https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70178
--- Comment #2 from Zack Weinberg <zackw at panix dot com> --- That was my working hypothesis as well. Isn't there some way we can annotate s->data to reassure the compiler that *this* char* doesn't alias? I don't know enough about the guts of std::string to know whether 'restrict' is accurate, but it certainly shouldn't be pointing to anything but string contents.
