The Intel® Compilers 11.0 allow you to target the Intel® Atom™ processor using the /QxSSE3_ATOM or -xSSE3_ATOM compiler options. These options enable the generation of the movbe instruction which is unique to the Intel® Atom™ processor. However, there is sometimes a need to run such codes on a different processor such as the Intel® Pentium® III processor (for example, for validation purposes where an Intel® Atom™ processor isn't available). In these situations, the compiler provides the /Qinstruction:nomovbe (for Windows*) and -minstruction=nomovbe (for Linux*/Mac*) options to disable the generation of this instruction.
For more complete information about compiler optimizations, see our Optimization Notice.