Named return value optimization

Question

Hello,
can anybody tell me wheather sun's CC does named return value
optimization for local variables of classes without copyconstructors?
Objects of classes with copy-constructor don't get optimized as you
can see in the attached example... (function return_indirect)
Is it possible to enable named return value optimization for classes with
copy-constructors?
Note: side effects in copy constructors may be ignored for returning values
says the standard...
Please take a look at the following code, which executes differently
with CC and gcc. (gcc does named return value optimization)
Thanks in advance for your feedback.
Cheers,
Tom
========== file nrvo.cc
#include <iostream>
using namespace std;
struct Int
     Int(void)
     : d(0)
     { cout << "Int::Int(void)" << endl; }
     Int(int i)
     : d(i)
     { cout << "Int::Int(void)" << endl; }
     Int(const Int &i)
     : d(i.d)
     { cout << "Int::Int(const Int &)" << endl; }
     ~Int(void)
     { cout << "Int::~Int(void)" << endl; }
     private:
     int d;
Int return_indirect(void)
     Int i;
     return i;
Int return_direct(void)
     return Int();
int main(void)
     Int i0(return_direct());
     Int i1(return_indirect());
     return 0;
====
gcc output:
Int::Int(void)
Int::Int(void)
Int::~Int(void)
Int::~Int(void)
====
CC output:
Int::Int(void)
Int::Int(void)
Int::Int(const Int &)
Int::~Int(void)
Int::~Int(void)
Int::~Int(void)

Answer 1

Sorry, but I couldn't find bug report/enhance request page for Sun Studio, so I'll write an enhancement request here.
Now I use Sun Studio 11. The C++ compile in it still doesn't have "named return value optimization".
Unfortunately, most of my co-workers don't pay attension how many times (implicit-) copy constructors and destructor are called. So they use temporary object very often to return values.
The optimization might improve our program's performance and memory use(to avoid fragmentation) drastically.
I really need it! I hope that Sun's developer find this topic and improve the C++ compiler in future.