https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105480
--- Comment #10 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- For scalar isnan see bug 66462. (The claim in bug 66462 comment 19 that there was ever a working version of that patch ready to go in is incorrect: November 2016 is older than June 2017.)
