Unspecified means you pick a value at a specific point in time (the standard defines this point in time) and then you treat is a regular value. It is not the sa

Unspecified means you pick a value at a specific point in time (the standard defines this point in time) and then you treat is a regular value. It is not the same as poison. It might be similar to frozen poison, but I am not 100% sure about clang does there.