In some cases like debugging and performance analysis, you may want to get the data on the difference between various processor-specific codes on the same machine. Use the
function for this. This function sets the dispatcher to use the processor-specific code according to the specified set of CPU features. You can obtain features supported by CPU using
and obtain features supported by the currently dispatched Intel IPP Cryptography code using
. If you need to enable support of some CPU features without querying the system (without using the CPUID instruction call), you must set the
, otherwise, only the features supported by the current CPU are set.