NFC: Update comment for VPVectorPointerRecipe

Author: Mel-Chen

llvm/lib/Transforms/Vectorize/VPlan.h

@@ -1567,6 +1567,8 @@ class VPReverseVectorPointerRecipe : public VPRecipeWithIRFlags,
 };
 
 /// A recipe to compute the pointers for widened memory accesses of IndexTy.
+/// Supports both consecutive and reverse consecutive accesses.
+/// TODO: Support non-unit strided accesses .
 class VPVectorPointerRecipe : public VPRecipeWithIRFlags,
                               public VPUnrollPartAccessor<1> {
   Type *IndexedTy;