-//===-- llvm/iOther.h - "Other" instruction node definitions -----*- C++ -*--=//
+//===-- llvm/iOther.h - "Other" instruction node definitions ----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file contains the declarations for instructions that fall into the
-// grandios 'other' catagory...
+// grandiose 'other' catagory...
//
//===----------------------------------------------------------------------===//
#define LLVM_IOTHER_H
#include "llvm/InstrTypes.h"
-#include "llvm/Method.h"
-#include <vector>
+
+namespace llvm {
//===----------------------------------------------------------------------===//
-// 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.
-//
-// 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);
+/// 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:
- PHINode(const Type *Ty, const string &Name = "");
- inline ~PHINode() { dropAllReferences(); }
+ CastInst(Value *S, const Type *Ty, const std::string &Name = "",
+ Instruction *InsertBefore = 0)
+ : Instruction(Ty, Cast, Name, InsertBefore) {
+ 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); }
- // 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);
};
//===----------------------------------------------------------------------===//
-// MethodArgument Class
+// CallInst Class
//===----------------------------------------------------------------------===//
-class MethodArgument : public Value { // Defined in the InstrType.cpp file
- Method *Parent;
+/// CallInst - This class represents a function call, abstracting a target
+/// machine's calling convention.
+///
+class CallInst : public Instruction {
+ CallInst(const CallInst &CI);
+public:
+ CallInst(Value *F, const std::vector<Value*> &Par,
+ const std::string &Name = "", Instruction *InsertBefore = 0);
+
+ // Alternate CallInst ctors w/ no actuals & one actual, respectively.
+ CallInst(Value *F, const std::string &Name = "",
+ Instruction *InsertBefore = 0);
+ CallInst(Value *F, Value *Actual, const std::string& Name = "",
+ Instruction *InsertBefore = 0);
+
+ virtual Instruction *clone() const { return new CallInst(*this); }
+ bool mayWriteToMemory() const { return true; }
+
+ // FIXME: These methods should be inline once we eliminate
+ // ConstantPointerRefs!
+ const Function *getCalledFunction() const;
+ Function *getCalledFunction();
- friend class ValueHolder<MethodArgument,Method>;
- inline void setParent(Method *parent) { Parent = parent; }
+ // 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));
+ }
+};
+
+
+//===----------------------------------------------------------------------===//
+// 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:
- MethodArgument(const Type *Ty, const string &Name = "")
- : Value(Ty, Value::MethodArgumentVal, Name) {
- Parent = 0;
+ ShiftInst(OtherOps Opcode, Value *S, Value *SA, const std::string &Name = "",
+ Instruction *InsertBefore = 0)
+ : Instruction(S->getType(), Opcode, Name, InsertBefore) {
+ assert((Opcode == Shl || Opcode == Shr) && "ShiftInst Opcode invalid!");
+ Operands.reserve(2);
+ Operands.push_back(Use(S, this));
+ Operands.push_back(Use(SA, this));
}
- // Specialize setName to handle symbol table majik...
- virtual void setName(const string &name);
+ OtherOps getOpcode() const {
+ return static_cast<OtherOps>(Instruction::getOpcode());
+ }
+
+ virtual Instruction *clone() const { return new ShiftInst(*this); }
- 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 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));
+ }
};
//===----------------------------------------------------------------------===//
-// Classes to function calls and method invocations
+// VANextInst Class
//===----------------------------------------------------------------------===//
-class CallInst : public Instruction {
- MethodUse M;
- vector<Use> Params;
- CallInst(const CallInst &CI);
+/// VANextInst - This class represents the va_next llvm instruction, which
+/// advances a vararg list passed an argument of the specified type, returning
+/// the resultant list.
+///
+class VANextInst : public Instruction {
+ PATypeHolder ArgTy;
+ VANextInst(const VANextInst &VAN)
+ : Instruction(VAN.getType(), VANext), ArgTy(VAN.getArgType()) {
+ Operands.reserve(1);
+ Operands.push_back(Use(VAN.Operands[0], this));
+ }
public:
- CallInst(Method *M, vector<Value*> ¶ms, const string &Name = "");
- inline ~CallInst() { dropAllReferences(); }
-
- virtual string getOpcode() const { return "call"; }
+ VANextInst(Value *List, const Type *Ty, const std::string &Name = "",
+ Instruction *InsertBefore = 0)
+ : Instruction(List->getType(), VANext, Name, InsertBefore), ArgTy(Ty) {
+ Operands.reserve(1);
+ Operands.push_back(Use(List, this));
+ }
- virtual Instruction *clone() const { return new CallInst(*this); }
- bool hasSideEffects() const { return true; }
+ const Type *getArgType() const { return ArgTy; }
+ virtual Instruction *clone() const { return new VANextInst(*this); }
- const Method *getCalledMethod() const { return M; }
- Method *getCalledMethod() { return M; }
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const VANextInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == VANext;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+};
- // 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);
+/// VAArgInst - This class represents the va_arg llvm instruction, which returns
+/// an argument of the specified type given a va_list.
+///
+class VAArgInst : public Instruction {
+ VAArgInst(const VAArgInst &VAA)
+ : Instruction(VAA.getType(), VAArg) {
+ Operands.reserve(1);
+ Operands.push_back(Use(VAA.Operands[0], this));
}
- inline Value *getOperand(unsigned i) {
- return (Value*)((const CallInst*)this)->getOperand(i);
+public:
+ VAArgInst(Value *List, const Type *Ty, const std::string &Name = "",
+ Instruction *InsertBefore = 0)
+ : Instruction(Ty, VAArg, Name, InsertBefore) {
+ Operands.reserve(1);
+ Operands.push_back(Use(List, this));
}
- virtual unsigned getNumOperands() const { return Params.size()+1; }
- virtual bool setOperand(unsigned i, Value *Val);
+ virtual Instruction *clone() const { return new VAArgInst(*this); }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const VAArgInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == VAArg;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
};
+} // End llvm namespace
+
#endif
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