[llvm] [SCEV] Add function to compute minium of countable exits. (PR #93498)

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git-clang-format --diff 0f08ef1b66cb3de81a10a237624e3e173b0c7c68 c354c6bb33a27c2388cf0b6f6a795ee841f58eca -- llvm/include/llvm/Analysis/ScalarEvolution.h llvm/lib/Analysis/ScalarEvolution.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/include/llvm/Analysis/ScalarEvolution.h b/llvm/include/llvm/Analysis/ScalarEvolution.h
index 4d75b9f616..bca68328c7 100644
--- a/llvm/include/llvm/Analysis/ScalarEvolution.h
+++ b/llvm/include/llvm/Analysis/ScalarEvolution.h
@@ -912,12 +912,14 @@ public:
     return getBackedgeTakenCount(L, SymbolicMaximum);
   }
 
-  /// When successful, return the minimum of the exit counts for all countable exits, ignoring uncountable exits. This is an upper bound on the  number of iterations of the loop.
+  /// When successful, return the minimum of the exit counts for all countable
+  /// exits, ignoring uncountable exits. This is an upper bound on the  number
+  /// of iterations of the loop.
   const SCEV *getBackedgeTakenCountForCountableExits(const Loop *L);
 
-  /// Similar to getBackedgeTakenCountForCountableExits, except it will add a set of
-  /// SCEV predicates to Predicates that are required to be true in order for
-  /// the answer to be correct. Predicates can be checked with run-time
+  /// Similar to getBackedgeTakenCountForCountableExits, except it will add a
+  /// set of SCEV predicates to Predicates that are required to be true in order
+  /// for the answer to be correct. Predicates can be checked with run-time
   /// checks and can be used to perform loop versioning.
   const SCEV *getPredicatedBackedgeTakenCountForCountableExits(
       const Loop *L, SmallVector<const SCEVPredicate *, 4> &Predicates);
@@ -2327,7 +2329,8 @@ public:
   /// Get the (predicated) backedge count for the analyzed loop.
   const SCEV *getBackedgeTakenCount();
 
-  // Get the (predicated) minimum of the exit counts for all countable exits, ignoring uncountable exits.
+  // Get the (predicated) minimum of the exit counts for all countable exits,
+  // ignoring uncountable exits.
   const SCEV *getBackedgeTakenCountForCountableExits();
 
   /// Adds a new predicate.

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https://github.com/llvm/llvm-project/pull/93498