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Diffstat (limited to 'include/llvm/iOther.h')
-rw-r--r-- | include/llvm/iOther.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/include/llvm/iOther.h b/include/llvm/iOther.h new file mode 100644 index 0000000000..4c06b4fdd8 --- /dev/null +++ b/include/llvm/iOther.h @@ -0,0 +1,116 @@ +//===-- 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. +// +// 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); +public: + PHINode(const Type *Ty, const string &Name = ""); + inline ~PHINode() { dropAllReferences(); } + + virtual Instruction *clone() const { return new PHINode(*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; + } + inline Value *getOperand(unsigned i) { + return (Value*)((const PHINode*)this)->getOperand(i); + } + 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 +//===----------------------------------------------------------------------===// + +class MethodArgument : public Value { // Defined in the InstrType.cpp file + Method *Parent; + + friend class ValueHolder<MethodArgument,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 { + MethodUse M; + vector<Use> Params; + CallInst(const CallInst &CI); +public: + CallInst(Method *M, vector<Value*> ¶ms, const string &Name = ""); + inline ~CallInst() { dropAllReferences(); } + + virtual string getOpcode() const { return "call"; } + + virtual Instruction *clone() const { return new CallInst(*this); } + bool hasSideEffects() const { return true; } + + + const Method *getCalledMethod() const { return M; } + Method *getCalledMethod() { return M; } + + // 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); + } + inline Value *getOperand(unsigned i) { + return (Value*)((const CallInst*)this)->getOperand(i); + } + virtual unsigned getNumOperands() const { return Params.size()+1; } + + virtual bool setOperand(unsigned i, Value *Val); +}; + +#endif |