https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65256
--- Comment #6 from Jeffrey A. Law <law at redhat dot com> --- Damn, while I was away, the one thing that came to mind was to ask you for the preprocessed source so that the issue could be analyzed with a cross compiler. If indeed this is fixed by 65150, then I'll count us as lucky. Obviously if it isn't fixed by the patch for 65150, please attach the preprocessed source for further investigation.