Add the minimum implementation of cpuid.h. This works on "modern" intel cpus
and on clang, which seams to handled "=b" correctly even when ebx is the
PIC register.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145149 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed