MCInstrDesc.cpp Source File (original) (raw)

18using namespace llvm;

23 return true;

25 if (!PC)

26 return false;

28 return true;

29 return false;

30}

35 if (ImpDef == Reg || (MRI && MRI->isSubRegister(Reg, ImpDef)))

36 return true;

37 return false;

38}

42 for (int i = 0, e = NumDefs; i != e; ++i)

43 if (MI.getOperand(i).isReg() && MI.getOperand(i).getReg() &&

45 return true;

47 for (int i = NumOperands - 1, e = MI.getNumOperands(); i != e; ++i)

48 if (MI.getOperand(i).isReg() &&

50 return true;

52}

unsigned const MachineRegisterInfo * MRI

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

bool isIndirectBranch() const

Return true if this is an indirect branch, such as a branch through a register.

LLVM_ABI bool hasDefOfPhysReg(const MCInst &MI, MCRegister Reg, const MCRegisterInfo &RI) const

Return true if this instruction defines the specified physical register, either explicitly or implici...

Definition MCInstrDesc.cpp:40

unsigned short NumOperands

LLVM_ABI bool mayAffectControlFlow(const MCInst &MI, const MCRegisterInfo &RI) const

Return true if this is a branch or an instruction which directly writes to the program counter.

Definition MCInstrDesc.cpp:20

bool isBranch() const

Returns true if this is a conditional, unconditional, or indirect branch.

bool variadicOpsAreDefs() const

Return true if variadic operands of this instruction are definitions.

ArrayRef< MCPhysReg > implicit_defs() const

Return a list of registers that are potentially written by any instance of this machine instruction.

bool isCall() const

Return true if the instruction is a call.

bool isReturn() const

Return true if the instruction is a return.

LLVM_ABI bool hasImplicitDefOfPhysReg(MCRegister Reg, const MCRegisterInfo *MRI=nullptr) const

Return true if this instruction implicitly defines the specified physical register.

Definition MCInstrDesc.cpp:32

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.

bool isSubRegisterEq(MCRegister RegA, MCRegister RegB) const

Returns true if RegB is a sub-register of RegA or if RegB == RegA.

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

This is an optimization pass for GlobalISel generic memory operations.

uint16_t MCPhysReg

An unsigned integer type large enough to represent all physical registers, but not necessarily virtua...