[Bug c/66673] Wsequence-point warning missing when swapping variables via chained xor

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66673

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic
            Version|4.4.6                       |6.0
            Summary|warning missing for         |Wsequence-point warning
                   |undefined behavior when     |missing when swapping
                   |swapping variables via      |variables via chained xor
                   |chained xor                 |
           Severity|major                       |enhancement

--- Comment #8 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
It seems a missing feature to me. There are several open PRs about
Wsequence-point but this one does not seem to be one of them.