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

[via llvm-commits]

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@@ -3623,7 +3629,8 @@ void LoopVectorizationCostModel::collectLoopUniforms(ElementCount VF) {
   TheLoop->getExitingBlocks(Exiting);
   for (BasicBlock *E : Exiting) {
     auto *Cmp = dyn_cast<Instruction>(E->getTerminator()->getOperand(0));
-    if (Cmp && TheLoop->contains(Cmp) && Cmp->hasOneUse())
+    if (Cmp && TheLoop->contains(Cmp) && Cmp->hasOneUse() &&
+        (TheLoop->getLoopLatch() == E || !Legal->hasUncountableEarlyExit()))
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ayalz wrote:

Update above comment?

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