llvm-project/llvm/lib/Target/X86/X86InstrInfo.h

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//===- X86InstructionInfo.h - X86 Instruction Information ---------*-C++-*-===//
//
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// This file contains the X86 implementation of the MachineInstrInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef X86INSTRUCTIONINFO_H
#define X86INSTRUCTIONINFO_H
#include "llvm/Target/MachineInstrInfo.h"
#include "X86RegisterInfo.h"
/// X86II - This namespace holds all of the target specific flags that
/// instruction info tracks.
///
namespace X86II {
enum {
Void = 1 << 0, // Set if this instruction produces no value
};
}
class X86InstrInfo : public MachineInstrInfo {
const X86RegisterInfo RI;
public:
X86InstrInfo();
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/// getRegisterInfo - MachineInstrInfo 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 MRegisterInfo &getRegisterInfo() const { return RI; }
/// print - Print out an x86 instruction in GAS syntax
///
virtual void print(const MachineInstr *MI, std::ostream &O) const;
//===--------------------------------------------------------------------===//
//
// These are stubs for pure virtual methods that should be factored out of
// MachineInstrInfo. We never call them, we don't want them, but we need
// stubs so that we can instatiate our class.
//
MachineOpCode getNOPOpCode() const { abort(); }
void CreateCodeToLoadConst(const TargetMachine& target, Function* F,
Value *V, Instruction *I,
std::vector<MachineInstr*>& mvec,
MachineCodeForInstruction& mcfi) const { abort(); }
void CreateCodeToCopyIntToFloat(const TargetMachine& target,
Function* F, Value* val, Instruction* dest,
std::vector<MachineInstr*>& mvec,
MachineCodeForInstruction& mcfi) const {
abort();
}
void CreateCodeToCopyFloatToInt(const TargetMachine& target, Function* F,
Value* val, Instruction* dest,
std::vector<MachineInstr*>& mvec,
MachineCodeForInstruction& mcfi)const {
abort();
}
void CreateCopyInstructionsByType(const TargetMachine& target,
Function* F, Value* src,
Instruction* dest,
std::vector<MachineInstr*>& mvec,
MachineCodeForInstruction& mcfi)const {
abort();
}
void CreateSignExtensionInstructions(const TargetMachine& target,
Function* F, Value* srcVal,
Value* destVal, unsigned numLowBits,
std::vector<MachineInstr*>& mvec,
MachineCodeForInstruction& mcfi) const {
abort();
}
void CreateZeroExtensionInstructions(const TargetMachine& target,
Function* F, Value* srcVal,
Value* destVal, unsigned srcSizeInBits,
std::vector<MachineInstr*>& mvec,
MachineCodeForInstruction& mcfi) const {
abort();
}
};
#endif