https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87359
--- Comment #39 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- The culprit for the second problem is r264358, exposed only once the original problem is fixed, i.e. with the patch of r264485 (tested on both reproducers). It would have been better to open a new PR for it, but it's probably too late!-(
