https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77546
--- Comment #5 from PeteVine <tulipawn at gmail dot com> --- ARMv7 for example is not affected, on the contrary, GCC6 posts a very small improvement (29.2 vs 29.0). Back on aarch64, however, GCC7 is able to get some of the lost performance back @ 37 avg. A clue?
