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

[via llvm-commits]

================
@@ -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");
----------------
ayalz wrote:

Is this related?

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