how to examine data with compiler optimization option set?

[Robert Dewar]

Michael Snyder wrote:

> I don't think there is any possibility whatsoever of
> somehow generating location codes for the variables in
> the example.

It *is* theoretically possible to generate such information,
but I agree with Michael that in practice it is too far
out of scope to ever happen.
> 
> Those values are simply not kept anywhere.  GCC will replace
> them all with the constant, "3".