#define LLVM_CODEGEN_MACHINEOPERAND_H
#include "llvm/Support/DataTypes.h"
-#include <vector>
#include <cassert>
-#include <iosfwd>
namespace llvm {
-
-class MachineBasicBlock;
+
+class BlockAddress;
+class ConstantFP;
+class ConstantInt;
class GlobalValue;
+class MachineBasicBlock;
class MachineInstr;
+class MachineRegisterInfo;
+class MDNode;
class TargetMachine;
-
+class TargetRegisterInfo;
+class hash_code;
+class raw_ostream;
+class MCSymbol;
+
/// MachineOperand class - Representation of each machine instruction operand.
///
+/// This class isn't a POD type because it has a private constructor, but its
+/// destructor must be trivial. Functions like MachineInstr::addOperand(),
+/// MachineRegisterInfo::moveOperands(), and MF::DeleteMachineInstr() depend on
+/// not having to call the MachineOperand destructor.
+///
class MachineOperand {
public:
- enum MachineOperandType {
- MO_Register, // Register operand.
- MO_Immediate, // Immediate Operand
- MO_MachineBasicBlock, // MachineBasicBlock reference
- MO_FrameIndex, // Abstract Stack Frame Index
- MO_ConstantPoolIndex, // Address of indexed Constant in Constant Pool
- MO_JumpTableIndex, // Address of indexed Jump Table for switch
- MO_ExternalSymbol, // Name of external global symbol
- MO_GlobalAddress // Address of a global value
+ enum MachineOperandType : unsigned char {
+ MO_Register, ///< Register operand.
+ MO_Immediate, ///< Immediate operand
+ MO_CImmediate, ///< Immediate >64bit operand
+ MO_FPImmediate, ///< Floating-point immediate operand
+ MO_MachineBasicBlock, ///< MachineBasicBlock reference
+ MO_FrameIndex, ///< Abstract Stack Frame Index
+ MO_ConstantPoolIndex, ///< Address of indexed Constant in Constant Pool
+ MO_TargetIndex, ///< Target-dependent index+offset operand.
+ MO_JumpTableIndex, ///< Address of indexed Jump Table for switch
+ MO_ExternalSymbol, ///< Name of external global symbol
+ MO_GlobalAddress, ///< Address of a global value
+ MO_BlockAddress, ///< Address of a basic block
+ 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_CFIIndex ///< MCCFIInstruction index.
};
private:
+ /// OpKind - Specify what kind of operand this is. This discriminates the
+ /// union.
+ MachineOperandType OpKind : 8;
+
+ /// Subregister number for MO_Register. A value of 0 indicates the
+ /// MO_Register has no subReg.
+ ///
+ /// For all other kinds of operands, this field holds target-specific flags.
+ unsigned SubReg_TargetFlags : 12;
+
+ /// TiedTo - Non-zero when this register operand is tied to another register
+ /// operand. The encoding of this field is described in the block comment
+ /// before MachineInstr::tieOperands().
+ unsigned char TiedTo : 4;
+
+ /// IsDef/IsImp/IsKill/IsDead flags - These are only valid for MO_Register
+ /// operands.
+
+ /// IsDef - True if this is a def, false if this is a use of the register.
+ ///
+ bool IsDef : 1;
+
+ /// IsImp - True if this is an implicit def or use, false if it is explicit.
+ ///
+ bool IsImp : 1;
+
+ /// IsKill - True if this instruction is the last use of the register on this
+ /// path through the function. This is only valid on uses of registers.
+ bool IsKill : 1;
+
+ /// IsDead - True if this register is never used by a subsequent instruction.
+ /// This is only valid on definitions of registers.
+ bool IsDead : 1;
+
+ /// IsUndef - True if this register operand reads an "undef" value, i.e. the
+ /// read value doesn't matter. This flag can be set on both use and def
+ /// operands. On a sub-register def operand, it refers to the part of the
+ /// register that isn't written. On a full-register def operand, it is a
+ /// noop. See readsReg().
+ ///
+ /// This is only valid on registers.
+ ///
+ /// Note that an instruction may have multiple <undef> operands referring to
+ /// the same register. In that case, the instruction may depend on those
+ /// operands reading the same dont-care value. For example:
+ ///
+ /// %vreg1<def> = XOR %vreg2<undef>, %vreg2<undef>
+ ///
+ /// Any register can be used for %vreg2, and its value doesn't matter, but
+ /// the two operands must be the same register.
+ ///
+ bool IsUndef : 1;
+
+ /// IsInternalRead - True if this operand reads a value that was defined
+ /// inside the same instruction or bundle. This flag can be set on both use
+ /// and def operands. On a sub-register def operand, it refers to the part
+ /// of the register that isn't written. On a full-register def operand, it
+ /// is a noop.
+ ///
+ /// When this flag is set, the instruction bundle must contain at least one
+ /// other def of the register. If multiple instructions in the bundle define
+ /// the register, the meaning is target-defined.
+ bool IsInternalRead : 1;
+
+ /// IsEarlyClobber - True if this MO_Register 'def' operand is written to
+ /// by the MachineInstr before all input registers are read. This is used to
+ /// 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;
+
+ /// SmallContents - This really should be part of the Contents union, but
+ /// lives out here so we can get a better packed struct.
+ /// MO_Register: Register number.
+ /// OffsetedInfo: Low bits of offset.
union {
- GlobalValue *GV; // For MO_GlobalAddress.
- MachineBasicBlock *MBB; // For MO_MachineBasicBlock.
- const char *SymbolName; // For MO_ExternalSymbol.
unsigned RegNo; // For MO_Register.
- int64_t ImmVal; // For MO_Immediate.
- int Index; // For MO_FrameIndex/CPI/JTI.
- } contents;
+ unsigned OffsetLo; // Matches Contents.OffsetedInfo.OffsetHi.
+ } SmallContents;
/// 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;
-
- MachineOperandType opType:8; // Discriminate the union.
- bool IsDef : 1; // True if this is a def, false if this is a use.
- bool IsImp : 1; // True if this is an implicit def or use.
-
- bool IsKill : 1; // True if this is a reg use and the reg is dead
- // immediately after the read.
- bool IsDead : 1; // True if this is a reg def and the reg is dead
- // immediately after the write. i.e. A register
- // that is defined but never used.
-
- /// SubReg - Subregister number, only valid for MO_Register. A value of 0
- /// indicates the MO_Register has no subReg.
- unsigned char SubReg;
-
- /// auxInfo - auxiliary information used by the MachineOperand
+
+ /// Contents union - This contains the payload for the various operand types.
union {
- /// offset - Offset to address of global or external, only valid for
- /// MO_GlobalAddress, MO_ExternalSym and MO_ConstantPoolIndex
- int offset;
+ MachineBasicBlock *MBB; // For MO_MachineBasicBlock.
+ const ConstantFP *CFP; // For MO_FPImmediate.
+ const ConstantInt *CI; // For MO_CImmediate. Integers > 64bit.
+ 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.
+ unsigned CFIIndex; // For MO_CFI.
+
+ struct { // For MO_Register.
+ // Register number is in SmallContents.RegNo.
+ MachineOperand *Prev; // Access list for register. See MRI.
+ MachineOperand *Next;
+ } Reg;
- } auxInfo;
-
- MachineOperand() : ParentMI(0) {}
+ /// OffsetedInfo - This struct contains the offset and an object identifier.
+ /// this represent the object as with an optional offset from it.
+ struct {
+ union {
+ int Index; // For MO_*Index - The index itself.
+ const char *SymbolName; // For MO_ExternalSymbol.
+ const GlobalValue *GV; // For MO_GlobalAddress.
+ const BlockAddress *BA; // For MO_BlockAddress.
+ } Val;
+ // Low bits of offset are in SmallContents.OffsetLo.
+ int OffsetHi; // An offset from the object, high 32 bits.
+ } OffsetedInfo;
+ } Contents;
+ explicit MachineOperand(MachineOperandType K)
+ : OpKind(K), SubReg_TargetFlags(0), ParentMI(nullptr) {}
public:
- MachineOperand(const MachineOperand &M) {
- *this = M;
- }
-
- ~MachineOperand() {}
-
/// getType - Returns the MachineOperandType for this operand.
///
- MachineOperandType getType() const { return opType; }
+ MachineOperandType getType() const { return (MachineOperandType)OpKind; }
+
+ unsigned getTargetFlags() const {
+ return isReg() ? 0 : SubReg_TargetFlags;
+ }
+ void setTargetFlags(unsigned F) {
+ assert(!isReg() && "Register operands can't have target flags");
+ SubReg_TargetFlags = F;
+ assert(SubReg_TargetFlags == F && "Target flags out of range");
+ }
+ void addTargetFlag(unsigned F) {
+ assert(!isReg() && "Register operands can't have target flags");
+ SubReg_TargetFlags |= F;
+ assert((SubReg_TargetFlags & F) && "Target flags out of range");
+ }
+
/// getParent - Return the instruction that this operand belongs to.
///
MachineInstr *getParent() { return ParentMI; }
const MachineInstr *getParent() const { return ParentMI; }
-
- void print(std::ostream &os, const TargetMachine *TM = 0) const;
- /// Accessors that tell you what kind of MachineOperand you're looking at.
+ /// clearParent - Reset the parent pointer.
+ ///
+ /// The MachineOperand copy constructor also copies ParentMI, expecting the
+ /// original to be deleted. If a MachineOperand is ever stored outside a
+ /// MachineInstr, the parent pointer must be cleared.
///
- bool isRegister() const { return opType == MO_Register; }
- bool isImmediate() const { return opType == MO_Immediate; }
- bool isMachineBasicBlock() const { return opType == MO_MachineBasicBlock; }
- bool isFrameIndex() const { return opType == MO_FrameIndex; }
- bool isConstantPoolIndex() const { return opType == MO_ConstantPoolIndex; }
- bool isJumpTableIndex() const { return opType == MO_JumpTableIndex; }
- bool isGlobalAddress() const { return opType == MO_GlobalAddress; }
- bool isExternalSymbol() const { return opType == MO_ExternalSymbol; }
+ /// Never call clearParent() on an operand in a MachineInstr.
+ ///
+ void clearParent() { ParentMI = nullptr; }
+
+ void print(raw_ostream &os, const TargetRegisterInfo *TRI = nullptr) const;
+
+ //===--------------------------------------------------------------------===//
+ // Accessors that tell you what kind of MachineOperand you're looking at.
+ //===--------------------------------------------------------------------===//
+
+ /// isReg - Tests if this is a MO_Register operand.
+ 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 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; }
+ /// isMBB - Tests if this is a MO_MachineBasicBlock operand.
+ bool isMBB() const { return OpKind == MO_MachineBasicBlock; }
+ /// isFI - Tests if this is a MO_FrameIndex operand.
+ bool isFI() const { return OpKind == MO_FrameIndex; }
+ /// isCPI - Tests if this is a MO_ConstantPoolIndex operand.
+ bool isCPI() const { return OpKind == MO_ConstantPoolIndex; }
+ /// isTargetIndex - Tests if this is a MO_TargetIndex operand.
+ bool isTargetIndex() const { return OpKind == MO_TargetIndex; }
+ /// isJTI - Tests if this is a MO_JumpTableIndex operand.
+ bool isJTI() const { return OpKind == MO_JumpTableIndex; }
+ /// isGlobal - Tests if this is a MO_GlobalAddress operand.
+ bool isGlobal() const { return OpKind == MO_GlobalAddress; }
+ /// isSymbol - Tests if this is a MO_ExternalSymbol operand.
+ bool isSymbol() const { return OpKind == MO_ExternalSymbol; }
+ /// isBlockAddress - Tests if this is a MO_BlockAddress operand.
+ bool isBlockAddress() const { return OpKind == MO_BlockAddress; }
+ /// isRegMask - Tests if this is a MO_RegisterMask operand.
+ bool isRegMask() const { return OpKind == MO_RegisterMask; }
+ /// isRegLiveOut - Tests if this is a MO_RegisterLiveOut operand.
+ bool isRegLiveOut() const { return OpKind == MO_RegisterLiveOut; }
+ /// 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
/// getReg - Returns the register number.
unsigned getReg() const {
- assert(isRegister() && "This is not a register operand!");
- return contents.RegNo;
+ assert(isReg() && "This is not a register operand!");
+ return SmallContents.RegNo;
}
-
+
unsigned getSubReg() const {
- assert(isRegister() && "Wrong MachineOperand accessor");
- return (unsigned)SubReg;
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return SubReg_TargetFlags;
}
-
- bool isUse() const {
- assert(isRegister() && "Wrong MachineOperand accessor");
+
+ bool isUse() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
return !IsDef;
}
-
+
bool isDef() const {
- assert(isRegister() && "Wrong MachineOperand accessor");
+ assert(isReg() && "Wrong MachineOperand accessor");
return IsDef;
}
-
- bool isImplicit() const {
- assert(isRegister() && "Wrong MachineOperand accessor");
+
+ bool isImplicit() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
return IsImp;
}
-
+
bool isDead() const {
- assert(isRegister() && "Wrong MachineOperand accessor");
+ assert(isReg() && "Wrong MachineOperand accessor");
return IsDead;
}
-
+
bool isKill() const {
- assert(isRegister() && "Wrong MachineOperand accessor");
+ assert(isReg() && "Wrong MachineOperand accessor");
return IsKill;
}
+ bool isUndef() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return IsUndef;
+ }
+
+ bool isInternalRead() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return IsInternalRead;
+ }
+
+ bool isEarlyClobber() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return IsEarlyClobber;
+ }
+
+ bool isTied() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return TiedTo;
+ }
+
+ bool isDebug() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return IsDebug;
+ }
+
+ /// readsReg - Returns true if this operand reads the previous value of its
+ /// register. A use operand with the <undef> flag set doesn't read its
+ /// register. A sub-register def implicitly reads the other parts of the
+ /// register being redefined unless the <undef> flag is set.
+ ///
+ /// This refers to reading the register value from before the current
+ /// instruction or bundle. Internal bundle reads are not included.
+ bool readsReg() const {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ return !isUndef() && !isInternalRead() && (isUse() || getSubReg());
+ }
+
//===--------------------------------------------------------------------===//
// Mutators for Register Operands
//===--------------------------------------------------------------------===//
-
- void setReg(unsigned Reg) {
- assert(isRegister() && "This is not a register operand!");
- contents.RegNo = Reg;
- }
+
+ /// Change the register this operand corresponds to.
+ ///
+ void setReg(unsigned Reg);
void setSubReg(unsigned subReg) {
- assert(isRegister() && "Wrong MachineOperand accessor");
- SubReg = (unsigned char)subReg;
- }
-
- void setIsUse(bool Val = true) {
- assert(isRegister() && "Wrong MachineOperand accessor");
- IsDef = !Val;
- }
-
- void setIsDef(bool Val = true) {
- assert(isRegister() && "Wrong MachineOperand accessor");
- IsDef = Val;
+ assert(isReg() && "Wrong MachineOperand accessor");
+ SubReg_TargetFlags = subReg;
+ assert(SubReg_TargetFlags == subReg && "SubReg out of range");
}
- void setImplicit(bool Val = true) {
- assert(isRegister() && "Wrong MachineOperand accessor");
+ /// substVirtReg - Substitute the current register with the virtual
+ /// subregister Reg:SubReg. Take any existing SubReg index into account,
+ /// using TargetRegisterInfo to compose the subreg indices if necessary.
+ /// Reg must be a virtual register, SubIdx can be 0.
+ ///
+ void substVirtReg(unsigned Reg, unsigned SubIdx, const TargetRegisterInfo&);
+
+ /// substPhysReg - Substitute the current register with the physical register
+ /// Reg, taking any existing SubReg into account. For instance,
+ /// substPhysReg(%EAX) will change %reg1024:sub_8bit to %AL.
+ ///
+ void substPhysReg(unsigned Reg, const TargetRegisterInfo&);
+
+ void setIsUse(bool Val = true) { setIsDef(!Val); }
+
+ void setIsDef(bool Val = true);
+
+ void setImplicit(bool Val = true) {
+ assert(isReg() && "Wrong MachineOperand accessor");
IsImp = Val;
}
void setIsKill(bool Val = true) {
- assert(isRegister() && !IsDef && "Wrong MachineOperand accessor");
+ assert(isReg() && !IsDef && "Wrong MachineOperand accessor");
+ assert((!Val || !isDebug()) && "Marking a debug operation as kill");
IsKill = Val;
}
-
+
void setIsDead(bool Val = true) {
- assert(isRegister() && IsDef && "Wrong MachineOperand accessor");
+ assert(isReg() && IsDef && "Wrong MachineOperand accessor");
IsDead = Val;
}
+ void setIsUndef(bool Val = true) {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ IsUndef = Val;
+ }
+
+ void setIsInternalRead(bool Val = true) {
+ assert(isReg() && "Wrong MachineOperand accessor");
+ IsInternalRead = Val;
+ }
+
+ void setIsEarlyClobber(bool Val = true) {
+ assert(isReg() && IsDef && "Wrong MachineOperand accessor");
+ IsEarlyClobber = Val;
+ }
+
+ void setIsDebug(bool Val = true) {
+ assert(isReg() && !IsDef && "Wrong MachineOperand accessor");
+ IsDebug = Val;
+ }
//===--------------------------------------------------------------------===//
// Accessors for various operand types.
//===--------------------------------------------------------------------===//
-
+
int64_t getImm() const {
- assert(isImmediate() && "Wrong MachineOperand accessor");
- return contents.ImmVal;
+ assert(isImm() && "Wrong MachineOperand accessor");
+ return Contents.ImmVal;
}
-
- MachineBasicBlock *getMBB() const {
- assert(isMachineBasicBlock() && "Wrong MachineOperand accessor");
- return contents.MBB;
+
+ const ConstantInt *getCImm() const {
+ assert(isCImm() && "Wrong MachineOperand accessor");
+ return Contents.CI;
}
- MachineBasicBlock *getMachineBasicBlock() const {
- assert(isMachineBasicBlock() && "Wrong MachineOperand accessor");
- return contents.MBB;
+
+ const ConstantFP *getFPImm() const {
+ assert(isFPImm() && "Wrong MachineOperand accessor");
+ return Contents.CFP;
}
- void setMachineBasicBlock(MachineBasicBlock *MBB) {
- assert(isMachineBasicBlock() && "Wrong MachineOperand accessor");
- contents.MBB = MBB;
+
+ MachineBasicBlock *getMBB() const {
+ assert(isMBB() && "Wrong MachineOperand accessor");
+ return Contents.MBB;
+ }
+
+ int getIndex() const {
+ assert((isFI() || isCPI() || isTargetIndex() || isJTI()) &&
+ "Wrong MachineOperand accessor");
+ return Contents.OffsetedInfo.Val.Index;
}
- int getFrameIndex() const {
- assert(isFrameIndex() && "Wrong MachineOperand accessor");
- return (int)contents.Index;
+
+ const GlobalValue *getGlobal() const {
+ assert(isGlobal() && "Wrong MachineOperand accessor");
+ return Contents.OffsetedInfo.Val.GV;
}
- unsigned getConstantPoolIndex() const {
- assert(isConstantPoolIndex() && "Wrong MachineOperand accessor");
- return (unsigned)contents.Index;
+
+ const BlockAddress *getBlockAddress() const {
+ assert(isBlockAddress() && "Wrong MachineOperand accessor");
+ return Contents.OffsetedInfo.Val.BA;
}
- unsigned getJumpTableIndex() const {
- assert(isJumpTableIndex() && "Wrong MachineOperand accessor");
- return (unsigned)contents.Index;
+
+ MCSymbol *getMCSymbol() const {
+ assert(isMCSymbol() && "Wrong MachineOperand accessor");
+ return Contents.Sym;
}
- GlobalValue *getGlobal() const {
- assert(isGlobalAddress() && "Wrong MachineOperand accessor");
- return contents.GV;
+
+ unsigned getCFIIndex() const {
+ assert(isCFIIndex() && "Wrong MachineOperand accessor");
+ return Contents.CFIIndex;
}
- int getOffset() const {
- assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex()) &&
- "Wrong MachineOperand accessor");
- return auxInfo.offset;
+
+ /// getOffset - Return the offset from the symbol in this operand. This always
+ /// returns 0 for ExternalSymbol operands.
+ int64_t getOffset() const {
+ assert((isGlobal() || isSymbol() || isCPI() || isTargetIndex() ||
+ isBlockAddress()) && "Wrong MachineOperand accessor");
+ return int64_t(uint64_t(Contents.OffsetedInfo.OffsetHi) << 32) |
+ SmallContents.OffsetLo;
}
+
const char *getSymbolName() const {
- assert(isExternalSymbol() && "Wrong MachineOperand accessor");
- return contents.SymbolName;
+ assert(isSymbol() && "Wrong MachineOperand accessor");
+ return Contents.OffsetedInfo.Val.SymbolName;
+ }
+
+ /// clobbersPhysReg - Returns true if this RegMask clobbers PhysReg.
+ /// It is sometimes necessary to detach the register mask pointer from its
+ /// machine operand. This static method can be used for such detached bit
+ /// mask pointers.
+ static bool clobbersPhysReg(const uint32_t *RegMask, unsigned PhysReg) {
+ // See TargetRegisterInfo.h.
+ assert(PhysReg < (1u << 30) && "Not a physical register");
+ return !(RegMask[PhysReg / 32] & (1u << PhysReg % 32));
}
-
+
+ /// clobbersPhysReg - Returns true if this RegMask operand clobbers PhysReg.
+ bool clobbersPhysReg(unsigned PhysReg) const {
+ return clobbersPhysReg(getRegMask(), PhysReg);
+ }
+
+ /// getRegMask - Returns a bit mask of registers preserved by this RegMask
+ /// operand.
+ const uint32_t *getRegMask() const {
+ assert(isRegMask() && "Wrong MachineOperand accessor");
+ return Contents.RegMask;
+ }
+
+ /// getRegLiveOut - Returns a bit mask of live-out registers.
+ const uint32_t *getRegLiveOut() const {
+ assert(isRegLiveOut() && "Wrong MachineOperand accessor");
+ return Contents.RegMask;
+ }
+
+ const MDNode *getMetadata() const {
+ assert(isMetadata() && "Wrong MachineOperand accessor");
+ return Contents.MD;
+ }
+
//===--------------------------------------------------------------------===//
// Mutators for various operand types.
//===--------------------------------------------------------------------===//
-
+
void setImm(int64_t immVal) {
- assert(isImmediate() && "Wrong MachineOperand mutator");
- contents.ImmVal = immVal;
+ assert(isImm() && "Wrong MachineOperand mutator");
+ Contents.ImmVal = immVal;
}
- void setOffset(int Offset) {
- assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex()) &&
- "Wrong MachineOperand accessor");
- auxInfo.offset = Offset;
+ void setFPImm(const ConstantFP *CFP) {
+ assert(isFPImm() && "Wrong MachineOperand mutator");
+ Contents.CFP = CFP;
}
-
- void setConstantPoolIndex(unsigned Idx) {
- assert(isConstantPoolIndex() && "Wrong MachineOperand accessor");
- contents.Index = Idx;
+
+ void setOffset(int64_t Offset) {
+ assert((isGlobal() || isSymbol() || isCPI() || isTargetIndex() ||
+ isBlockAddress()) && "Wrong MachineOperand accessor");
+ SmallContents.OffsetLo = unsigned(Offset);
+ Contents.OffsetedInfo.OffsetHi = int(Offset >> 32);
}
-
- void setJumpTableIndex(unsigned Idx) {
- assert(isJumpTableIndex() && "Wrong MachineOperand accessor");
- contents.Index = Idx;
+
+ void setIndex(int Idx) {
+ assert((isFI() || isCPI() || isTargetIndex() || isJTI()) &&
+ "Wrong MachineOperand accessor");
+ Contents.OffsetedInfo.Val.Index = Idx;
+ }
+
+ void setMBB(MachineBasicBlock *MBB) {
+ assert(isMBB() && "Wrong MachineOperand accessor");
+ Contents.MBB = MBB;
}
-
+
//===--------------------------------------------------------------------===//
// Other methods.
//===--------------------------------------------------------------------===//
-
+
/// isIdenticalTo - Return true if this operand is identical to the specified
/// operand. Note: This method ignores isKill and isDead properties.
bool isIdenticalTo(const MachineOperand &Other) const;
-
+
+ /// \brief MachineOperand hash_value overload.
+ ///
+ /// Note that this includes the same information in the hash that
+ /// isIdenticalTo uses for comparison. It is thus suited for use in hash
+ /// tables which use that function for equality comparisons only.
+ friend hash_code hash_value(const MachineOperand &MO);
+
/// ChangeToImmediate - Replace this operand with a new immediate operand of
/// the specified value. If an operand is known to be an immediate already,
/// the setImm method should be used.
- void ChangeToImmediate(int64_t ImmVal) {
- opType = MO_Immediate;
- contents.ImmVal = ImmVal;
- }
+ 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.
void ChangeToRegister(unsigned Reg, bool isDef, bool isImp = false,
- bool isKill = false, bool isDead = false) {
- opType = MO_Register;
- contents.RegNo = Reg;
- IsDef = isDef;
- IsImp = isImp;
- IsKill = isKill;
- IsDead = isDead;
- SubReg = 0;
- }
-
+ bool isKill = false, bool isDead = false,
+ bool isUndef = false, bool isDebug = false);
+
//===--------------------------------------------------------------------===//
// Construction methods.
//===--------------------------------------------------------------------===//
-
+
static MachineOperand CreateImm(int64_t Val) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_Immediate;
- Op.contents.ImmVal = Val;
+ MachineOperand Op(MachineOperand::MO_Immediate);
+ Op.setImm(Val);
+ return Op;
+ }
+
+ static MachineOperand CreateCImm(const ConstantInt *CI) {
+ MachineOperand Op(MachineOperand::MO_CImmediate);
+ Op.Contents.CI = CI;
return Op;
}
-
+
+ static MachineOperand CreateFPImm(const ConstantFP *CFP) {
+ MachineOperand Op(MachineOperand::MO_FPImmediate);
+ Op.Contents.CFP = CFP;
+ return Op;
+ }
+
static MachineOperand CreateReg(unsigned Reg, bool isDef, bool isImp = false,
bool isKill = false, bool isDead = false,
- unsigned SubReg = 0) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_Register;
+ bool isUndef = false,
+ bool isEarlyClobber = false,
+ unsigned SubReg = 0,
+ bool isDebug = false,
+ bool isInternalRead = false) {
+ assert(!(isDead && !isDef) && "Dead flag on non-def");
+ assert(!(isKill && isDef) && "Kill flag on def");
+ MachineOperand Op(MachineOperand::MO_Register);
Op.IsDef = isDef;
Op.IsImp = isImp;
Op.IsKill = isKill;
Op.IsDead = isDead;
- Op.contents.RegNo = Reg;
- Op.SubReg = SubReg;
+ Op.IsUndef = isUndef;
+ Op.IsInternalRead = isInternalRead;
+ Op.IsEarlyClobber = isEarlyClobber;
+ Op.TiedTo = 0;
+ Op.IsDebug = isDebug;
+ Op.SmallContents.RegNo = Reg;
+ Op.Contents.Reg.Prev = nullptr;
+ Op.Contents.Reg.Next = nullptr;
+ Op.setSubReg(SubReg);
+ return Op;
+ }
+ static MachineOperand CreateMBB(MachineBasicBlock *MBB,
+ unsigned char TargetFlags = 0) {
+ MachineOperand Op(MachineOperand::MO_MachineBasicBlock);
+ Op.setMBB(MBB);
+ Op.setTargetFlags(TargetFlags);
+ return Op;
+ }
+ static MachineOperand CreateFI(int Idx) {
+ MachineOperand Op(MachineOperand::MO_FrameIndex);
+ Op.setIndex(Idx);
+ return Op;
+ }
+ static MachineOperand CreateCPI(unsigned Idx, int Offset,
+ unsigned char TargetFlags = 0) {
+ MachineOperand Op(MachineOperand::MO_ConstantPoolIndex);
+ Op.setIndex(Idx);
+ Op.setOffset(Offset);
+ Op.setTargetFlags(TargetFlags);
+ return Op;
+ }
+ static MachineOperand CreateTargetIndex(unsigned Idx, int64_t Offset,
+ unsigned char TargetFlags = 0) {
+ MachineOperand Op(MachineOperand::MO_TargetIndex);
+ Op.setIndex(Idx);
+ Op.setOffset(Offset);
+ Op.setTargetFlags(TargetFlags);
+ return Op;
+ }
+ static MachineOperand CreateJTI(unsigned Idx,
+ unsigned char TargetFlags = 0) {
+ MachineOperand Op(MachineOperand::MO_JumpTableIndex);
+ Op.setIndex(Idx);
+ Op.setTargetFlags(TargetFlags);
return Op;
}
- static MachineOperand CreateMBB(MachineBasicBlock *MBB) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_MachineBasicBlock;
- Op.contents.MBB = MBB;
+ 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.setOffset(Offset);
+ Op.setTargetFlags(TargetFlags);
return Op;
}
- static MachineOperand CreateFI(unsigned Idx) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_FrameIndex;
- Op.contents.Index = Idx;
+ static MachineOperand CreateES(const char *SymName,
+ unsigned char TargetFlags = 0) {
+ MachineOperand Op(MachineOperand::MO_ExternalSymbol);
+ Op.Contents.OffsetedInfo.Val.SymbolName = SymName;
+ Op.setOffset(0); // Offset is always 0.
+ Op.setTargetFlags(TargetFlags);
return Op;
}
- static MachineOperand CreateCPI(unsigned Idx, int Offset) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_ConstantPoolIndex;
- Op.contents.Index = Idx;
- Op.auxInfo.offset = Offset;
+ static MachineOperand CreateBA(const BlockAddress *BA, int64_t Offset,
+ unsigned char TargetFlags = 0) {
+ MachineOperand Op(MachineOperand::MO_BlockAddress);
+ Op.Contents.OffsetedInfo.Val.BA = BA;
+ Op.setOffset(Offset);
+ Op.setTargetFlags(TargetFlags);
return Op;
}
- static MachineOperand CreateJTI(unsigned Idx) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_JumpTableIndex;
- Op.contents.Index = Idx;
+ /// CreateRegMask - Creates a register mask operand referencing Mask. The
+ /// operand does not take ownership of the memory referenced by Mask, it must
+ /// remain valid for the lifetime of the operand.
+ ///
+ /// A RegMask operand represents a set of non-clobbered physical registers on
+ /// an instruction that clobbers many registers, typically a call. The bit
+ /// mask has a bit set for each physreg that is preserved by this
+ /// instruction, as described in the documentation for
+ /// TargetRegisterInfo::getCallPreservedMask().
+ ///
+ /// Any physreg with a 0 bit in the mask is clobbered by the instruction.
+ ///
+ static MachineOperand CreateRegMask(const uint32_t *Mask) {
+ assert(Mask && "Missing register mask");
+ MachineOperand Op(MachineOperand::MO_RegisterMask);
+ Op.Contents.RegMask = Mask;
return Op;
}
- static MachineOperand CreateGA(GlobalValue *GV, int Offset) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_GlobalAddress;
- Op.contents.GV = GV;
- Op.auxInfo.offset = Offset;
+ static MachineOperand CreateRegLiveOut(const uint32_t *Mask) {
+ assert(Mask && "Missing live-out register mask");
+ MachineOperand Op(MachineOperand::MO_RegisterLiveOut);
+ Op.Contents.RegMask = Mask;
return Op;
}
- static MachineOperand CreateES(const char *SymName, int Offset = 0) {
- MachineOperand Op;
- Op.opType = MachineOperand::MO_ExternalSymbol;
- Op.contents.SymbolName = SymName;
- Op.auxInfo.offset = Offset;
+ static MachineOperand CreateMetadata(const MDNode *Meta) {
+ MachineOperand Op(MachineOperand::MO_Metadata);
+ Op.Contents.MD = Meta;
return Op;
}
- const MachineOperand &operator=(const MachineOperand &MO) {
- contents = MO.contents;
- IsDef = MO.IsDef;
- IsImp = MO.IsImp;
- IsKill = MO.IsKill;
- IsDead = MO.IsDead;
- opType = MO.opType;
- auxInfo = MO.auxInfo;
- SubReg = MO.SubReg;
- ParentMI = MO.ParentMI;
- return *this;
+
+ static MachineOperand CreateMCSymbol(MCSymbol *Sym) {
+ MachineOperand Op(MachineOperand::MO_MCSymbol);
+ Op.Contents.Sym = Sym;
+ 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.
+ //===--------------------------------------------------------------------===//
+
+ /// isOnRegUseList - Return true if this operand is on a register use/def list
+ /// or false if not. This can only be called for register operands that are
+ /// part of a machine instruction.
+ bool isOnRegUseList() const {
+ assert(isReg() && "Can only add reg operand to use lists");
+ return Contents.Reg.Prev != nullptr;
+ }
};
-inline std::ostream &operator<<(std::ostream &OS, const MachineOperand &MO) {
- MO.print(OS, 0);
+inline raw_ostream &operator<<(raw_ostream &OS, const MachineOperand& MO) {
+ MO.print(OS, nullptr);
return OS;
}
+ // See friend declaration above. This additional declaration is required in
+ // order to compile LLVM with IBM xlC compiler.
+ hash_code hash_value(const MachineOperand &MO);
} // End llvm namespace
#endif
projects / oota-llvm.git / blobdiff