Sibcall on recursive functions

[Paulo J. Matos]

Hi all,

I have the following function:
unsigned int fact_aux(unsigned int n, unsigned int k)
{
    if(n == 0)
        return k;
    else
        return fact_aux(n - 1, k * n);
}

unsigned int facti(unsigned int n)
{
    return fact_aux(n, 1);
}


Gcc4.3.4 when I compile functions with : -Os -fno-inline-functions
-fno-inline-small-functions
calls TARGET_FUNCTION_OK_FOR_SIBCALL for the fact_aux call in facti,
but it does not  call TARGET_FUNCTION_OK_FOR_SIBCALL for the fact_aux
recursive call, why?

-- 
Paulo Jorge Matos - pocmatos at gmail.com
http://www.pmatos.net