//===-- llvm/iOther.h - "Other" instruction node definitions -----*- C++ -*--=// // // This file contains the declarations for instructions that fall into the // grandios 'other' catagory... // //===----------------------------------------------------------------------===// #ifndef LLVM_IOTHER_H #define LLVM_IOTHER_H #include "llvm/InstrTypes.h" #include "llvm/Method.h" //===----------------------------------------------------------------------===// // PHINode Class //===----------------------------------------------------------------------===// // PHINode - The PHINode class is used to represent the magical mystical PHI // node, that can not exist in nature, but can be synthesized in a computer // scientist's overactive imagination. // class PHINode : public Instruction { PHINode(const PHINode &PN); public: PHINode(const Type *Ty, const string &Name = ""); virtual Instruction *clone() const { return new PHINode(*this); } virtual const char *getOpcodeName() const { return "phi"; } // getNumIncomingValues - Return the number of incoming edges the PHI node has inline unsigned getNumIncomingValues() const { return Operands.size()/2; } // getIncomingValue - Return incoming value #x inline const Value *getIncomingValue(unsigned i) const { return Operands[i*2]; } inline Value *getIncomingValue(unsigned i) { return Operands[i*2]; } inline void setIncomingValue(unsigned i, Value *V) { Operands[i*2] = V; } // getIncomingBlock - Return incoming basic block #x inline const BasicBlock *getIncomingBlock(unsigned i) const { return Operands[i*2+1]->castBasicBlockAsserting(); } inline BasicBlock *getIncomingBlock(unsigned i) { return Operands[i*2+1]->castBasicBlockAsserting(); } // addIncoming - Add an incoming value to the end of the PHI list void addIncoming(Value *D, BasicBlock *BB); // removeIncomingValue - Remove an incoming value. This is useful if a // predecessor basic block is deleted. The value removed is returned. Value *removeIncomingValue(const BasicBlock *BB); }; //===----------------------------------------------------------------------===// // CastInst Class //===----------------------------------------------------------------------===// // CastInst - This class represents a cast from Operand[0] to the type of // the instruction (i->getType()). // class CastInst : public Instruction { CastInst(const CastInst &CI) : Instruction(CI.getType(), Cast) { Operands.reserve(1); Operands.push_back(Use(CI.Operands[0], this)); } public: CastInst(Value *S, const Type *Ty, const string &Name = "") : Instruction(Ty, Cast, Name) { Operands.reserve(1); Operands.push_back(Use(S, this)); } virtual Instruction *clone() const { return new CastInst(*this); } virtual const char *getOpcodeName() const { return "cast"; } }; //===----------------------------------------------------------------------===// // MethodArgument Class //===----------------------------------------------------------------------===// class MethodArgument : public Value { // Defined in the InstrType.cpp file Method *Parent; friend class ValueHolder; inline void setParent(Method *parent) { Parent = parent; } public: MethodArgument(const Type *Ty, const string &Name = "") : Value(Ty, Value::MethodArgumentVal, Name) { Parent = 0; } // Specialize setName to handle symbol table majik... virtual void setName(const string &name, SymbolTable *ST = 0); inline const Method *getParent() const { return Parent; } inline Method *getParent() { return Parent; } }; //===----------------------------------------------------------------------===// // Classes to function calls and method invocations //===----------------------------------------------------------------------===// class CallInst : public Instruction { CallInst(const CallInst &CI); public: CallInst(Method *M, const vector ¶ms, const string &Name = ""); virtual const char *getOpcodeName() const { return "call"; } virtual Instruction *clone() const { return new CallInst(*this); } bool hasSideEffects() const { return true; } const Method *getCalledMethod() const { return Operands[0]->castMethodAsserting(); } Method *getCalledMethod() { return Operands[0]->castMethodAsserting(); } }; //===----------------------------------------------------------------------===// // ShiftInst Class //===----------------------------------------------------------------------===// // ShiftInst - This class represents left and right shift instructions. // class ShiftInst : public Instruction { ShiftInst(const ShiftInst &SI) : Instruction(SI.getType(), SI.getOpcode()) { Operands.reserve(2); Operands.push_back(Use(SI.Operands[0], this)); Operands.push_back(Use(SI.Operands[1], this)); } public: ShiftInst(OtherOps Opcode, Value *S, Value *SA, const string &Name = "") : Instruction(S->getType(), Opcode, Name) { assert((Opcode == Shl || Opcode == Shr) && "ShiftInst Opcode invalid!"); Operands.reserve(2); Operands.push_back(Use(S, this)); Operands.push_back(Use(SA, this)); } virtual Instruction *clone() const { return new ShiftInst(*this); } virtual const char *getOpcodeName() const { return getOpcode() == Shl ? "shl" : "shr"; } }; #endif