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Diffstat (limited to 'release_23/include/llvm/CodeGen/MachineOperand.h')
| -rw-r--r-- | release_23/include/llvm/CodeGen/MachineOperand.h | 431 |
1 files changed, 0 insertions, 431 deletions
diff --git a/release_23/include/llvm/CodeGen/MachineOperand.h b/release_23/include/llvm/CodeGen/MachineOperand.h deleted file mode 100644 index d62c8f8b4749..000000000000 --- a/release_23/include/llvm/CodeGen/MachineOperand.h +++ /dev/null @@ -1,431 +0,0 @@ -//===-- llvm/CodeGen/MachineOperand.h - MachineOperand class ----*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file contains the declaration of the MachineOperand class. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CODEGEN_MACHINEOPERAND_H -#define LLVM_CODEGEN_MACHINEOPERAND_H - -#include "llvm/Support/DataTypes.h" -#include <vector> -#include <cassert> -#include <iosfwd> - -namespace llvm { - -class ConstantFP; -class MachineBasicBlock; -class GlobalValue; -class MachineInstr; -class TargetMachine; -class MachineRegisterInfo; - -/// MachineOperand class - Representation of each machine instruction operand. -/// -class MachineOperand { -public: - enum MachineOperandType { - MO_Register, // Register operand. - MO_Immediate, // Immediate Operand - MO_FPImmediate, - 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 - }; - -private: - /// OpKind - Specify what kind of operand this is. This discriminates the - /// union. - MachineOperandType OpKind : 8; - - /// 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; - - /// SubReg - Subregister number, only valid for MO_Register. A value of 0 - /// indicates the MO_Register has no subReg. - unsigned char SubReg; - - /// 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; - - /// Contents union - This contains the payload for the various operand types. - union { - MachineBasicBlock *MBB; // For MO_MachineBasicBlock. - ConstantFP *CFP; // For MO_FPImmediate. - int64_t ImmVal; // For MO_Immediate. - - struct { // For MO_Register. - unsigned RegNo; - MachineOperand **Prev; // Access list for register. - MachineOperand *Next; - } Reg; - - /// 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. - GlobalValue *GV; // For MO_GlobalAddress. - } Val; - int Offset; // An offset from the object. - } OffsetedInfo; - } Contents; - - explicit MachineOperand(MachineOperandType K) : OpKind(K), ParentMI(0) {} -public: - MachineOperand(const MachineOperand &M) { - *this = M; - } - - ~MachineOperand() {} - - /// getType - Returns the MachineOperandType for this operand. - /// - MachineOperandType getType() const { return OpKind; } - - /// 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. - /// - bool isRegister() const { return OpKind == MO_Register; } - bool isImmediate() const { return OpKind == MO_Immediate; } - bool isFPImmediate() const { return OpKind == MO_FPImmediate; } - bool isMachineBasicBlock() const { return OpKind == MO_MachineBasicBlock; } - bool isFrameIndex() const { return OpKind == MO_FrameIndex; } - bool isConstantPoolIndex() const { return OpKind == MO_ConstantPoolIndex; } - bool isJumpTableIndex() const { return OpKind == MO_JumpTableIndex; } - bool isGlobalAddress() const { return OpKind == MO_GlobalAddress; } - bool isExternalSymbol() const { return OpKind == MO_ExternalSymbol; } - - bool isReg() const { return OpKind == MO_Register; } - bool isImm() const { return OpKind == MO_Immediate; } - bool isMBB() const { return OpKind == MO_MachineBasicBlock; } - bool isFI() const { return OpKind == MO_FrameIndex; } - bool isCPI() const { return OpKind == MO_ConstantPoolIndex; } - bool isJTI() const { return OpKind == MO_JumpTableIndex; } - bool isGlobal() const { return OpKind == MO_GlobalAddress; } - bool isSymbol() const { return OpKind == MO_ExternalSymbol; } - - //===--------------------------------------------------------------------===// - // Accessors for Register Operands - //===--------------------------------------------------------------------===// - - /// getReg - Returns the register number. - unsigned getReg() const { - assert(isRegister() && "This is not a register operand!"); - return Contents.Reg.RegNo; - } - - unsigned getSubReg() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return (unsigned)SubReg; - } - - bool isUse() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return !IsDef; - } - - bool isDef() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsDef; - } - - bool isImplicit() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsImp; - } - - bool isDead() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsDead; - } - - bool isKill() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsKill; - } - - /// getNextOperandForReg - Return the next MachineOperand in the function that - /// uses or defines this register. - MachineOperand *getNextOperandForReg() const { - assert(isRegister() && "This is not a register operand!"); - return Contents.Reg.Next; - } - - //===--------------------------------------------------------------------===// - // Mutators for Register Operands - //===--------------------------------------------------------------------===// - - /// 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; - } - - void setImplicit(bool Val = true) { - assert(isRegister() && "Wrong MachineOperand accessor"); - IsImp = Val; - } - - void setIsKill(bool Val = true) { - assert(isRegister() && !IsDef && "Wrong MachineOperand accessor"); - IsKill = Val; - } - - void setIsDead(bool Val = true) { - assert(isRegister() && IsDef && "Wrong MachineOperand accessor"); - IsDead = Val; - } - - - //===--------------------------------------------------------------------===// - // Accessors for various operand types. - //===--------------------------------------------------------------------===// - - int64_t getImm() const { - assert(isImmediate() && "Wrong MachineOperand accessor"); - return Contents.ImmVal; - } - - ConstantFP *getFPImm() const { - assert(isFPImmediate() && "Wrong MachineOperand accessor"); - return Contents.CFP; - } - - MachineBasicBlock *getMBB() const { - assert(isMachineBasicBlock() && "Wrong MachineOperand accessor"); - return Contents.MBB; - } - - int getIndex() const { - assert((isFrameIndex() || isConstantPoolIndex() || isJumpTableIndex()) && - "Wrong MachineOperand accessor"); - return Contents.OffsetedInfo.Val.Index; - } - - GlobalValue *getGlobal() const { - assert(isGlobalAddress() && "Wrong MachineOperand accessor"); - return Contents.OffsetedInfo.Val.GV; - } - - int getOffset() const { - assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex()) && - "Wrong MachineOperand accessor"); - return Contents.OffsetedInfo.Offset; - } - - const char *getSymbolName() const { - assert(isExternalSymbol() && "Wrong MachineOperand accessor"); - return Contents.OffsetedInfo.Val.SymbolName; - } - - //===--------------------------------------------------------------------===// - // Mutators for various operand types. - //===--------------------------------------------------------------------===// - - void setImm(int64_t immVal) { - assert(isImmediate() && "Wrong MachineOperand mutator"); - Contents.ImmVal = immVal; - } - - void setOffset(int Offset) { - assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex()) && - "Wrong MachineOperand accessor"); - Contents.OffsetedInfo.Offset = Offset; - } - - void setIndex(int Idx) { - assert((isFrameIndex() || isConstantPoolIndex() || isJumpTableIndex()) && - "Wrong MachineOperand accessor"); - Contents.OffsetedInfo.Val.Index = Idx; - } - - void setMBB(MachineBasicBlock *MBB) { - assert(isMachineBasicBlock() && "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; - - /// 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); - - /// 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); - - //===--------------------------------------------------------------------===// - // Construction methods. - //===--------------------------------------------------------------------===// - - static MachineOperand CreateImm(int64_t Val) { - MachineOperand Op(MachineOperand::MO_Immediate); - Op.setImm(Val); - return Op; - } - - static MachineOperand CreateFPImm(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(MachineOperand::MO_Register); - Op.IsDef = isDef; - Op.IsImp = isImp; - Op.IsKill = isKill; - Op.IsDead = isDead; - Op.Contents.Reg.RegNo = Reg; - Op.Contents.Reg.Prev = 0; - Op.Contents.Reg.Next = 0; - Op.SubReg = SubReg; - return Op; - } - static MachineOperand CreateMBB(MachineBasicBlock *MBB) { - MachineOperand Op(MachineOperand::MO_MachineBasicBlock); - Op.setMBB(MBB); - return Op; - } - static MachineOperand CreateFI(unsigned Idx) { - MachineOperand Op(MachineOperand::MO_FrameIndex); - Op.setIndex(Idx); - return Op; - } - static MachineOperand CreateCPI(unsigned Idx, int Offset) { - MachineOperand Op(MachineOperand::MO_ConstantPoolIndex); - Op.setIndex(Idx); - Op.setOffset(Offset); - return Op; - } - static MachineOperand CreateJTI(unsigned Idx) { - MachineOperand Op(MachineOperand::MO_JumpTableIndex); - Op.setIndex(Idx); - return Op; - } - static MachineOperand CreateGA(GlobalValue *GV, int Offset) { - MachineOperand Op(MachineOperand::MO_GlobalAddress); - Op.Contents.OffsetedInfo.Val.GV = GV; - Op.setOffset(Offset); - return Op; - } - static MachineOperand CreateES(const char *SymName, int Offset = 0) { - MachineOperand Op(MachineOperand::MO_ExternalSymbol); - Op.Contents.OffsetedInfo.Val.SymbolName = SymName; - Op.setOffset(Offset); - return Op; - } - const MachineOperand &operator=(const MachineOperand &MO) { - OpKind = MO.OpKind; - IsDef = MO.IsDef; - IsImp = MO.IsImp; - IsKill = MO.IsKill; - IsDead = MO.IsDead; - SubReg = MO.SubReg; - ParentMI = MO.ParentMI; - Contents = MO.Contents; - return *this; - } - - friend class MachineInstr; - friend class MachineRegisterInfo; -private: - //===--------------------------------------------------------------------===// - // 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 != 0; - } - - /// AddRegOperandToRegInfo - Add this register operand to the specified - /// MachineRegisterInfo. If it is null, then the next/prev fields should be - /// explicitly nulled out. - void AddRegOperandToRegInfo(MachineRegisterInfo *RegInfo); - - void RemoveRegOperandFromRegInfo() { - assert(isOnRegUseList() && "Can only add reg operand to use lists"); - // Unlink this from the doubly linked list of operands. - MachineOperand *NextOp = Contents.Reg.Next; - *Contents.Reg.Prev = NextOp; - if (NextOp) { - assert(NextOp->getReg() == getReg() && "Corrupt reg use/def chain!"); - NextOp->Contents.Reg.Prev = Contents.Reg.Prev; - } - Contents.Reg.Prev = 0; - Contents.Reg.Next = 0; - } -}; - -inline std::ostream &operator<<(std::ostream &OS, const MachineOperand &MO) { - MO.print(OS, 0); - return OS; -} - -} // End llvm namespace - -#endif |