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//===-- 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"
#include <vector>
//===----------------------------------------------------------------------===//
// 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];
}
// 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(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<MethodArgument,Method,Method>;
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);
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, vector<Value*> ¶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 &CI) : Instruction(CI.getType(), CI.getOpcode()) {
Operands.reserve(2);
Operands.push_back(Use(Operands[0], this));
Operands.push_back(Use(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
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