[llvm] [LoopVectorizer] Add support for partial reductions (PR #92418)

[Florian Hahn via llvm-commits]

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@@ -784,6 +784,8 @@ class VPRecipeBase : public ilist_node_with_parent<VPRecipeBase, VPBasicBlock>,
   /// \returns an iterator pointing to the element after the erased one
   iplist<VPRecipeBase>::iterator eraseFromParent();
 
+  virtual void postInsertionOp() {}
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fhahn wrote:

What is this used for, needs doc-comment

https://github.com/llvm/llvm-project/pull/92418