b[z] & bb)  in paint2()
996 		if(!(r->refahead.b[z] & bb))  in paint2()
1000 			if(r1->refbehind.b[z] & bb)  in paint2()
1005 		if(!(r->act.b[z] & bb))  in paint2()
1007 		if(!(r->refbehind.b[z] & bb))  in paint2()
1019 	ulong bb;  in paint3()  local
1022 	bb = 1L << (bn%32);  in paint3()
1023 	if(r->act.b[z] & bb)  in paint3()
1026 		if(!(r->refbehind.b[z] & bb))  in paint3()
1031 		if(!(r1->refahead.b[z] & bb))  in paint3()
1033 		if(r1->act.b[z] & bb)  in paint3()
1038 	if(LOAD(r) & ~(r->set.b[z] & ~(r->use1.b[z]|r->use2.b[z])) & bb)  in paint3()
1041 		r->act.b[z] |= bb;  in paint3()
1044 		if(r->use1.b[z] & bb) {  in paint3()
1051 		if((r->use2.b[z]|r->set.b[z]) & bb) {  in paint3()
1059 		if(STORE(r) & r->regdiff.b[z] & bb)  in paint3()
1063 		if(r->refbehind.b[z] & bb)  in paint3()
1065 				if(r1->refahead.b[z] & bb)  in paint3()
1068 		if(!(r->refahead.b[z] & bb))  in paint3()
1072 			if(r1->refbehind.b[z] & bb)  in paint3()
1077 		if(r->act.b[z] & bb)  in paint3()
1079 		if(!(r->refbehind.b[z] & bb))  in paint3()