[X86] Add CMOV feature to 'i686' processor, making it a proper alias of pentiumpro which I believe it should be.

This is consistent with current gcc behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317133 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed