[Bug c++/91415] Invalid warning for C++17 sequencing of shift operator E1<<E2.

["pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91415

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=83028

--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Nicolai Josuttis from comment #13)
> Oh, sorry, your are right, the example indeed works.
> BUT: I used in fact a slightly different example
> (sorry, didn't expect that there is a difference):
> 
> int main() {
>   int i = 0;
>   int j = i++ << i++;       // OK, NO WARNING
>   std::cout << i++ << i++;  // still WARNING
> }
> 
> see https://wandbox.org/permlink/ioZnOv3oAp5F0BsQ
> 
> According to my understanding the warning should especially
> also not come when we pass i++ twice to std::cout
> (to sequence output was a key goal of this fix in C++17).
> 
> But may be I am missing something.

That would be PR 83028 .