https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55978
--- Comment #28 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- This PR is probably related to/duplicate of pr54618. These two PRs are so mangled that it very difficult to tell what has been fixed and what remains to be fixed. IMO it would be better to open a new PR for what is still broken an to close these two as FIXED.