[x86] add more movmsk tests; NFC

The existing tests already show a sub-optimal transform,
but this should make it clear that we can't just match
an 'and' op when creating movmsk instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351590 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed