Remove unused MachineLoopRanges analysis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168659 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 0 insertions, 115 deletions

diff --git a/include/llvm/CodeGen/MachineLoopRanges.h b/include/llvm/CodeGen/MachineLoopRanges.h
index 6a30e8b53c..e69de29bb2 100644
--- a/include/llvm/CodeGen/MachineLoopRanges.h
+++ b/include/llvm/CodeGen/MachineLoopRanges.h
@@ -1,112 +0,0 @@
-//===- MachineLoopRanges.h - Ranges of machine loops -----------*- c++ -*--===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file provides the interface to the MachineLoopRanges analysis.
-//
-// Provide on-demand information about the ranges of machine instructions
-// covered by a loop.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_MACHINELOOPRANGES_H
-#define LLVM_CODEGEN_MACHINELOOPRANGES_H
-
-#include "llvm/ADT/IntervalMap.h"
-#include "llvm/CodeGen/SlotIndexes.h"
-
-namespace llvm {
-
-class MachineLoop;
-class MachineLoopInfo;
-class raw_ostream;
-
-/// MachineLoopRange - Range information for a single loop.
-class MachineLoopRange {
-  friend class MachineLoopRanges;
-
-public:
-  typedef IntervalMap<SlotIndex, unsigned, 4> Map;
-  typedef Map::Allocator Allocator;
-
-private:
-  /// The mapped loop.
-  const MachineLoop *const Loop;
-
-  /// Map intervals to a bit mask.
-  /// Bit 0 = inside loop block.
-  Map Intervals;
-
-  /// Loop area as measured by SlotIndex::distance.
-  unsigned Area;
-
-  /// Create a MachineLoopRange, only accessible to MachineLoopRanges.
-  MachineLoopRange(const MachineLoop*, Allocator&, SlotIndexes&);
-
-public:
-  /// getLoop - Return the mapped machine loop.
-  const MachineLoop *getLoop() const { return Loop; }
-
-  /// overlaps - Return true if this loop overlaps the given range of machine
-  /// inteructions.
-  bool overlaps(SlotIndex Start, SlotIndex Stop);
-
-  /// getNumber - Return the loop number. This is the same as the number of the
-  /// header block.
-  unsigned getNumber() const;
-
-  /// getArea - Return the loop area. This number is approximately proportional
-  /// to the number of instructions in the loop.
-  unsigned getArea() const { return Area; }
-
-  /// getMap - Allow public read-only access for IntervalMapOverlaps.
-  const Map &getMap() { return Intervals; }
-
-  /// print - Print loop ranges on OS.
-  void print(raw_ostream&) const;
-
-  /// byNumber - Comparator for array_pod_sort that sorts a list of
-  /// MachineLoopRange pointers by number.
-  static int byNumber(const void*, const void*);
-
-  /// byAreaDesc - Comparator for array_pod_sort that sorts a list of
-  /// MachineLoopRange pointers by descending area, then by number.
-  static int byAreaDesc(const void*, const void*);
-};
-
-raw_ostream &operator<<(raw_ostream&, const MachineLoopRange&);
-
-/// MachineLoopRanges - Analysis pass that provides on-demand per-loop range
-/// information.
-class MachineLoopRanges : public MachineFunctionPass {
-  typedef DenseMap<const MachineLoop*, MachineLoopRange*> CacheMap;
-  typedef MachineLoopRange::Allocator MapAllocator;
-
-  MapAllocator Allocator;
-  SlotIndexes *Indexes;
-  CacheMap Cache;
-
-public:
-  static char ID; // Pass identification, replacement for typeid
-
-  MachineLoopRanges() : MachineFunctionPass(ID), Indexes(0) {}
-  ~MachineLoopRanges() { releaseMemory(); }
-
-  /// getLoopRange - Return the range of loop.
-  MachineLoopRange *getLoopRange(const MachineLoop *Loop);
-
-private:
-  virtual bool runOnMachineFunction(MachineFunction&);
-  virtual void releaseMemory();
-  virtual void getAnalysisUsage(AnalysisUsage&) const;
-};
-
-
-} // end namespace llvm
-
-#endif // LLVM_CODEGEN_MACHINELOOPRANGES_H
diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h
index 7bd576494e..44c9676b2c 100644
--- a/include/llvm/CodeGen/Passes.h
+++ b/include/llvm/CodeGen/Passes.h
@@ -288,9 +288,6 @@ namespace llvm {
   /// MachineLoopInfo - This pass is a loop analysis pass.
   extern char &MachineLoopInfoID;
 
-  /// MachineLoopRanges - This pass is an on-demand loop coverage analysis.
-  extern char &MachineLoopRangesID;
-
   /// MachineDominators - This pass is a machine dominators analysis pass.
   extern char &MachineDominatorsID;