llvm-6502/lib/Target/IA64/IA64RegisterInfo.h
Anton Korobeynikov 2365f51ed0 Long live the exception handling!
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-14 14:06:15 +00:00

82 lines
2.7 KiB
C++

//===- IA64RegisterInfo.h - IA64 Register Information Impl ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Duraid Madina and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the IA64 implementation of the MRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef IA64REGISTERINFO_H
#define IA64REGISTERINFO_H
#include "llvm/Target/MRegisterInfo.h"
#include "IA64GenRegisterInfo.h.inc"
namespace llvm { class llvm::Type; }
namespace llvm {
class TargetInstrInfo;
struct IA64RegisterInfo : public IA64GenRegisterInfo {
const TargetInstrInfo &TII;
IA64RegisterInfo(const TargetInstrInfo &tii);
/// Code Generation virtual methods...
void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned SrcReg, int FrameIndex,
const TargetRegisterClass *RC) const;
void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, int FrameIndex,
const TargetRegisterClass *RC) const;
void copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
unsigned DestReg, const MachineInstr *Orig) const;
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
const TargetRegisterClass* const* getCalleeSavedRegClasses(
const MachineFunction *MF = 0) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
bool hasFP(const MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI) const;
void eliminateFrameIndex(MachineBasicBlock::iterator MI,
int SPAdj, 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;
// Exception handling queries.
unsigned getEHExceptionRegister() const;
unsigned getEHHandlerRegister() const;
};
} // End llvm namespace
#endif