///
class MachineOperand {
public:
- enum MachineOperandType {
+ enum MachineOperandType : unsigned char {
MO_Register, ///< Register operand.
MO_Immediate, ///< Immediate operand
MO_CImmediate, ///< Immediate >64bit operand
MO_RegisterMask, ///< Mask of preserved registers.
MO_RegisterLiveOut, ///< Mask of live-out registers.
MO_Metadata, ///< Metadata reference (for debug info)
- MO_MCSymbol ///< MCSymbol reference (for debug/eh info)
+ MO_MCSymbol, ///< MCSymbol reference (for debug/eh info)
+ MO_CFIIndex ///< MCCFIInstruction index.
};
private:
/// OpKind - Specify what kind of operand this is. This discriminates the
/// union.
- unsigned char OpKind; // MachineOperandType
+ MachineOperandType OpKind : 8;
/// Subregister number for MO_Register. A value of 0 indicates the
/// MO_Register has no subReg.
int64_t ImmVal; // For MO_Immediate.
const uint32_t *RegMask; // For MO_RegisterMask and MO_RegisterLiveOut.
const MDNode *MD; // For MO_Metadata.
- MCSymbol *Sym; // For MO_MCSymbol
+ MCSymbol *Sym; // For MO_MCSymbol.
+ unsigned CFIIndex; // For MO_CFI.
struct { // For MO_Register.
// Register number is in SmallContents.RegNo.
} Contents;
explicit MachineOperand(MachineOperandType K)
- : OpKind(K), SubReg_TargetFlags(0), ParentMI(0) {}
+ : OpKind(K), SubReg_TargetFlags(0), ParentMI(nullptr) {}
public:
/// getType - Returns the MachineOperandType for this operand.
///
///
/// Never call clearParent() on an operand in a MachineInstr.
///
- void clearParent() { ParentMI = 0; }
+ void clearParent() { ParentMI = nullptr; }
- void print(raw_ostream &os, const TargetMachine *TM = 0) const;
+ void print(raw_ostream &os, const TargetRegisterInfo *TRI = nullptr) const;
//===--------------------------------------------------------------------===//
// Accessors that tell you what kind of MachineOperand you're looking at.
bool isReg() const { return OpKind == MO_Register; }
/// isImm - Tests if this is a MO_Immediate operand.
bool isImm() const { return OpKind == MO_Immediate; }
- /// isCImm - Test if t his is a MO_CImmediate operand.
+ /// isCImm - Test if this is a MO_CImmediate operand.
bool isCImm() const { return OpKind == MO_CImmediate; }
/// isFPImm - Tests if this is a MO_FPImmediate operand.
bool isFPImm() const { return OpKind == MO_FPImmediate; }
/// isMetadata - Tests if this is a MO_Metadata operand.
bool isMetadata() const { return OpKind == MO_Metadata; }
bool isMCSymbol() const { return OpKind == MO_MCSymbol; }
-
+ bool isCFIIndex() const { return OpKind == MO_CFIIndex; }
//===--------------------------------------------------------------------===//
// Accessors for Register Operands
return Contents.Sym;
}
+ unsigned getCFIIndex() const {
+ assert(isCFIIndex() && "Wrong MachineOperand accessor");
+ return Contents.CFIIndex;
+ }
+
/// getOffset - Return the offset from the symbol in this operand. This always
/// returns 0 for ExternalSymbol operands.
int64_t getOffset() const {
Contents.ImmVal = immVal;
}
+ void setFPImm(const ConstantFP *CFP) {
+ assert(isFPImm() && "Wrong MachineOperand mutator");
+ Contents.CFP = CFP;
+ }
+
void setOffset(int64_t Offset) {
assert((isGlobal() || isSymbol() || isCPI() || isTargetIndex() ||
isBlockAddress()) && "Wrong MachineOperand accessor");
/// the setImm method should be used.
void ChangeToImmediate(int64_t ImmVal);
+ /// ChangeToFPImmediate - Replace this operand with a new FP immediate operand
+ /// of the specified value. If an operand is known to be an FP immediate
+ /// already, the setFPImm method should be used.
+ void ChangeToFPImmediate(const ConstantFP *FPImm);
+
+ /// ChangeToES - Replace this operand with a new external symbol operand.
+ void ChangeToES(const char *SymName, unsigned char TargetFlags = 0);
+
+ /// ChangeToMCSymbol - Replace this operand with a new MC symbol operand.
+ void ChangeToMCSymbol(MCSymbol *Sym);
+
/// ChangeToRegister - Replace this operand with a new register operand of
/// the specified value. If an operand is known to be an register already,
/// the setReg method should be used.
Op.TiedTo = 0;
Op.IsDebug = isDebug;
Op.SmallContents.RegNo = Reg;
- Op.Contents.Reg.Prev = 0;
- Op.Contents.Reg.Next = 0;
+ Op.Contents.Reg.Prev = nullptr;
+ Op.Contents.Reg.Next = nullptr;
Op.setSubReg(SubReg);
return Op;
}
return Op;
}
+ static MachineOperand CreateCFIIndex(unsigned CFIIndex) {
+ MachineOperand Op(MachineOperand::MO_CFIIndex);
+ Op.Contents.CFIIndex = CFIIndex;
+ return Op;
+ }
+
friend class MachineInstr;
friend class MachineRegisterInfo;
private:
+ void removeRegFromUses();
+
//===--------------------------------------------------------------------===//
// Methods for handling register use/def lists.
//===--------------------------------------------------------------------===//
/// part of a machine instruction.
bool isOnRegUseList() const {
assert(isReg() && "Can only add reg operand to use lists");
- return Contents.Reg.Prev != 0;
+ return Contents.Reg.Prev != nullptr;
}
};
inline raw_ostream &operator<<(raw_ostream &OS, const MachineOperand& MO) {
- MO.print(OS, 0);
+ MO.print(OS, nullptr);
return OS;
}