@nogc cpuid
Merge pull request #793 from WalterBright/annotate-cpuid

@nogc cpuid
core.sys.posix: annotate
Merge pull request #794 from WalterBright/posix-annotate

core.sys.posix: annotate
Only define vector aliases if they actually compile
Merge pull request #795 from yebblies/issue8425

Only define vector aliases if they actually compile