[llvm] [ValueTypes] Add v1 to v12 vector type support for i1, i8, i16, f16, … (PR #96481)

[Craig Topper via llvm-commits]

topperc wrote:

Isn't the non-power of 2 support in SLP limited to types 1 less than a power of 2? i.e. 3, 7, 15?

https://github.com/llvm/llvm-project/pull/96481