{
    let x := calldataload(1)
    let a := add(x, 10)
    sstore(a, 7)
    // This clears the expression assigned to ``a`` but
    // should not clear storage knowledge
    x := 9
    mstore(sload(a), 11)
    // This, on the other hand, actually clears knowledge
    a := 33
    mstore(sload(a), 11)
    // Try again with different expression to avoid
    // clearing because we cannot know if it is different
    a := 39
    mstore(sload(a), 11)
}
// ----
// step: loadResolver
//
// {
//     {
//         let x := calldataload(1)
//         let a := add(x, 10)
//         let _3 := 7
//         sstore(a, _3)
//         x := 9
//         let _4 := 11
//         mstore(_3, _4)
//         a := 33
//         mstore(sload(a), _4)
//         a := 39
//         mstore(sload(a), _4)
//     }
// }