#include "llvm/InstrTypes.h"
#include "llvm/Method.h"
-#include <vector>
//===----------------------------------------------------------------------===//
-// PHINode Class
+// CastInst 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.
+// CastInst - This class represents a cast from Operand[0] to the type of
+// the instruction (i->getType()).
//
-// TODO: FIXME: This representation is not good enough. Consider the following
-// code:
-// BB0: %x = int %0
-// BB1: %y = int %1
-// BB2: %z = phi int %0, %1 - Can't tell where constants come from!
-//
-// TOFIX: Store pair<Use,BasicBlockUse> instead of just <Use>
-//
-class PHINode : public Instruction {
- vector<Use> IncomingValues;
- PHINode(const PHINode &PN);
+class CastInst : public Instruction {
+ CastInst(const CastInst &CI) : Instruction(CI.getType(), Cast) {
+ Operands.reserve(1);
+ Operands.push_back(Use(CI.Operands[0], this));
+ }
public:
- PHINode(const Type *Ty, const string &Name = "");
- inline ~PHINode() { dropAllReferences(); }
+ CastInst(Value *S, const Type *Ty, const std::string &Name = "")
+ : Instruction(Ty, Cast, Name) {
+ Operands.reserve(1);
+ Operands.push_back(Use(S, this));
+ }
- virtual Instruction *clone() const { return new PHINode(*this); }
+ virtual Instruction *clone() const { return new CastInst(*this); }
+ virtual const char *getOpcodeName() const { return "cast"; }
- // Implement all of the functionality required by User...
- //
- virtual void dropAllReferences();
- virtual const Value *getOperand(unsigned i) const {
- return (i < IncomingValues.size()) ? IncomingValues[i] : 0;
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const CastInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Cast;
}
- inline Value *getOperand(unsigned i) {
- return (Value*)((const PHINode*)this)->getOperand(i);
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
}
- virtual unsigned getNumOperands() const { return IncomingValues.size(); }
- virtual bool setOperand(unsigned i, Value *Val);
- virtual string getOpcode() const { return "phi"; }
-
- void addIncoming(Value *D);
};
class MethodArgument : public Value { // Defined in the InstrType.cpp file
Method *Parent;
- friend class ValueHolder<MethodArgument,Method>;
+ friend class ValueHolder<MethodArgument,Method,Method>;
inline void setParent(Method *parent) { Parent = parent; }
public:
- MethodArgument(const Type *Ty, const string &Name = "")
+ MethodArgument(const Type *Ty, const std::string &Name = "")
: Value(Ty, Value::MethodArgumentVal, Name) {
Parent = 0;
}
// Specialize setName to handle symbol table majik...
- virtual void setName(const string &name);
+ virtual void setName(const std::string &name, SymbolTable *ST = 0);
inline const Method *getParent() const { return Parent; }
inline Method *getParent() { return Parent; }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const MethodArgument *) { return true; }
+ static inline bool classof(const Value *V) {
+ return V->getValueType() == MethodArgumentVal;
+ }
};
//===----------------------------------------------------------------------===//
class CallInst : public Instruction {
- MethodUse M;
- vector<Use> Params;
CallInst(const CallInst &CI);
public:
- CallInst(Method *M, vector<Value*> ¶ms, const string &Name = "");
- inline ~CallInst() { dropAllReferences(); }
+ CallInst(Value *M, const std::vector<Value*> &Par, const std::string & = "");
- virtual string getOpcode() const { return "call"; }
+ 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 dyn_cast<Method>(Operands[0]);
+ }
+ Method *getCalledMethod() {
+ return dyn_cast<Method>(Operands[0]);
+ }
+
+ // getCalledValue - Get a pointer to a method that is invoked by this inst.
+ inline const Value *getCalledValue() const { return Operands[0]; }
+ inline Value *getCalledValue() { return Operands[0]; }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const CallInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Instruction::Call;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+};
+
- const Method *getCalledMethod() const { return M; }
- Method *getCalledMethod() { return M; }
+//===----------------------------------------------------------------------===//
+// ShiftInst Class
+//===----------------------------------------------------------------------===//
- // Implement all of the functionality required by Instruction...
- //
- virtual void dropAllReferences();
- virtual const Value *getOperand(unsigned i) const {
- return i == 0 ? M : ((i <= Params.size()) ? Params[i-1] : 0);
+// 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));
}
- inline Value *getOperand(unsigned i) {
- return (Value*)((const CallInst*)this)->getOperand(i);
+public:
+ ShiftInst(OtherOps Opcode, Value *S, Value *SA, const std::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));
+ }
+
+ OtherOps getOpcode() const { return (OtherOps)Instruction::getOpcode(); }
+
+ virtual Instruction *clone() const { return new ShiftInst(*this); }
+ virtual const char *getOpcodeName() const {
+ return getOpcode() == Shl ? "shl" : "shr";
}
- virtual unsigned getNumOperands() const { return Params.size()+1; }
- virtual bool setOperand(unsigned i, Value *Val);
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const ShiftInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return (I->getOpcode() == Instruction::Shr) |
+ (I->getOpcode() == Instruction::Shl);
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
};
#endif
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