https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19808

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |NEW
         Resolution|DUPLICATE                   |---

--- Comment #32 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #31)
> This is really a dup of PR2972.
> 
> *** This bug has been marked as a duplicate of bug 2972 ***

No, it is  not. The difference is explained by Jason in comment #22 and the
existing bug by me in comment #23.

There is not only a conceptual difference but a difference in difficulty. This
bug can be solved entirely by the C++ FE (and this is what the patch in comment
#29 does) while PR2972 needs middle-end support.

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