Author of [0] here. Sadly, those benchmarks (at the bottom of the thread) were done with a GCC that already included all the GCC 8.1 bells and whistles - resul

Author of [0] here. Sadly, those benchmarks (at the bottom of the thread) were done with a GCC that already included all the GCC 8.1 bells and whistles - results were unchanged under 8.1. So it's still _really_ slow.