The following table shows how to combine processor target and dispatch options to compile applications with different optimizations and exclusions.
Optimize exclusively for... |
...without excluding... |
|||||
---|---|---|---|---|---|---|
Intel |
Pentium Processor with MMX(TM) technology |
Pentium Pro Processor |
Pentium II Processor |
Pentium III Processor |
Pentium 4 Processor | |
Pentium Processor |
-tpp5 |
-tpp5 |
-tpp6 |
-tpp6 |
-tpp6 |
-tpp7 |
Pentium Processor with MMX(TM) technology |
N-A |
-tpp5, -xM |
-tpp6, -xM |
-tpp6, -xM |
-tpp6, -xM |
-tpp7, -xM |
Pentium Pro Processor |
N-A |
N-A |
-tpp6,-xi |
-tpp6,-xi |
-tpp6,-xi |
-tpp7,-xi |
Pentium II Processor |
N-A |
N-A |
N-A |
-tpp6,-xiM |
-tpp6,-xiM |
-tpp7,-xiM |
Pentium III Processor |
N-A |
N-A |
N-A |
N-A |
-tpp6,-xK |
-tpp7,-xK |
Pentium 4 Processor |
N-A |
N-A |
N-A |
N-A |
N-A |
-tpp7, -xW |
If you wanted your application to
you could generate such an application with the following command line:
prompt>icc -O2 -xM -axi myprog.cpp
-xM above restricts the application to running on Pentium processors with MMX(TM) technology or later processors. If you wanted to enable the application to run on earlier generations of Intel 32-bit processors as well, you would use the following command line:
prompt>icc -O2 -axiM myprog.cpp
Note that this specifically optimized code will run only on processors that support both the i and M extensions.