[llvm] [LoopInterchange] Use ArrayRef in more places (NFC) (PR #146077)

[Ryotaro Kasuga via llvm-commits]

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@@ -309,18 +307,18 @@ static void populateWorklist(Loop &L, LoopVector &LoopList) {
   LoopList.push_back(CurrentLoop);
 }
 
-static bool hasSupportedLoopDepth(SmallVectorImpl<Loop *> &LoopList,
+static bool hasSupportedLoopDepth(ArrayRef<Loop *> LoopList,
                                   OptimizationRemarkEmitter &ORE) {
   unsigned LoopNestDepth = LoopList.size();
   if (LoopNestDepth < MinLoopNestDepth || LoopNestDepth > MaxLoopNestDepth) {
     LLVM_DEBUG(dbgs() << "Unsupported depth of loop nest " << LoopNestDepth
                       << ", the supported range is [" << MinLoopNestDepth
                       << ", " << MaxLoopNestDepth << "].\n");
-    Loop **OuterLoop = LoopList.begin();
+    Loop *OuterLoop = LoopList.front();
     ORE.emit([&]() {
       return OptimizationRemarkMissed(DEBUG_TYPE, "UnsupportedLoopNestDepth",
-                                      (*OuterLoop)->getStartLoc(),
-                                      (*OuterLoop)->getHeader())
+                                      OuterLoop->getStartLoc(),
+                                      OuterLoop->getHeader())
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kasuga-fj wrote:

Unrelated changes?

https://github.com/llvm/llvm-project/pull/146077