To begin this tutorial, copy the file with the source code to a folder where you have write and execute permissions.
Copy the directory <install-dir>/samples_2016/<locale>/compiler_c/psxe/gfx_samples/ to a directory where you have write and execute permissions.
The content of the gfx_samples directory should be:
The compiler may be able to perform additional optimizations if it is able to optimize across source line boundaries. These may include, but are not limited to, function inlining. This is enabled with the /Qipo option.
Rebuild the program using the /Qipo option to enable interprocedural optimization.