To help you answer this question, may I know what kind of simulation files are you looking for? What kind of simulation are you planning to do?
The altera_mf.vhd and altera_mf_components.vhd files are device-independent and can be located in the \quartus\eda\sim_lib directory.
Just a note you will need access to Quartus 13.0sp1 or earlier to find any include files specific to the Cyclone EP1C family.
For more complete information about compiler optimizations, see our Optimization Notice.