MCInstrAnalysis.h Source File (original) (raw)

14#ifndef LLVM_MC_MCINSTRANALYSIS_H

15#define LLVM_MC_MCINSTRANALYSIS_H

23#include

24#include

26namespace llvm {

32protected:

37public:

61 return Info->get(Inst.getOpcode()).isConditionalBranch();

62 }

65 return Info->get(Inst.getOpcode()).isUnconditionalBranch();

66 }

92 return true;

94 if (!PC)

95 return false;

96 return Info->get(Inst.getOpcode()).hasDefOfPhysReg(Inst, PC, MCRI);

97 }

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122 APInt &Writes) const;

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143 unsigned CPUID) const {

144 return false;

145 }

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168 unsigned CPUID) const {

170 }

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179 unsigned CPUID) const {

180 return false;

181 }

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185 virtual bool

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191 virtual std::optional<uint64_t>

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197 virtual std::optional<uint64_t>

198 getMemoryOperandRelocationOffset(const MCInst &Inst, uint64_t Size) const;

199

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201 virtual std::vector<std::pair<uint64_t, uint64_t>>

206};

207

208}

209

210#endif

unsigned const MachineRegisterInfo * MRI

static bool isBranch(unsigned Opcode)

Class for arbitrary precision integers.

ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...

Instances of this class represent a single low-level machine instruction.

unsigned getOpcode() const

virtual std::vector< std::pair< uint64_t, uint64_t > > findPltEntries(uint64_t PltSectionVA, ArrayRef< uint8_t > PltContents, const MCSubtargetInfo &STI) const

Returns (PLT virtual address, GOT virtual address) pairs for PLT entries.

Definition MCInstrAnalysis.h:202

virtual bool isCall(const MCInst &Inst) const

Definition MCInstrAnalysis.h:72

virtual bool isBranch(const MCInst &Inst) const

Definition MCInstrAnalysis.h:56

virtual bool isOptimizableRegisterMove(const MCInst &MI, unsigned CPUID) const

Returns true if MI is a candidate for move elimination.

Definition MCInstrAnalysis.h:178

virtual bool isDependencyBreaking(const MCInst &MI, APInt &Mask, unsigned CPUID) const

Returns true if MI is a dependency breaking instruction for the subtarget associated with CPUID .

Definition MCInstrAnalysis.h:167

virtual bool isUnconditionalBranch(const MCInst &Inst) const

Definition MCInstrAnalysis.h:64

virtual bool isZeroIdiom(const MCInst &MI, APInt &Mask, unsigned CPUID) const

Returns true if MI is a dependency breaking zero-idiom for the given subtarget.

Definition MCInstrAnalysis.h:142

virtual bool isTerminator(const MCInst &Inst) const

Definition MCInstrAnalysis.h:80

virtual bool isBarrier(const MCInst &Inst) const

Definition MCInstrAnalysis.h:84

virtual void resetState()

Clear the internal state. See updateState for more information.

Definition MCInstrAnalysis.h:42

virtual bool isConditionalBranch(const MCInst &Inst) const

Definition MCInstrAnalysis.h:60

friend class Target

Definition MCInstrAnalysis.h:33

virtual bool mayAffectControlFlow(const MCInst &Inst, const MCRegisterInfo &MCRI) const

Definition MCInstrAnalysis.h:88

virtual bool isReturn(const MCInst &Inst) const

Definition MCInstrAnalysis.h:76

virtual void updateState(const MCInst &Inst, uint64_t Addr)

Update internal state with Inst at Addr.

Definition MCInstrAnalysis.h:54

const MCInstrInfo * Info

Definition MCInstrAnalysis.h:35

MCInstrAnalysis(const MCInstrInfo *Info)

Definition MCInstrAnalysis.h:38

virtual ~MCInstrAnalysis()=default

virtual bool isIndirectBranch(const MCInst &Inst) const

Definition MCInstrAnalysis.h:68

Interface to description of machine instruction set.

MCRegisterInfo base class - We assume that the target defines a static array of MCRegisterDesc object...

MCRegister getProgramCounter() const

Return the register which is the program counter.

Wrapper class representing physical registers. Should be passed by value.

Generic base class for all target subtargets.

Target - Wrapper for Target specific information.

Triple - Helper class for working with autoconf configuration names.

This is an optimization pass for GlobalISel generic memory operations.