{"ast_node_type":"variable","tokens":[{"end":87,"kind":"keyword","start":0,"text":"let"}]}
                    let cmp = self.context.new_call(None, builtin, &[a_ptr, b_ptr, n]);
                    let builtin = self.context.get_builtin_function("memcmp");
                    self.icmp(IntPredicate::IntEQ, cmp, self.const_i32(0))