[llvm] [LV] Add support for partial alias masking with tail folding (PR #182457)

[Sander de Smalen via llvm-commits]

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@@ -5093,6 +5093,62 @@ void VPlanTransforms::materializeFactors(VPlan &Plan, VPBasicBlock *VectorPH,
   VFxUF.replaceAllUsesWith(MulByUF);
 }
 
+VPValue *
+VPlanTransforms::materializeAliasMask(VPlan &Plan, VPBasicBlock *AliasCheck,
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sdesmalen-arm wrote:

Why does this function live in `VPlanTransforms`, as opposed to e.g. `VPlanConstruction.cpp` or `LoopVectorizationPlanner.cpp`?

https://github.com/llvm/llvm-project/pull/182457