Restore minor deletion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70892 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ADT/SmallSet.h

@@ -76,6 +76,12 @@ public:
     return true;
   }
 
+  template <typename IterT>
+  void insert(IterT I, IterT E) {
+    for (; I != E; ++I)
+      insert(*I);
+  }
+  
   bool erase(const T &V) {
     if (!isSmall())
       return Set.erase(V);

include/llvm/CodeGen/MachineModuleInfo.h

@@ -170,11 +170,6 @@ public:
     return ID;
   }
   
-  /// RecordSourceLine - Records location information and associates it with a
-  /// label.  Returns a unique label ID used to generate a label and 
-  /// provide correspondence to the source line list.
-  unsigned RecordSourceLine(unsigned Line, unsigned Column, unsigned Source);
-  
   /// InvalidateLabel - Inhibit use of the specified label # from
   /// MachineModuleInfo, for example because the code was deleted.
   void InvalidateLabel(unsigned LabelID) {

include/llvm/Transforms/Utils/BasicBlockUtils.h

@@ -89,7 +89,14 @@ Value *FindAvailableLoadedValue(Value *Ptr, BasicBlock *ScanBB,
                                 BasicBlock::iterator &ScanFrom,
                                 unsigned MaxInstsToScan = 6,
                                 AliasAnalysis *AA = 0);
-    
+
+/// FindFunctionBackedges - Analyze the specified function to find all of the
+/// loop backedges in the function and return them.  This is a relatively cheap
+/// (compared to computing dominators and loop info) analysis.
+///
+/// The output is added to Result, as pairs of <from,to> edge info.
+void FindFunctionBackedges(const Function &F,
+      SmallVectorImpl<std::pair<const BasicBlock*,const BasicBlock*> > &Result);
   
 
 // RemoveSuccessor - Change the specified terminator instruction such that its