https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66297
--- Comment #3 from mati865 at gmail dot com --- (In reply to mati865 from comment #2) > (In reply to mati865 from comment #1) > > Still affects GCC 6.2. > > Seems resolved with current trunk (GCC 7.0.0). EDIT: It's only partially fixed, example from comment 0 still fails.