1 //===-- MBlazeRegisterInfo.h - MBlaze Register Information Impl -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the MBlaze implementation of the TargetRegisterInfo
13 //===----------------------------------------------------------------------===//
15 #ifndef MBLAZEREGISTERINFO_H
16 #define MBLAZEREGISTERINFO_H
19 #include "llvm/Target/TargetRegisterInfo.h"
21 #define GET_REGINFO_HEADER
22 #include "MBlazeGenRegisterInfo.inc"
25 class MBlazeSubtarget;
26 class TargetInstrInfo;
30 /// SubregIndex - The index of various sized subregister classes. Note that
31 /// these indices must be kept in sync with the class indices in the
32 /// MBlazeRegisterInfo.td file.
34 SUBREG_FPEVEN = 1, SUBREG_FPODD = 2
38 struct MBlazeRegisterInfo : public MBlazeGenRegisterInfo {
39 const MBlazeSubtarget &Subtarget;
41 MBlazeRegisterInfo(const MBlazeSubtarget &Subtarget);
43 /// Get PIC indirect call register
44 static unsigned getPICCallReg();
46 /// Code Generation virtual methods...
47 const uint16_t *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
49 BitVector getReservedRegs(const MachineFunction &MF) const;
51 /// Stack Frame Processing Methods
52 void eliminateFrameIndex(MachineBasicBlock::iterator II,
53 int SPAdj, unsigned FIOperandNum,
54 RegScavenger *RS = NULL) const;
56 void processFunctionBeforeFrameFinalized(MachineFunction &MF,
57 RegScavenger *RS = NULL) const;
59 /// Debug information queries.
60 unsigned getFrameRegister(const MachineFunction &MF) const;
62 /// Exception handling queries.
63 unsigned getEHExceptionRegister() const;
64 unsigned getEHHandlerRegister() const;
67 } // end namespace llvm