https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116369
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- The difference between the two versions (and even the difference between the refernece and non reference) is the underlying variable for a1234 is in the rodata section for the one with the temporary bounded to the reference. I am not sure this is a libstdc++ issue but maybe a front-end one ...
