I haven't had issues, but I'm only using -O2. I also have to do "-march=native -mno-avx -mno-aes" because I'm on a Xen instance that doesn't allow the avx/aes

I haven't had issues, but I'm only using -O2. I also have to do "-march=native -mno-avx -mno-aes" because I'm on a Xen instance that doesn't allow the avx/aes instructions.