Work on my whirl2il thing is progressing:

kris@rainbow-colored-lizard:/tmp$ cat > foo.c
static int get_return_val (void)             
{
        return 23;
}
int main (void)
{
        int i = get_return_val ();
        return i;
}
kris@rainbow-colored-lizard:/tmp$ /source/open64/osprey1.0/targia32_ia64_nodebug/gccfe/gfec foo.c > /dev/null
kris@rainbow-colored-lizard:/tmp$ ~kris/projects/whirl2il/whirl2il foo.B > foo.il
kris@rainbow-colored-lizard:/tmp$ cat foo.il 
.module 'foo.B'
.method public static int32 get_return_val() cil managed {
        ldc.i4 23
        ret
}
.method public static int32 main() cil managed {
        .entrypoint
        .locals init (
                int32 i
        )
        call int32 get_return_val()
        stloc.0
        ldloc.0
        ret
}
kris@rainbow-colored-lizard:/tmp$ ilasm foo.il
Assembling 'foo.il' , no listing file, to exe --> 'foo.exe'
Compilation succeeded
kris@rainbow-colored-lizard:/tmp$ mono foo.exe
kris@rainbow-colored-lizard:/tmp$ echo $?
23