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254 lines
9.1 KiB
C++
254 lines
9.1 KiB
C++
//===-- llvm/iOther.h - "Other" instruction node definitions ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declarations for instructions that fall into the
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// grandiose 'other' catagory...
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IOTHER_H
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#define LLVM_IOTHER_H
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#include "llvm/InstrTypes.h"
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namespace llvm {
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//===----------------------------------------------------------------------===//
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// CastInst Class
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//===----------------------------------------------------------------------===//
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/// CastInst - This class represents a cast from Operand[0] to the type of
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/// the instruction (i->getType()).
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///
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class CastInst : public Instruction {
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CastInst(const CastInst &CI) : Instruction(CI.getType(), Cast) {
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Operands.reserve(1);
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Operands.push_back(Use(CI.Operands[0], this));
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}
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public:
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CastInst(Value *S, const Type *Ty, const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: Instruction(Ty, Cast, Name, InsertBefore) {
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Operands.reserve(1);
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Operands.push_back(Use(S, this));
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}
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virtual Instruction *clone() const { return new CastInst(*this); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const CastInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == Cast;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// CallInst Class
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//===----------------------------------------------------------------------===//
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/// CallInst - This class represents a function call, abstracting a target
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/// machine's calling convention.
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///
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class CallInst : public Instruction {
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CallInst(const CallInst &CI);
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public:
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CallInst(Value *F, const std::vector<Value*> &Par,
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const std::string &Name = "", Instruction *InsertBefore = 0);
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// Alternate CallInst ctors w/ no actuals & one actual, respectively.
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CallInst(Value *F, const std::string &Name = "",
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Instruction *InsertBefore = 0);
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CallInst(Value *F, Value *Actual, const std::string& Name = "",
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Instruction *InsertBefore = 0);
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virtual Instruction *clone() const { return new CallInst(*this); }
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bool mayWriteToMemory() const { return true; }
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// FIXME: These methods should be inline once we eliminate
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// ConstantPointerRefs!
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const Function *getCalledFunction() const;
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Function *getCalledFunction();
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// getCalledValue - Get a pointer to a method that is invoked by this inst.
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inline const Value *getCalledValue() const { return Operands[0]; }
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inline Value *getCalledValue() { return Operands[0]; }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const CallInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == Instruction::Call;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// ShiftInst Class
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//===----------------------------------------------------------------------===//
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/// ShiftInst - This class represents left and right shift instructions.
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///
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class ShiftInst : public Instruction {
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ShiftInst(const ShiftInst &SI) : Instruction(SI.getType(), SI.getOpcode()) {
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Operands.reserve(2);
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Operands.push_back(Use(SI.Operands[0], this));
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Operands.push_back(Use(SI.Operands[1], this));
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}
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public:
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ShiftInst(OtherOps Opcode, Value *S, Value *SA, const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: Instruction(S->getType(), Opcode, Name, InsertBefore) {
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assert((Opcode == Shl || Opcode == Shr) && "ShiftInst Opcode invalid!");
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Operands.reserve(2);
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Operands.push_back(Use(S, this));
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Operands.push_back(Use(SA, this));
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}
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OtherOps getOpcode() const {
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return static_cast<OtherOps>(Instruction::getOpcode());
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}
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virtual Instruction *clone() const { return new ShiftInst(*this); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const ShiftInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return (I->getOpcode() == Instruction::Shr) |
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(I->getOpcode() == Instruction::Shl);
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// SelectInst Class
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//===----------------------------------------------------------------------===//
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/// SelectInst - This class represents the LLVM 'select' instruction.
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///
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class SelectInst : public Instruction {
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SelectInst(const SelectInst &SI) : Instruction(SI.getType(), SI.getOpcode()) {
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Operands.reserve(3);
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Operands.push_back(Use(SI.Operands[0], this));
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Operands.push_back(Use(SI.Operands[1], this));
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Operands.push_back(Use(SI.Operands[2], this));
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}
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public:
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SelectInst(Value *C, Value *S1, Value *S2, const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: Instruction(S1->getType(), Instruction::Select, Name, InsertBefore) {
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Operands.reserve(3);
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Operands.push_back(Use(C, this));
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Operands.push_back(Use(S1, this));
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Operands.push_back(Use(S2, this));
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}
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Value *getCondition() const { return Operands[0]; }
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Value *getTrueValue() const { return Operands[1]; }
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Value *getFalseValue() const { return Operands[2]; }
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OtherOps getOpcode() const {
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return static_cast<OtherOps>(Instruction::getOpcode());
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}
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virtual Instruction *clone() const { return new SelectInst(*this); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const SelectInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == Instruction::Select;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// VANextInst Class
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//===----------------------------------------------------------------------===//
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/// VANextInst - This class represents the va_next llvm instruction, which
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/// advances a vararg list passed an argument of the specified type, returning
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/// the resultant list.
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///
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class VANextInst : public Instruction {
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PATypeHolder ArgTy;
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VANextInst(const VANextInst &VAN)
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: Instruction(VAN.getType(), VANext), ArgTy(VAN.getArgType()) {
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Operands.reserve(1);
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Operands.push_back(Use(VAN.Operands[0], this));
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}
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public:
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VANextInst(Value *List, const Type *Ty, const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: Instruction(List->getType(), VANext, Name, InsertBefore), ArgTy(Ty) {
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Operands.reserve(1);
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Operands.push_back(Use(List, this));
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}
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const Type *getArgType() const { return ArgTy; }
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virtual Instruction *clone() const { return new VANextInst(*this); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const VANextInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == VANext;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// VAArgInst Class
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//===----------------------------------------------------------------------===//
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/// VAArgInst - This class represents the va_arg llvm instruction, which returns
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/// an argument of the specified type given a va_list.
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///
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class VAArgInst : public Instruction {
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VAArgInst(const VAArgInst &VAA)
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: Instruction(VAA.getType(), VAArg) {
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Operands.reserve(1);
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Operands.push_back(Use(VAA.Operands[0], this));
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}
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public:
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VAArgInst(Value *List, const Type *Ty, const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: Instruction(Ty, VAArg, Name, InsertBefore) {
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Operands.reserve(1);
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Operands.push_back(Use(List, this));
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}
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virtual Instruction *clone() const { return new VAArgInst(*this); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const VAArgInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == VAArg;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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} // End llvm namespace
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#endif
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