[llvm] [Passes] Run SimpleLoopUnswitch after introducing invariant branches. (PR #81271)

[Alina Sbirlea via llvm-commits]

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@@ -981,14 +984,15 @@ void IVVisitor::anchor() { }
 
 /// Simplify instructions that use this induction variable
 /// by using ScalarEvolution to analyze the IV's recurrence.
-bool simplifyUsersOfIV(PHINode *CurrIV, ScalarEvolution *SE, DominatorTree *DT,
-                       LoopInfo *LI, const TargetTransformInfo *TTI,
-                       SmallVectorImpl<WeakTrackingVH> &Dead,
-                       SCEVExpander &Rewriter, IVVisitor *V) {
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alinas wrote:

Same here, add a comment on what the pair return stands for.

https://github.com/llvm/llvm-project/pull/81271