https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89291
--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > Installed gcc-5.5.0 and built the identical WRF version. > > No ICE encountered with 5.5.0. Then if you get an ICE with 7.4, it a regression. Did you try 8.2 or trunk. > Contacted NCAR, the providers of the source code. Did you give them the URL to this PR? It would be nice if they can attach a reproducer.