[llvm] [SLP]Initial support for (masked)loads + compress and (masked)interleaved (PR #132099)

[Alexander Kornienko via llvm-commits]

alexfh wrote:

There's another problem after this commit, which isn't fixed by 076318bd78f5ed338350841075316a75d89ecd9b. See https://github.com/llvm/llvm-project/pull/134578#issuecomment-2798417089

https://github.com/llvm/llvm-project/pull/132099