https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86393
--- Comment #12 from Mikael Slevinsky <mrslevinsky at hotmail dot com> --- It is fixed for all GCC versions I checked: all the up-to-date versions of 4.9, 5, 6, 7, 8, 9 from Homebrew. Also, I recently updated from High Sierra to Mojave, and the new clang is: scima-mh421-20:FastTransforms mikael$ clang --version Apple LLVM version 10.0.1 (clang-1001.0.46.4) Target: x86_64-apple-darwin18.2.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin (In reply to Iain Sandoe from comment #11) > (In reply to Mikael Slevinsky from comment #10) > > I can confirm this is fixed, thank you! > > Great, for which GCC versions is it fixed? > > > P.S. the exact processor type is a Xeon(R) W-2191B CPU @ 2.30GHz. > > thanks