https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63534
--- Comment #70 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- (In reply to Dominique d'Humieres from comment #69) Apart from comment #69 (which I am not sure is related to the issue), the rest of the PR seems now fixed by the various commits here, as well as the fix for PR63845. I am thus closing here. Other issues should be reported separately, because this has become such a monster thread.