[llvm] CycleInfo: Fix splitCriticalEdge (PR #68584)

[Nicolai Hähnle via llvm-commits]

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@@ -261,6 +261,7 @@ template <typename ContextT> class GenericCycleInfo {
   const ContextT &getSSAContext() const { return Context; }
 
   CycleT *getCycle(const BlockT *Block) const;
+  CycleT *getCycleContaining(const BlockT *A, const BlockT *B) const;
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nhaehnle wrote:

Please instead make this a member `CycleT *getSmallestCommonCycle(CycleT *A, CycleT *B) const` so that it is more generally useful.

https://github.com/llvm/llvm-project/pull/68584