[llvm] [LLVM][SelectionDAG] Don't legalise splat constants until required. (PR #143571)

[Craig Topper via llvm-commits]

topperc wrote:

@paulwalker-arm I think I'm missing the bigger picture of why the ConstantInt change affects SelectionDAG. Is SelectionDAG going to use ConstantSDNode instead of SPLAT_VECTOR for constant splats?

https://github.com/llvm/llvm-project/pull/143571