Restore dump() methods to Loop and MachineLoop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92772 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Analysis/LoopInfo.h

@@ -588,6 +588,8 @@ public:
   /// block, return that block. Otherwise return null.
   BasicBlock *getUniqueExitBlock() const;
 
+  void dump() const;
+  
 private:
   friend class LoopInfoBase<BasicBlock, Loop>;
   explicit Loop(BasicBlock *BB) : LoopBase<BasicBlock, Loop>(BB) {}

include/llvm/CodeGen/MachineLoopInfo.h

@@ -49,6 +49,8 @@ public:
   /// contiguous with the part the contains the header.
   MachineBasicBlock *getBottomBlock();
 
+  void dump() const;
+
 private:
   friend class LoopInfoBase<MachineBasicBlock, MachineLoop>;
   explicit MachineLoop(MachineBasicBlock *MBB)

lib/Analysis/LoopInfo.cpp

@@ -21,6 +21,7 @@
 #include "llvm/Assembly/Writer.h"
 #include "llvm/Support/CFG.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
 #include "llvm/ADT/DepthFirstIterator.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include <algorithm>
@@ -385,6 +386,10 @@ BasicBlock *Loop::getUniqueExitBlock() const {
   return 0;
 }
 
+void Loop::dump() const {
+  print(dbgs());
+}
+
 //===----------------------------------------------------------------------===//
 // LoopInfo implementation
 //

lib/CodeGen/MachineLoopInfo.cpp

@@ -17,6 +17,7 @@
 #include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/Passes.h"
+#include "llvm/Support/Debug.h"
 using namespace llvm;
 
 namespace llvm {
@@ -73,3 +74,7 @@ MachineBasicBlock *MachineLoop::getBottomBlock() {
   }
   return BotMBB;
 }
+
+void MachineLoop::dump() const {
+  print(dbgs());
+}