316 	struct symbol *sym1, *sym2;  in expr_join_or()  local
328 		sym1 = tmp->left.sym;  in expr_join_or()
330 		sym1 = e1->left.sym;  in expr_join_or()
337 	if (sym1 != sym2)  in expr_join_or()
339 	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)  in expr_join_or()
341 	if (sym1->type == S_TRISTATE) {  in expr_join_or()
346 			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_no);  in expr_join_or()
352 			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_mod);  in expr_join_or()
358 			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_yes);  in expr_join_or()
361 	if (sym1->type == S_BOOLEAN) {  in expr_join_or()
381 	struct symbol *sym1, *sym2;  in expr_join_and()  local
393 		sym1 = tmp->left.sym;  in expr_join_and()
395 		sym1 = e1->left.sym;  in expr_join_and()
402 	if (sym1 != sym2)  in expr_join_and()
404 	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)  in expr_join_and()
410 		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);  in expr_join_and()
415 		return expr_alloc_symbol(sym1);  in expr_join_and()
420 		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);  in expr_join_and()
422 	if (sym1->type == S_TRISTATE) {  in expr_join_and()
427 				return sym2 != e2->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)  in expr_join_and()
434 				return sym2 != e1->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)  in expr_join_and()
441 			return expr_alloc_comp(E_EQUAL, sym1, &symbol_mod);  in expr_join_and()
447 			return expr_alloc_comp(E_EQUAL, sym1, &symbol_no);  in expr_join_and()
453 			return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);  in expr_join_and()