[Bug c++/114309] Undesirable warning with [[unlikely]]

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114309

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The warning was added when this attribute was added in r9-4186-g2674fa47de9ecf
and even added a testcase for this warning g++.dg/cpp2a/attr-likely4.C .