http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52450
--- Comment #8 from rguenther at suse dot de <rguenther at suse dot de> 2012-03-12 09:58:02 UTC --- On Mon, 12 Mar 2012, rguenther at suse dot de wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52450 > > --- Comment #7 from rguenther at suse dot de <rguenther at suse dot de> > 2012-03-12 09:55:54 UTC --- > On Sun, 11 Mar 2012, danglin at gcc dot gnu.org wrote: > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52450 > > > > John David Anglin <danglin at gcc dot gnu.org> changed: > > > > What |Removed |Added > > ---------------------------------------------------------------------------- > > Component|target |middle-end > > > > --- Comment #6 from John David Anglin <danglin at gcc dot gnu.org> > > 2012-03-11 23:59:26 UTC --- > > Test is xfailed on trunk. > > > > Please note that this is an optimization bug as the test > > doesn't fail at -O0. > > > > While struct T is packed, I don't believe that this implies > > that its address is misaligned. i is the first field in > > T. Thus, its address shouldn't be misaligned on a big > > endian target. > > Is that so? If so then the testcase is invalid. Btw, alignof () of a packed struct type is 1 (it could be nested in another packed struct). Richard.