Intel® C++ Compiler 16.0 User and Reference Guide
The Intel® C++ Class Libraries are functions abstracted from the instruction extensions available on Intel® processors.
Refer to http://software.intel.com/en-us/articles/performance-tools-for-software-developers-intel-compiler-options-for-sse-generation-and-processor-specific-optimizations/ for information on which Intel® processors use each instruction set.