Add comment, clean up code. No functional change.

[oota-llvm.git] / lib / Target / Mips / MipsRegisterInfo.h

diff --git a/lib/Target/Mips/MipsRegisterInfo.h b/lib/Target/Mips/MipsRegisterInfo.h
index 122f786656b471fd8d820d81a59a8bcf517a43a2..9a05e94be99132a5fb05e4b5ee1ed5c8e1685618 100644 (file)
--- a/lib/Target/Mips/MipsRegisterInfo.h
+++ b/lib/Target/Mips/MipsRegisterInfo.h
@@ -1,4 +1,4 @@
-//===- MipsRegisterInfo.h - Mips Register Information Impl ------*- C++ -*-===//
+//===-- MipsRegisterInfo.h - Mips Register Information Impl -----*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -16,17 +16,21 @@
 
 #include "Mips.h"
 #include "llvm/Target/TargetRegisterInfo.h"
-#include "MipsGenRegisterInfo.h.inc"
+
+#define GET_REGINFO_HEADER
+#include "MipsGenRegisterInfo.inc"
 
 namespace llvm {
 class MipsSubtarget;
 class TargetInstrInfo;
 class Type;
 
-struct MipsRegisterInfo : public MipsGenRegisterInfo {
+class MipsRegisterInfo : public MipsGenRegisterInfo {
+protected:
   const MipsSubtarget &Subtarget;
   const TargetInstrInfo &TII;
-  
+
+public:
   MipsRegisterInfo(const MipsSubtarget &Subtarget, const TargetInstrInfo &tii);
 
   /// getRegisterNumbering - Given the enum value for some register, e.g.
@@ -40,38 +44,32 @@ struct MipsRegisterInfo : public MipsGenRegisterInfo {
   void adjustMipsStackFrame(MachineFunction &MF) const;
 
   /// Code Generation virtual methods...
-  const unsigned *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
-
-  const TargetRegisterClass* const*
-  getCalleeSavedRegClasses(const MachineFunction* MF = 0) const;
+  const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
+  const uint32_t *getCallPreservedMask(CallingConv::ID) const;
 
   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
-  unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
-                               int SPAdj, int *Value = NULL,
-                               RegScavenger *RS = NULL) const;
+  void eliminateFrameIndex(MachineBasicBlock::iterator II,
+                           int SPAdj, RegScavenger *RS = NULL) const;
 
   void processFunctionBeforeFrameFinalized(MachineFunction &MF) 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;
 
-  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+private:
+  virtual void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo,
+                           int FrameIndex, uint64_t StackSize,
+                           int64_t SPOffset) const = 0;
 };
 
 } // end namespace llvm