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49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
//===- SparcV8InstrInfo.h - SparcV8 Instruction Information -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the SparcV8 implementation of the TargetInstrInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SPARCV8INSTRUCTIONINFO_H
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#define SPARCV8INSTRUCTIONINFO_H
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#include "llvm/Target/TargetInstrInfo.h"
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#include "SparcV8RegisterInfo.h"
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namespace llvm {
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class SparcV8InstrInfo : public TargetInstrInfo {
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const SparcV8RegisterInfo RI;
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public:
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SparcV8InstrInfo();
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/// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
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/// such, whenever a client has an instance of instruction info, it should
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/// always be able to get register info as well (through this method).
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///
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virtual const MRegisterInfo &getRegisterInfo() const { return RI; }
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/// createNOPinstr - returns the target's implementation of NOP, which is
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/// usually a pseudo-instruction, implemented by a degenerate version of
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/// another instruction.
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///
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MachineInstr* createNOPinstr() const;
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/// isNOPinstr - not having a special NOP opcode, we need to know if a given
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/// instruction is interpreted as an `official' NOP instr, i.e., there may be
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/// more than one way to `do nothing' but only one canonical way to slack off.
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///
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bool isNOPinstr(const MachineInstr &MI) const;
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};
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}
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#endif
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