[llvm] [VPlan] Add specialized VPValue subclasses for different types (NFC) (PR #172758)

[Florian Hahn via llvm-commits]

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@@ -7419,9 +7422,10 @@ DenseMap<const SCEV *, Value *> LoopVectorizationPlanner::executePlan(
   // making any changes to the CFG.
   DenseMap<const SCEV *, Value *> ExpandedSCEVs =
       VPlanTransforms::expandSCEVs(BestVPlan, *PSE.getSE());
-  if (!ILV.getTripCount())
-    ILV.setTripCount(BestVPlan.getTripCount()->getLiveInIRValue());
-  else
+  if (!ILV.getTripCount()) {
+    // After expandSCEVs, TripCount is always a VPLiveIn.
+    ILV.setTripCount(cast<VPLiveIn>(BestVPlan.getTripCount())->getValue());
+  } else
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fhahn wrote:

updated thanks

https://github.com/llvm/llvm-project/pull/172758