[llvm] [LV] Support binary and unary operations with EVL-vectorization (PR #93854)

[Florian Hahn via llvm-commits]

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@@ -35,6 +36,11 @@ class VPlanVerifier {
   // VPHeaderPHIRecipes.
   bool verifyPhiRecipes(const VPBasicBlock *VPBB);
 
+  // Verify that \p EVL is used correctly. The user must be  either in EVL-based
+  // recipes as a last operand or VPInstruction::Add which is incoming value
+  // into EVL's recipe.
+  bool verifyEVLRecipe(const VPInstruction &EVL) const;
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fhahn wrote:

Could this be split off, and submitted first?

https://github.com/llvm/llvm-project/pull/93854