{"ast_node_type":"variable","tokens":[{"end":67,"kind":"keyword","start":0,"text":"let"}]}
                let vec_ty = bx.cx.type_vector(bx.cx.type_i8(), 8);
            if let Primitive::Int(Integer::I8, _) = s.primitive() {
                bx.insert_element(bx.const_undef(vec_ty), value, bx.const_i32(0))