attribute pure and gcse

[Kaveh R. Ghazi]

 > A workaround is to repeat the function prototype including the pure
 > attribute *after* the function declaration, i.e.
 > 
 > static int square(int a) __attribute__ ((pure));
 > 
 > static int square(int a)
 > {
 > [...]
 > }
 > 
 > static int square(int a) __attribute__ ((pure));
 > 
 > int main()
 > {


Eww yuck. ;)

Instead put the attribute on the function definition and eliminate all
the prototypes.  Then there's no "duplicate" decl.  E.g.:

static int __attribute__ ((__pure__)) 
square(int a)
{
[...]
}

--
Kaveh R. Ghazi			ghazi@caip.rutgers.edu