How to modify the itanium target info

[Sandro Camata <camata@xxxxxxxxxxx>]

How can I modify the instruction latency and functional unit resource quantity? 
Is the file itanium_si.cxx the only file to change?
How the "issue" resource quantity information is used in this file?
I tried to change the issue resource from 6 to 15 (in file itanium_si.cxx) but 
when running the compiler I got an error "Error: Signal Segmentation fault in 
phase Software Pipelining".
I'm making experiments to compare some architetures and I need to have a 
normalized number of functional units and instruction latency.

Thanks

Sandro Camata
camata@xxxxxxxxxxxx
UFES - Universidade Federal do Espírito Santo - Brasil