[llvm] [VPlan] Remove loop region in optimizeForVFAndUF. (PR #108378)

[Florian Hahn via llvm-commits]

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@@ -936,7 +935,6 @@ void VPlan::prepareToExecute(Value *TripCountV, Value *VectorTripCountV,
 
   IRBuilder<> Builder(State.CFG.PrevBB->getTerminator());
   // FIXME: Model VF * UF computation completely in VPlan.
-  assert(VFxUF.getNumUsers() && "VFxUF expected to always have users");
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fhahn wrote:

We may remove the users (the canonical IV increment). Updated to account for that in assertion

https://github.com/llvm/llvm-project/pull/108378