mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-30 21:29:28 +00:00
them as machine instructions. Directives ".set noat" and ".set at" are now emitted only at the beginning and end of a function except in the case where they are emitted to enclose .cpload with an immediate operand that doesn't fit in 16-bit field or unaligned load/stores. Also, make the following changes: - Remove function isUnalignedLoadStore and use a switch-case statement to determine whether an instruction is an unaligned load or store. - Define helper function CreateMCInst which generates an instance of an MCInst from an opcode and a list of operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153552 91177308-0d34-0410-b5e6-96231b3b80d8
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
//===-- MipsMCInstLower.h - Lower MachineInstr to MCInst -------*- C++ -*--===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef MIPSMCINSTLOWER_H
|
|
#define MIPSMCINSTLOWER_H
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/CodeGen/MachineOperand.h"
|
|
#include "llvm/Support/Compiler.h"
|
|
|
|
namespace llvm {
|
|
class MCContext;
|
|
class MCInst;
|
|
class MCOperand;
|
|
class MachineInstr;
|
|
class MachineFunction;
|
|
class Mangler;
|
|
class MipsAsmPrinter;
|
|
|
|
/// MipsMCInstLower - This class is used to lower an MachineInstr into an
|
|
// MCInst.
|
|
class LLVM_LIBRARY_VISIBILITY MipsMCInstLower {
|
|
typedef MachineOperand::MachineOperandType MachineOperandType;
|
|
MCContext *Ctx;
|
|
Mangler *Mang;
|
|
MipsAsmPrinter &AsmPrinter;
|
|
public:
|
|
MipsMCInstLower(MipsAsmPrinter &asmprinter);
|
|
void Initialize(Mangler *mang, MCContext* C);
|
|
void Lower(const MachineInstr *MI, MCInst &OutMI) const;
|
|
void LowerCPLOAD(SmallVector<MCInst, 4>& MCInsts);
|
|
void LowerCPRESTORE(int64_t Offset, SmallVector<MCInst, 4>& MCInsts);
|
|
void LowerUnalignedLoadStore(const MachineInstr *MI,
|
|
SmallVector<MCInst, 4>& MCInsts);
|
|
void LowerSETGP01(const MachineInstr *MI, SmallVector<MCInst, 4>& MCInsts);
|
|
private:
|
|
MCOperand LowerSymbolOperand(const MachineOperand &MO,
|
|
MachineOperandType MOTy, unsigned Offset) const;
|
|
MCOperand LowerOperand(const MachineOperand& MO, unsigned offset = 0) const;
|
|
};
|
|
}
|
|
|
|
#endif
|