https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108342
--- Comment #4 from Rui Oliveira <ruilvo at ua dot pt> --- (In reply to Andrew Pinski from comment #2) > Hmm: diff.cpp03.numerics I saw you moved the bug to libstdc++ but is the problem libstdc++, or should g++ just accept packing when it encounters it?