[llvm] [VPlan] Handle some VPInstructions in may{Read,Write}FromMemory (PR #120058)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

Thanks for moving!

One more question re `llvm/test/Transforms/LoopVectorize/AArch64/force-target-instruction-cost.ll`; the extra instructions still get hoisted out, so won't test the force target instruction cost any longer, with an alternative suggestion

https://github.com/llvm/llvm-project/pull/120058