mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
44eb65cf58
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54802 91177308-0d34-0410-b5e6-96231b3b80d8
79 lines
3.2 KiB
C++
79 lines
3.2 KiB
C++
//===- PIC16InstrInfo.h - PIC16 Instruction Information----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the niversity of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the PIC16 implementation of the TargetInstrInfo class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef PIC16INSTRUCTIONINFO_H
|
|
#define PIC16INSTRUCTIONINFO_H
|
|
|
|
#include "PIC16.h"
|
|
#include "PIC16RegisterInfo.h"
|
|
#include "llvm/Target/TargetInstrInfo.h"
|
|
|
|
namespace llvm {
|
|
|
|
|
|
class PIC16InstrInfo : public TargetInstrInfoImpl
|
|
{
|
|
PIC16TargetMachine &TM;
|
|
const PIC16RegisterInfo RI;
|
|
public:
|
|
explicit PIC16InstrInfo(PIC16TargetMachine &TM);
|
|
|
|
/// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
|
|
/// such, whenever a client has an instance of instruction info, it should
|
|
/// always be able to get register info as well (through this method).
|
|
///
|
|
virtual const PIC16RegisterInfo &getRegisterInfo() const { return RI; }
|
|
|
|
|
|
/// isLoadFromStackSlot - If the specified machine instruction is a direct
|
|
/// load from a stack slot, return the virtual or physical register number of
|
|
/// the destination along with the FrameIndex of the loaded stack slot. If
|
|
/// not, return 0. This predicate must return 0 if the instruction has
|
|
/// any side effects other than loading from the stack slot.
|
|
virtual unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
|
|
|
|
/// isStoreToStackSlot - If the specified machine instruction is a direct
|
|
/// store to a stack slot, return the virtual or physical register number of
|
|
/// the source reg along with the FrameIndex of the loaded stack slot. If
|
|
/// not, return 0. This predicate must return 0 if the instruction has
|
|
/// any side effects other than storing to the stack slot.
|
|
virtual unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
|
|
|
|
/// Used for spilling a register
|
|
void storeRegToStackSlot(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
unsigned SrcReg, bool isKill, int FrameIndex,
|
|
const TargetRegisterClass *RC) const;
|
|
|
|
|
|
void loadRegFromStackSlot(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
unsigned DestReg, int FrameIndex,
|
|
const TargetRegisterClass *RC) const;
|
|
|
|
/// InsertBranch - Insert a branch into the end of the specified
|
|
/// MachineBasicBlock. This operands to this method are the same as those
|
|
/// returned by AnalyzeBranch. This is invoked in cases where AnalyzeBranch
|
|
/// returns success and when an unconditional branch (TBB is non-null, FBB is
|
|
/// null, Cond is empty) needs to be inserted. It returns the number of
|
|
/// instructions inserted.
|
|
virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
|
|
MachineBasicBlock *FBB,
|
|
const SmallVectorImpl<MachineOperand> &Cond) const ;
|
|
|
|
};
|
|
|
|
} // namespace llvm
|
|
|
|
#endif
|