https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64193
--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- AFAICT if there is any speedup with the patch in comment 5, it is negligible on a 2.8Ghz Corei7 and x86_64-apple-darwin14: ~7.1s with/without the patch. Note that the timing in the test is not very precise.
