For functions which the user has supplied function-wide semantics, I would like to see a flag/mode that allows the provided semantics to essentially "override" the inputs to the function.

For example, if I provide a "np" semantic for a function, I don't want to see a message for possible use of NULL pointer generated within the function; I have already provided a semantic that the parameter is not NULL. Similarly with integral parameters, if I provide a semantic that "1n < 2" and then use that parameter to index into a 2 element array, I don't want to see "possible index out of range" by a billion because the input is considered "unknown".

This is clearly predicated on the semantics already being verified as called, as they are through messages 418, 419, 422, 426 and the like.