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f93b863066
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++ -*--===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MIPSMCINSTLOWER_H
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#define MIPSMCINSTLOWER_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/CodeGen/MachineOperand.h"
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#include "llvm/Support/Compiler.h"
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namespace llvm {
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class MCContext;
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class MCInst;
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class MCOperand;
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class MachineInstr;
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class MachineFunction;
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class Mangler;
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class MipsAsmPrinter;
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/// MipsMCInstLower - This class is used to lower an MachineInstr into an
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// MCInst.
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class LLVM_LIBRARY_VISIBILITY MipsMCInstLower {
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typedef MachineOperand::MachineOperandType MachineOperandType;
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MCContext *Ctx;
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Mangler *Mang;
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MipsAsmPrinter &AsmPrinter;
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public:
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MipsMCInstLower(MipsAsmPrinter &asmprinter);
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void Initialize(Mangler *mang, MCContext* C);
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void Lower(const MachineInstr *MI, MCInst &OutMI) const;
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void LowerCPLOAD(SmallVector<MCInst, 4>& MCInsts);
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void LowerCPRESTORE(int64_t Offset, SmallVector<MCInst, 4>& MCInsts);
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void LowerUnalignedLoadStore(const MachineInstr *MI,
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SmallVector<MCInst, 4>& MCInsts);
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void LowerSETGP01(const MachineInstr *MI, SmallVector<MCInst, 4>& MCInsts);
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private:
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MCOperand LowerSymbolOperand(const MachineOperand &MO,
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MachineOperandType MOTy, unsigned Offset) const;
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MCOperand LowerOperand(const MachineOperand& MO, unsigned offset = 0) const;
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};
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}
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#endif
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