case kind::MULT:
case kind::NONLINEAR_MULT: return "*";
case kind::IAND: return "iand";
- case kind::POW2: return "POW2";
+ case kind::POW2: return "int.pow2";
case kind::EXPONENTIAL: return "exp";
case kind::SINE: return "sin";
case kind::COSINE: return "cos";
case kind::STRING_LT: return "str.<";
case kind::STRING_FROM_CODE: return "str.from_code";
case kind::STRING_TO_CODE: return "str.to_code";
+ case Kind::STRING_IS_DIGIT: return "str.is_digit";
case kind::STRING_ITOS: return "str.from_int";
case kind::STRING_STOI: return "str.to_int";
case kind::STRING_IN_REGEXP: return "str.in_re";