{"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"let"}]}
                let builtin = self.context.get_builtin_function("memcmp");
                // Here we assume that the `memcmp` provided by the target is a NOP for size 0.
                let cmp = self.context.new_call(None, builtin, &[a_ptr, b_ptr, n]);