http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60341
--- Comment #7 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Wed, Feb 26, 2014 at 08:38:57PM +0000, mikael at gcc dot gnu.org wrote: > > Looks like an unguarded union access. > This is a regression from the time there was now front-end optimization I > guess? Unfortunately, I've deleted versions of gfortran older than 4.6.x. The code fails with all version above 4.6.x. If one adds -fno-frontend-optimize, then the code compiles. So, yes, it is a regression.