[llvm] [lsr][term-fold] Restrict expansion budget for profiled loops (PR #74747)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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``````````bash
git-clang-format --diff 0e6685ab1a8313cd1dc7eb3c99ff642e6c492aa2 0aad007ef1372d7b7bd74aae10261b96bfae07e0 -- llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 2bcf6a2d65..a4811fd46e 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -6785,9 +6785,9 @@ canFoldTermCondOfLoop(Loop *L, ScalarEvolution &SE, DominatorTree &DT,
   // the allowed cost with the loops trip count as best we can.
   const unsigned ExpansionBudget = [&]() {
     if (std::optional<unsigned> SmallTC = getLoopEstimatedTripCount(L))
-      return std::min(2*SCEVCheapExpansionBudget, *SmallTC);
+      return std::min(2 * SCEVCheapExpansionBudget, *SmallTC);
     // Unknown trip count, assume long running by default.
-    return 2*SCEVCheapExpansionBudget;
+    return 2 * SCEVCheapExpansionBudget;
   }();
 
   const SCEV *BECount = SE.getBackedgeTakenCount(L);
@@ -6838,8 +6838,8 @@ canFoldTermCondOfLoop(Loop *L, ScalarEvolution &SE, DominatorTree &DT,
       continue;
     }
 
-    if (Expander.isHighCostExpansion(TermValueSLocal, L, ExpansionBudget,
-                                     &TTI, InsertPt)) {
+    if (Expander.isHighCostExpansion(TermValueSLocal, L, ExpansionBudget, &TTI,
+                                     InsertPt)) {
       LLVM_DEBUG(
           dbgs() << "Is too expensive to expand terminating value for phi node"
                  << PN << "\n");

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https://github.com/llvm/llvm-project/pull/74747