[X86] Split bmi.ll into a bmi test and a bmi2 test.

This moves all the bmi2 specific intrinsics to a separate test file and adds a bmi1 only command line to the existing bmi test.

This will allow us to see the missed opportunity to use bextr to handle 64-bit 'and' with a large mask. This will be improved in an upcoming patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309700 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed