[llvm] [VPlan] Model branch cond to enter scalar epilogue in VPlan. (PR #92651)

[Florian Hahn via llvm-commits]

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@@ -795,6 +833,35 @@ VPlanPtr VPlan::createInitialVPlan(const SCEV *TripCount, ScalarEvolution &SE,
   VPBlockUtils::insertBlockAfter(TopRegion, VecPreheader);
   VPBasicBlock *MiddleVPBB = new VPBasicBlock("middle.block");
   VPBlockUtils::insertBlockAfter(MiddleVPBB, TopRegion);
+
+  BasicBlock *EB = TheLoop->getUniqueExitBlock();
+  if (RequiresScalarEpilogueCheck) {
+    auto *EBWrapper = new VPIRBasicBlock(EB);
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fhahn wrote:

Updated, thanks!

https://github.com/llvm/llvm-project/pull/92651