https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68154
--- Comment #6 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > I'll change this to gcc_unreachable() before I commit the change. I agree. > The if-branch is my fix for PR 65429, and the else-if-branch > restores the old code. It is what I understood.