364 	struct symbol *sym1, *sym2;  in expr_join_or()  local
376 		sym1 = tmp->left.sym;  in expr_join_or()
378 		sym1 = e1->left.sym;  in expr_join_or()
385 	if (sym1 != sym2)  in expr_join_or()
387 	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)  in expr_join_or()
389 	if (sym1->type == S_TRISTATE) {  in expr_join_or()
394 			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_no);  in expr_join_or()
400 			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_mod);  in expr_join_or()
406 			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_yes);  in expr_join_or()
409 	if (sym1->type == S_BOOLEAN && sym1 == sym2) {  in expr_join_or()
428 	struct symbol *sym1, *sym2;  in expr_join_and()  local
440 		sym1 = tmp->left.sym;  in expr_join_and()
442 		sym1 = e1->left.sym;  in expr_join_and()
449 	if (sym1 != sym2)  in expr_join_and()
451 	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)  in expr_join_and()
457 		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);  in expr_join_and()
462 		return expr_alloc_symbol(sym1);  in expr_join_and()
467 		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);  in expr_join_and()
469 	if (sym1->type == S_TRISTATE) {  in expr_join_and()
474 				return sym2 != e2->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)  in expr_join_and()
481 				return sym2 != e1->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)  in expr_join_and()
488 			return expr_alloc_comp(E_EQUAL, sym1, &symbol_mod);  in expr_join_and()
494 			return expr_alloc_comp(E_EQUAL, sym1, &symbol_no);  in expr_join_and()
500 			return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);  in expr_join_and()