https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110842
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Why a regression? libgomp has no support for loop iterators larger than 64-bit unsigned, and I believe in OpenMP it is implementation defined which iterator type is used. C/C++ OpenMP loops with __int128 or unsigned __int128 iterator will not work either (nor with _BitInt(575) or similar).
