[llvm] [VPlan] Create epilogue minimum iteration check in VPlan. (PR #157545)

[via llvm-commits]

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@@ -703,20 +698,12 @@ class EpilogueVectorizerEpilogueLoop : public InnerLoopAndEpilogueVectorizer {
       : InnerLoopAndEpilogueVectorizer(OrigLoop, PSE, LI, DT, TTI, AC, EPI, CM,
                                        BFI, PSI, Checks, Plan, EPI.EpilogueVF,
                                        EPI.EpilogueVF, EPI.EpilogueUF) {
-    TripCount = EPI.TripCount;
+    TripCount = nullptr;
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ayalz wrote:

```suggestion
```
ILV::TripCount set to null by default?

https://github.com/llvm/llvm-project/pull/157545