X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FMips%2FMipsRegisterInfo.h;h=20ba41d7fd79657c44b7e52686e9e5df25637fb9;hb=9a308df027b60057d0fe3ba7a3ee9648f6677879;hp=75ae4233919e0b9c08789ba352c5df6d1efa25a0;hpb=58184e6878fdab651bc7c9a59dab2687ca82ede2;p=oota-llvm.git

diff --git a/lib/Target/Mips/MipsRegisterInfo.h b/lib/Target/Mips/MipsRegisterInfo.h
index 75ae4233919..20ba41d7fd7 100644
--- a/lib/Target/Mips/MipsRegisterInfo.h
+++ b/lib/Target/Mips/MipsRegisterInfo.h
@@ -1,103 +1,81 @@
-//===- MipsRegisterInfo.h - Mips Register Information Impl ------*- C++ -*-===//
+//===-- MipsRegisterInfo.h - Mips Register Information Impl -----*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Bruno Cardoso Lopes and is distributed under the 
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
-// This file contains the Mips implementation of the MRegisterInfo class.
+// This file contains the Mips implementation of the TargetRegisterInfo class.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef MIPSREGISTERINFO_H
 #define MIPSREGISTERINFO_H
 
-#include "llvm/Target/MRegisterInfo.h"
-#include "MipsGenRegisterInfo.h.inc"
+#include "Mips.h"
+#include "llvm/Target/TargetRegisterInfo.h"
 
-namespace llvm {
+#define GET_REGINFO_HEADER
+#include "MipsGenRegisterInfo.inc"
 
-class TargetInstrInfo;
+namespace llvm {
+class MipsSubtarget;
 class Type;
 
-struct MipsRegisterInfo : public MipsGenRegisterInfo {
-  const TargetInstrInfo &TII;
-  
-  MipsRegisterInfo(const TargetInstrInfo &tii);
+class MipsRegisterInfo : public MipsGenRegisterInfo {
+protected:
+  const MipsSubtarget &Subtarget;
+
+public:
+  MipsRegisterInfo(const MipsSubtarget &Subtarget);
 
   /// getRegisterNumbering - Given the enum value for some register, e.g.
   /// Mips::RA, return the number that it corresponds to (e.g. 31).
   static unsigned getRegisterNumbering(unsigned RegEnum);
 
-  /// Code Generation virtual methods...
-  void storeRegToStackSlot(MachineBasicBlock &MBB,
-                           MachineBasicBlock::iterator MBBI,
-                           unsigned SrcReg, int FrameIndex,
-                           const TargetRegisterClass *RC) const;
-
-  void storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
-                      SmallVectorImpl<MachineOperand> Addr,
-                      const TargetRegisterClass *RC,
-                      SmallVectorImpl<MachineInstr*> &NewMIs) const;
-
-  void loadRegFromStackSlot(MachineBasicBlock &MBB,
-              MachineBasicBlock::iterator MBBI,
-              unsigned DestReg, int FrameIndex,
-              const TargetRegisterClass *RC) const;
-
-  void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
-                       SmallVectorImpl<MachineOperand> Addr,
-                       const TargetRegisterClass *RC,
-                       SmallVectorImpl<MachineInstr*> &NewMIs) const;
+  /// Get PIC indirect call register
+  static unsigned getPICCallReg();
 
-  void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
-                     unsigned DestReg, const MachineInstr *Orig) const;
+  /// Adjust the Mips stack frame.
+  void adjustMipsStackFrame(MachineFunction &MF) const;
 
-  MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
-                                  int FrameIndex) const;
-
-  MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
-                                  MachineInstr* LoadMI) const {
-    return 0;
-  }
-
-  void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
-          unsigned DestReg, unsigned SrcReg,
-          const TargetRegisterClass *DestRC,
-          const TargetRegisterClass *SrcRC) const;
-  
-
-  const unsigned *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
-
-  const TargetRegisterClass* const*
-  getCalleeSavedRegClasses(const MachineFunction* MF = 0) const;
+  /// Code Generation virtual methods...
+  unsigned getRegPressureLimit(const TargetRegisterClass *RC,
+                               MachineFunction &MF) const;
+  const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
+  const uint32_t *getCallPreservedMask(CallingConv::ID) const;
+  static const uint32_t *getMips16RetHelperMask();
 
   BitVector getReservedRegs(const MachineFunction &MF) const;
 
-  bool hasFP(const MachineFunction &MF) const;
+  virtual bool requiresRegisterScavenging(const MachineFunction &MF) const;
 
-  void eliminateCallFramePseudoInstr(MachineFunction &MF,
-                                     MachineBasicBlock &MBB,
-                                     MachineBasicBlock::iterator I) const;
+  virtual bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const;
 
   /// Stack Frame Processing Methods
   void eliminateFrameIndex(MachineBasicBlock::iterator II,
-                           int SPAdj, RegScavenger *RS = NULL) const;
+                           int SPAdj, unsigned FIOperandNum,
+                           RegScavenger *RS = NULL) const;
 
-  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
+  void processFunctionBeforeFrameFinalized(MachineFunction &MF,
+                                       RegScavenger *RS = NULL) const;
 
-  void emitPrologue(MachineFunction &MF) const;
-  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
-  
   /// Debug information queries.
-  unsigned getRARegister() const;
-  unsigned getFrameRegister(MachineFunction &MF) const;
+  unsigned getFrameRegister(const MachineFunction &MF) const;
 
   /// Exception handling queries.
   unsigned getEHExceptionRegister() const;
   unsigned getEHHandlerRegister() const;
+
+  /// \brief Return GPR register class.
+  virtual const TargetRegisterClass *intRegClass(unsigned Size) const = 0;
+
+private:
+  virtual void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo,
+                           int FrameIndex, uint64_t StackSize,
+                           int64_t SPOffset) const = 0;
 };
 
 } // end namespace llvm