I have question regarding native CPU support.
I use Gentoo Linux on my server with Xeon (Intel Xeon W 2000 / D-2100 (Skylake H0/M0/U0) {Skylake}, 14nm) and I usually use GCC flag -march=native that uses all features of CPU that it builds on. If I don’t use that flag GCC by default uses only x86_64 without all the features that CPU provides and it loses a lot of performance.
My question is when Crystal compiles how I can tweak it to use all potential of those cores?
Should I dive deep into LLVM library to check the parameters?