contract Test {
    u32[3][]  data;

    fn set(u32[3][]  _data) -> (u256) {
        data = _data;
        return data.length;
    }

    fn get() -> (u32[3][] ) {
        return data;
    }
}
// ====
// compileViaYul: also
// ----
// set(u32[3][]): 0x20, 0x06, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12  -> 0x06
// gas irOptimized: 189800
// gas legacy: 211149
// gas legacyOptimized: 206054
// data(u256,u256): 0x02, 0x02  -> 0x09
// data(u256,u256): 0x05, 0x01  -> 0x11
// data(u256,u256): 0x06, 0x00  -> FAILURE
// get()  -> 0x20, 0x06, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12