[llvm] [VPlan] Add FinalIVValue VPInstruction. (PR #175651)

[Florian Hahn via llvm-commits]

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@@ -881,6 +881,7 @@ static void legalizeAndOptimizeInductions(VPlan &Plan) {
 /// return null.
 static VPWidenInductionRecipe *
 getOptimizableIVOf(VPValue *VPV, PredicatedScalarEvolution &PSE) {
+  match(VPV, m_FinalIVValue(m_VPValue(VPV), m_VPValue()));
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fhahn wrote:

With this moved to the caller, this still does exactly what it says in the documentation. There are still some cases where we need this handling, including early exits. Those should probably also be migrated, although better done separately?

https://github.com/llvm/llvm-project/pull/175651