{"ast_node_type":"variable","tokens":[{"end":77,"kind":"keyword","start":0,"text":"let"}]}
                    let cmp = self.call_intrinsic("memcmp", &[], &[a, b, n]);
                    let n = self.const_usize(layout.size().bytes());
                    self.icmp(IntPredicate::IntEQ, cmp, self.const_int(self.type_int(), 0))