https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64123
--- Comment #22 from Nathan Sidwell <nathan at acm dot org> --- thanks Honza, that was helpful. I'm an idiot. Your workaround unhiding gcov_var is fine for now, while I figure out if there's a better way. I am puzzled as to why I can't observe this failure in the testcase I've constructed.
