[llvm] [VPlan] Implement cloning of VPlans. (PR #73158)

[via llvm-commits]

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@@ -2262,9 +2400,22 @@ class VPDerivedIVRecipe : public VPRecipeBase, public VPValue {
         VPValue(this), TruncResultTy(TruncResultTy), Kind(IndDesc.getKind()),
         FPBinOp(dyn_cast_or_null<FPMathOperator>(IndDesc.getInductionBinOp())) {
   }
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ayalz wrote:

nit: should the above constructor call the new one below?

https://github.com/llvm/llvm-project/pull/73158