Separate SplitAnalysis::getSplitLoops().

This method returns the set of loops with uses that are candidates for
splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121870 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SplitKit.h b/lib/CodeGen/SplitKit.h
index b1d5a47..f290eb6 100644
--- a/lib/CodeGen/SplitKit.h
+++ b/lib/CodeGen/SplitKit.h
@@ -133,6 +133,10 @@
   /// these edges, but they do require special treatment.
   void getCriticalPreds(const LoopBlocks &Blocks, BlockPtrSet &CriticalPreds);
 
+  /// getSplitLoops - Get the set of loops that have curli uses and would be
+  /// profitable to split.
+  void getSplitLoops(LoopPtrSet&);
+
   /// getBestSplitLoop - Return the loop where curli may best be split to a
   /// separate register, or NULL.
   const MachineLoop *getBestSplitLoop();