lib/CodeGen/VirtRegRewriter.h

   1 //===-- llvm/CodeGen/VirtRegRewriter.h - VirtRegRewriter -*- C++ -*--------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef LLVM_CODEGEN_VIRTREGREWRITER_H
  11 #define LLVM_CODEGEN_VIRTREGREWRITER_H
  12
  13 #include "llvm/Target/TargetRegisterInfo.h"
  14 #include "llvm/ADT/BitVector.h"
  15 #include "llvm/ADT/IndexedMap.h"
  16 #include "llvm/ADT/SmallPtrSet.h"
  17 #include "llvm/ADT/SmallVector.h"
  18 #include "llvm/Support/Streams.h"
  19 #include "llvm/Function.h"
  20 #include "llvm/CodeGen/LiveIntervalAnalysis.h"
  21 #include "llvm/CodeGen/MachineFrameInfo.h"
  22 #include "llvm/CodeGen/MachineFunction.h"
  23 #include "llvm/CodeGen/MachineInstrBuilder.h"
  24 #include "llvm/CodeGen/MachineRegisterInfo.h"
  25 #include "llvm/Target/TargetMachine.h"
  26 #include "llvm/Target/TargetInstrInfo.h"
  27 #include "llvm/Support/CommandLine.h"
  28 #include "llvm/Support/Debug.h"
  29 #include "llvm/ADT/BitVector.h"
  30 #include "llvm/ADT/DenseMap.h"
  31 #include "llvm/ADT/SmallSet.h"
  32 #include "VirtRegMap.h"
  33 #include <map>
  34
  35 // TODO:
  36 //       - Finish renaming Spiller -> Rewriter
  37 //         - SimpleSpiller
  38 //         - LocalSpiller
  39
  40 namespace llvm {
  41
  42   /// VirtRegRewriter interface: Implementations of this interface assign
  43   /// spilled virtual registers to stack slots, rewriting the code.
  44   struct VirtRegRewriter {
  45     virtual ~VirtRegRewriter();
  46     virtual bool runOnMachineFunction(MachineFunction &MF, VirtRegMap &VRM,
  47                                       LiveIntervals* LIs) = 0;
  48   };
  49
  50   /// createVirtRegRewriter - Create an return a rewriter object, as specified
  51   /// on the command line.
  52   VirtRegRewriter* createVirtRegRewriter();
  53
  54 }
  55
  56 #endif