[llvm] [VPlan] Dispatch to multiple exit blocks via middle blocks. (PR #112138)

[via llvm-commits]

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@@ -902,9 +898,10 @@ VPlanPtr VPlan::createInitialVPlan(Type *InductionTy,
   // 2) If we require a scalar epilogue, there is no conditional branch as
   //    we unconditionally branch to the scalar preheader.  Do nothing.
   // 3) Otherwise, construct a runtime check.
-  BasicBlock *IRExitBlock = TheLoop->getUniqueExitBlock();
+  BasicBlock *IRExitBlock = TheLoop->getUniqueLatchExitBlock();
   auto *VPExitBlock = VPIRBasicBlock::fromBasicBlock(IRExitBlock);
-  // The connection order corresponds to the operands of the conditional branch.
+  // The connection order corresponds to the operands of the conditional
+  // branch.
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ayalz wrote:

nit: unrelated.

https://github.com/llvm/llvm-project/pull/112138