Introduce an enumeration for the x86 CPUs recognized by Clang. I've
tried to give these nice doxyments, but if I've gotten any of my history
wrong, please chime in.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140684 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed