duplicate a variable!!!!

[Greicy.Costa-Marques@imag.fr]

Hi all,

I'd like to know if is possible to gcc to duplicate  a variable? for example

....
int a=2; i have this

i want to do it: int a_1=2, a_2=2;

I have a code in c and i want to modify the gcc so it makes the  
duplication of the variable. i like to do it at the level of RTL to ASM.
I  know that there is a function (output_asm_insn) in final.c that  
goes from RTL to ASM.
would anyone have any suggestions to do this?

thanks in advance....
greicy