Add MVE VMUL intrinsics.
I think its worth adding some extra tests types. The way I like to think of it is that if someone went and completely changed the arm_mve.td in the future, there should be enough tests for them to tell they didn't miss anything. Even if they are not someone from Arm, that knows a lot about MVE intrinsics.
This I like
Yes, I agree that the new names of these instruction ids are better. But if you're changing these names as a side effect of this patch, please add text to the commit message calling out the change.