Optimized Compiler Builds Are Well Worth It For Intel Tiger Lake

While Tiger Lake has AV1 decode now with the Gen12 Xe Graphics, for those making use of the dav1d decoder there was a noticeable speed-up when making use of -march=tigerlake for building it.

Other open-source video encoders were also benefiting nicely from -march=tigerlake for compiling these workloads. The improvements came as a bit of a surprise considering many video encoders already leverage hand-tuned Assembly.