Questions before submitting a bug report

[Markus Henschel]

Hello,

I think I found a bug in gcc but before I submit it I'd like to have someone look at least briefly on the code to make sure I did not make some silly mistake.

*********************************************schnipp***************
struct Foo
{
	long long _foobar;
};

struct Foo * foo_instance()
{
	static struct Foo foo;
	return &foo;
}

void bar(struct Foo * foo)
{
	__sync_add_and_fetch(&foo->_foobar, 1LL);
}


int main(int argc, char * argv[])
{
	struct Foo * foo=foo_instance();
	foo->_foobar=argc;
	bar(foo);
	return (int)foo->_foobar;
}
*********************************************schnapp***************

Is there some obvious flaw in my code? 

My second question is if it makes any sense to submit this bug if it's against gcc version 4.2.4. I still have to use this compiler version but the bug seems to have vanished in version 4.3.3. Is 4.2.4 still maintained?

Thanks for your time.

Markus