insufficient inline optimisation?

[Anthony Shipman <als at iinet dot net dot au>]

I have a C++ class and code that looks like this:

#include <iostream>
using namespace std;

class Z
{
public:
    Z() {}
    ~Z() {}

protected:
    int     z_;
};


int
main(int argc, char** argv)
{
    Z   buf[100];

    cout << sizeof(buf) << endl;
    return 0;
}

The compiler version is 4.01 (on Fedora 4). If I compile with -O0 then the 
creation of buf results in a loop being generated which calls the Z() 
constructor 100 times.

But then if I compile with -O the constructor will be inlined. The generated 
machine code contains a loop which does nothing 100 times:
	movl	$100, %eax
.L11:
	decl	%eax
	jne	.L11

I think that the optimiser should get rid of the loop once it has got rid of 
the body!

Should I submit this as a bug?