[cxx-abi-dev] Transfer modes for parameters and return values

[Jason Merrill]

On 06/03/2009 04:59 PM, David Vandevoorde wrote:
> In 3.1.1 and 3.1.4, the ABI specifies that "by value" class type
> parameters and class type return values are passed via the address of a
> reference if the class type has
>      (a) a nontrivial destructor, or
>      (b) a nontrivial copy constructor.
>
> Should we now also add to that:
>      (c) a (nontrivial) move constructor
> ?

This change doesn't seem to have been applied to the ABI, though G++ 
implements it.  What are other compilers doing?

Jason