namespace llvm {
-class ConstantFP;
class BlockAddress;
-class MachineBasicBlock;
+class ConstantFP;
class GlobalValue;
+class MachineBasicBlock;
class MachineInstr;
-class TargetMachine;
class MachineRegisterInfo;
class MDNode;
+class TargetMachine;
class raw_ostream;
+class MCSymbol;
/// MachineOperand class - Representation of each machine instruction operand.
///
MO_ExternalSymbol, ///< Name of external global symbol
MO_GlobalAddress, ///< Address of a global value
MO_BlockAddress, ///< Address of a basic block
- MO_Metadata ///< Metadata reference (for debug info)
+ MO_Metadata, ///< Metadata reference (for debug info)
+ MO_MCSymbol ///< MCSymbol reference (for debug/eh info)
};
private:
/// model the GCC inline asm '&' constraint modifier.
bool IsEarlyClobber : 1;
+ /// IsDebug - True if this MO_Register 'use' operand is in a debug pseudo,
+ /// not a real instruction. Such uses should be ignored during codegen.
+ bool IsDebug : 1;
+
/// ParentMI - This is the instruction that this operand is embedded into.
/// This is valid for all operand types, when the operand is in an instr.
MachineInstr *ParentMI;
MachineBasicBlock *MBB; // For MO_MachineBasicBlock.
const ConstantFP *CFP; // For MO_FPImmediate.
int64_t ImmVal; // For MO_Immediate.
- MDNode *MD; // For MO_Metadata.
+ const MDNode *MD; // For MO_Metadata.
+ MCSymbol *Sym; // For MO_MCSymbol
struct { // For MO_Register.
unsigned RegNo;
union {
int Index; // For MO_*Index - The index itself.
const char *SymbolName; // For MO_ExternalSymbol.
- GlobalValue *GV; // For MO_GlobalAddress.
- BlockAddress *BA; // For MO_BlockAddress.
+ const GlobalValue *GV; // For MO_GlobalAddress.
+ const BlockAddress *BA; // For MO_BlockAddress.
} Val;
int64_t Offset; // An offset from the object.
} OffsetedInfo;
bool isBlockAddress() const { return OpKind == MO_BlockAddress; }
/// isMetadata - Tests if this is a MO_Metadata operand.
bool isMetadata() const { return OpKind == MO_Metadata; }
+ bool isMCSymbol() const { return OpKind == MO_MCSymbol; }
//===--------------------------------------------------------------------===//
// Accessors for Register Operands
return IsEarlyClobber;
}
+ bool isDebug() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return IsDebug;
+ }
+
/// getNextOperandForReg - Return the next MachineOperand in the function that
/// uses or defines this register.
MachineOperand *getNextOperandForReg() const {
void setIsUse(bool Val = true) {
assert(isReg() && "Wrong MachineOperand accessor");
+ assert((Val || !isDebug()) && "Marking a debug operation as def");
IsDef = !Val;
}
void setIsDef(bool Val = true) {
assert(isReg() && "Wrong MachineOperand accessor");
+ assert((!Val || !isDebug()) && "Marking a debug operation as def");
IsDef = Val;
}
void setIsKill(bool Val = true) {
assert(isReg() && !IsDef && "Wrong MachineOperand accessor");
+ assert((!Val || !isDebug()) && "Marking a debug operation as kill");
IsKill = Val;
}
IsEarlyClobber = Val;
}
+ void setIsDebug(bool Val = true) {
+ assert(isReg() && IsDef && "Wrong MachineOperand accessor");
+ IsDebug = Val;
+ }
+
//===--------------------------------------------------------------------===//
// Accessors for various operand types.
//===--------------------------------------------------------------------===//
return Contents.OffsetedInfo.Val.Index;
}
- GlobalValue *getGlobal() const {
+ const GlobalValue *getGlobal() const {
assert(isGlobal() && "Wrong MachineOperand accessor");
return Contents.OffsetedInfo.Val.GV;
}
- BlockAddress *getBlockAddress() const {
+ const BlockAddress *getBlockAddress() const {
assert(isBlockAddress() && "Wrong MachineOperand accessor");
return Contents.OffsetedInfo.Val.BA;
}
+
+ MCSymbol *getMCSymbol() const {
+ assert(isMCSymbol() && "Wrong MachineOperand accessor");
+ return Contents.Sym;
+ }
/// getOffset - Return the offset from the symbol in this operand. This always
/// returns 0 for ExternalSymbol operands.
/// the setReg method should be used.
void ChangeToRegister(unsigned Reg, bool isDef, bool isImp = false,
bool isKill = false, bool isDead = false,
- bool isUndef = false);
+ bool isUndef = false, bool isDebug = false);
//===--------------------------------------------------------------------===//
// Construction methods.
bool isKill = false, bool isDead = false,
bool isUndef = false,
bool isEarlyClobber = false,
- unsigned SubReg = 0) {
+ unsigned SubReg = 0,
+ bool isDebug = false) {
MachineOperand Op(MachineOperand::MO_Register);
Op.IsDef = isDef;
Op.IsImp = isImp;
Op.IsDead = isDead;
Op.IsUndef = isUndef;
Op.IsEarlyClobber = isEarlyClobber;
+ Op.IsDebug = isDebug;
Op.Contents.Reg.RegNo = Reg;
Op.Contents.Reg.Prev = 0;
Op.Contents.Reg.Next = 0;
Op.setTargetFlags(TargetFlags);
return Op;
}
- static MachineOperand CreateGA(GlobalValue *GV, int64_t Offset,
+ static MachineOperand CreateGA(const GlobalValue *GV, int64_t Offset,
unsigned char TargetFlags = 0) {
MachineOperand Op(MachineOperand::MO_GlobalAddress);
Op.Contents.OffsetedInfo.Val.GV = GV;
Op.setTargetFlags(TargetFlags);
return Op;
}
- static MachineOperand CreateBA(BlockAddress *BA,
+ static MachineOperand CreateBA(const BlockAddress *BA,
unsigned char TargetFlags = 0) {
MachineOperand Op(MachineOperand::MO_BlockAddress);
Op.Contents.OffsetedInfo.Val.BA = BA;
Op.setTargetFlags(TargetFlags);
return Op;
}
- static MachineOperand CreateMetadata(MDNode *Meta,
- unsigned char TargetFlags = 0) {
+ static MachineOperand CreateMetadata(const MDNode *Meta) {
MachineOperand Op(MachineOperand::MO_Metadata);
Op.Contents.MD = Meta;
- Op.setTargetFlags(TargetFlags);
return Op;
}
+ static MachineOperand CreateMCSymbol(MCSymbol *Sym) {
+ MachineOperand Op(MachineOperand::MO_MCSymbol);
+ Op.Contents.Sym = Sym;
+ return Op;
+ }
+
friend class MachineInstr;
friend class MachineRegisterInfo;
private: