diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineInstr.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineInstr.h | 335 |
1 files changed, 1 insertions, 334 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index 91a6e1bd41..8e5ca5a4fc 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -16,349 +16,17 @@ #ifndef LLVM_CODEGEN_MACHINEINSTR_H #define LLVM_CODEGEN_MACHINEINSTR_H -#include "llvm/Support/DataTypes.h" -#include <vector> -#include <cassert> -#include <iosfwd> +#include "llvm/CodeGen/MachineOperand.h" namespace llvm { -class Value; -class Function; -class MachineBasicBlock; class TargetInstrDescriptor; class TargetMachine; -class GlobalValue; template <typename T> struct ilist_traits; template <typename T> struct ilist; //===----------------------------------------------------------------------===// -// class MachineOperand -// -// Representation of each machine instruction operand. -// -struct MachineOperand { - 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 - }; - -private: - union { - GlobalValue *GV; // For MO_GlobalAddress. - MachineBasicBlock *MBB; // For MO_MachineBasicBlock. - const char *SymbolName; // For MO_ExternalSymbol. - unsigned RegNo; // For MO_Register. - int64_t immedVal; // For MO_Immediate and MO_*Index. - } contents; - - 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. - - /// auxInfo - auxiliary information used by the MachineOperand - union { - /// offset - Offset to address of global or external, only valid for - /// MO_GlobalAddress, MO_ExternalSym and MO_ConstantPoolIndex - int offset; - - /// subReg - SubRegister number, only valid for MO_Register. A value of 0 - /// indicates the MO_Register has no subReg. - unsigned char subReg; - } auxInfo; - - MachineOperand() {} - - void print(std::ostream &os) const; - void print(std::ostream *os) const { if (os) print(*os); } - -public: - MachineOperand(const MachineOperand &M) { - *this = M; - } - - ~MachineOperand() {} - - /// getType - Returns the MachineOperandType for this operand. - /// - MachineOperandType getType() const { return opType; } - - /// Accessors that tell you what kind of MachineOperand you're looking at. - /// - 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; } - - int64_t getImm() const { - assert(isImmediate() && "Wrong MachineOperand accessor"); - return contents.immedVal; - } - - int64_t getImmedValue() const { - assert(isImmediate() && "Wrong MachineOperand accessor"); - return contents.immedVal; - } - MachineBasicBlock *getMBB() const { - assert(isMachineBasicBlock() && "Wrong MachineOperand accessor"); - return contents.MBB; - } - MachineBasicBlock *getMachineBasicBlock() const { - assert(isMachineBasicBlock() && "Wrong MachineOperand accessor"); - return contents.MBB; - } - void setMachineBasicBlock(MachineBasicBlock *MBB) { - assert(isMachineBasicBlock() && "Wrong MachineOperand accessor"); - contents.MBB = MBB; - } - int getFrameIndex() const { - assert(isFrameIndex() && "Wrong MachineOperand accessor"); - return (int)contents.immedVal; - } - unsigned getConstantPoolIndex() const { - assert(isConstantPoolIndex() && "Wrong MachineOperand accessor"); - return (unsigned)contents.immedVal; - } - unsigned getJumpTableIndex() const { - assert(isJumpTableIndex() && "Wrong MachineOperand accessor"); - return (unsigned)contents.immedVal; - } - GlobalValue *getGlobal() const { - assert(isGlobalAddress() && "Wrong MachineOperand accessor"); - return contents.GV; - } - int getOffset() const { - assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex()) && - "Wrong MachineOperand accessor"); - return auxInfo.offset; - } - unsigned getSubReg() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return (unsigned)auxInfo.subReg; - } - const char *getSymbolName() const { - assert(isExternalSymbol() && "Wrong MachineOperand accessor"); - return contents.SymbolName; - } - - bool isUse() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return !IsDef; - } - bool isDef() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsDef; - } - void setIsUse() { - assert(isRegister() && "Wrong MachineOperand accessor"); - IsDef = false; - } - void setIsDef() { - assert(isRegister() && "Wrong MachineOperand accessor"); - IsDef = true; - } - - bool isImplicit() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsImp; - } - void setImplicit() { - assert(isRegister() && "Wrong MachineOperand accessor"); - IsImp = true; - } - - bool isKill() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsKill; - } - bool isDead() const { - assert(isRegister() && "Wrong MachineOperand accessor"); - return IsDead; - } - void setIsKill() { - assert(isRegister() && !IsDef && "Wrong MachineOperand accessor"); - IsKill = true; - } - void setIsDead() { - assert(isRegister() && IsDef && "Wrong MachineOperand accessor"); - IsDead = true; - } - void unsetIsKill() { - assert(isRegister() && !IsDef && "Wrong MachineOperand accessor"); - IsKill = false; - } - void unsetIsDead() { - assert(isRegister() && IsDef && "Wrong MachineOperand accessor"); - IsDead = false; - } - - /// getReg - Returns the register number. - /// - unsigned getReg() const { - assert(isRegister() && "This is not a register operand!"); - return contents.RegNo; - } - - /// MachineOperand mutators. - /// - void setReg(unsigned Reg) { - assert(isRegister() && "This is not a register operand!"); - contents.RegNo = Reg; - } - - void setImmedValue(int64_t immVal) { - assert(isImmediate() && "Wrong MachineOperand mutator"); - contents.immedVal = immVal; - } - void setImm(int64_t immVal) { - assert(isImmediate() && "Wrong MachineOperand mutator"); - contents.immedVal = immVal; - } - - void setOffset(int Offset) { - assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex() || - isJumpTableIndex()) && - "Wrong MachineOperand accessor"); - auxInfo.offset = Offset; - } - void setSubReg(unsigned subReg) { - assert(isRegister() && "Wrong MachineOperand accessor"); - auxInfo.subReg = (unsigned char)subReg; - } - void setConstantPoolIndex(unsigned Idx) { - assert(isConstantPoolIndex() && "Wrong MachineOperand accessor"); - contents.immedVal = Idx; - } - void setJumpTableIndex(unsigned Idx) { - assert(isJumpTableIndex() && "Wrong MachineOperand accessor"); - contents.immedVal = Idx; - } - - /// 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 setImmedValue method should be used. - void ChangeToImmediate(int64_t ImmVal) { - opType = MO_Immediate; - contents.immedVal = 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) { - opType = MO_Register; - contents.RegNo = Reg; - IsDef = isDef; - IsImp = isImp; - IsKill = isKill; - IsDead = isDead; - } - - static MachineOperand CreateImm(int64_t Val) { - MachineOperand Op; - Op.opType = MachineOperand::MO_Immediate; - Op.contents.immedVal = Val; - Op.auxInfo.offset = 0; - 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; - Op.IsDef = isDef; - Op.IsImp = isImp; - Op.IsKill = isKill; - Op.IsDead = isDead; - Op.contents.RegNo = Reg; - Op.auxInfo.subReg = SubReg; - return Op; - } - static MachineOperand CreateMBB(MachineBasicBlock *MBB) { - MachineOperand Op; - Op.opType = MachineOperand::MO_MachineBasicBlock; - Op.contents.MBB = MBB; - Op.auxInfo.offset = 0; - return Op; - } - static MachineOperand CreateFI(unsigned Idx) { - MachineOperand Op; - Op.opType = MachineOperand::MO_FrameIndex; - Op.contents.immedVal = Idx; - Op.auxInfo.offset = 0; - return Op; - } - static MachineOperand CreateCPI(unsigned Idx, int Offset) { - MachineOperand Op; - Op.opType = MachineOperand::MO_ConstantPoolIndex; - Op.contents.immedVal = Idx; - Op.auxInfo.offset = Offset; - return Op; - } - static MachineOperand CreateJTI(unsigned Idx) { - MachineOperand Op; - Op.opType = MachineOperand::MO_JumpTableIndex; - Op.contents.immedVal = Idx; - Op.auxInfo.offset = 0; - return Op; - } - static MachineOperand CreateGA(GlobalValue *GV, int Offset) { - MachineOperand Op; - Op.opType = MachineOperand::MO_GlobalAddress; - Op.contents.GV = GV; - Op.auxInfo.offset = Offset; - 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; - 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; - return *this; - } - - friend std::ostream& operator<<(std::ostream& os, const MachineOperand& mop) { - mop.print(os); - return os; - } - - friend class MachineInstr; -}; - - -//===----------------------------------------------------------------------===// /// MachineInstr - Representation of each machine instruction. /// class MachineInstr { @@ -531,7 +199,6 @@ private: // Debugging Support std::ostream& operator<<(std::ostream &OS, const MachineInstr &MI); -std::ostream& operator<<(std::ostream &OS, const MachineOperand &MO); } // End llvm namespace |