llvm-project

25c5bad2 - [RISCV] Check the legality of source vector types in matchSplatAsGather (#133028)

[RISCV] Check the legality of source vector types in matchSplatAsGather (#133028) When we're trying to lower `extractelement + splat` with vrgather.vi/.vx, we should also check the legality of source vector type from `extractelement`, as the entire transformation assumes legal types. Fixes #133020