llvm-project

29726150 - [X86] fmaddsub-combine.ll - remove 128/256-bit buildvector tests (#207436)

[X86] fmaddsub-combine.ll - remove 128/256-bit buildvector tests (#207436) These are covered by PhaseOrdering/X86/fmaddsub.ll which outputs the vectorized shuffle patterns already tested for in fmaddsub-combine.ll and fmsubadd-combine.ll Minor cleanup for #144489