#ifndef LLVM_GLOBALVALUE_H
#define LLVM_GLOBALVALUE_H
#include "llvm/Constant.h"
namespace llvm {
class PointerType;
class Module;
class GlobalValue : public Constant {
GlobalValue(const GlobalValue &); public:
enum LinkageTypes {
ExternalLinkage = 0, AvailableExternallyLinkage, LinkOnceAnyLinkage, LinkOnceODRLinkage, WeakAnyLinkage, WeakODRLinkage, AppendingLinkage, InternalLinkage, PrivateLinkage, LinkerPrivateLinkage, LinkerPrivateWeakLinkage, DLLImportLinkage, DLLExportLinkage, ExternalWeakLinkage, CommonLinkage };
enum VisibilityTypes {
DefaultVisibility = 0, HiddenVisibility, ProtectedVisibility };
protected:
GlobalValue(const Type *ty, ValueTy vty, Use *Ops, unsigned NumOps,
LinkageTypes linkage, const Twine &Name)
: Constant(ty, vty, Ops, NumOps), Parent(0),
Linkage(linkage), Visibility(DefaultVisibility), Alignment(0) {
setName(Name);
}
Module *Parent;
LinkageTypes Linkage : 5; unsigned Visibility : 2; unsigned Alignment : 16; std::string Section; public:
~GlobalValue() {
removeDeadConstantUsers(); }
unsigned getAlignment() const { return Alignment; }
void setAlignment(unsigned Align) {
assert((Align & (Align-1)) == 0 && "Alignment is not a power of 2!");
Alignment = Align;
}
VisibilityTypes getVisibility() const { return VisibilityTypes(Visibility); }
bool hasDefaultVisibility() const { return Visibility == DefaultVisibility; }
bool hasHiddenVisibility() const { return Visibility == HiddenVisibility; }
bool hasProtectedVisibility() const {
return Visibility == ProtectedVisibility;
}
void setVisibility(VisibilityTypes V) { Visibility = V; }
bool hasSection() const { return !Section.empty(); }
const std::string &getSection() const { return Section; }
void setSection(StringRef S) { Section = S; }
bool use_empty_except_constants();
inline const PointerType *getType() const {
return reinterpret_cast<const PointerType*>(User::getType());
}
static LinkageTypes getLinkOnceLinkage(bool ODR) {
return ODR ? LinkOnceODRLinkage : LinkOnceAnyLinkage;
}
static LinkageTypes getWeakLinkage(bool ODR) {
return ODR ? WeakODRLinkage : WeakAnyLinkage;
}
static bool isExternalLinkage(LinkageTypes Linkage) {
return Linkage == ExternalLinkage;
}
static bool isAvailableExternallyLinkage(LinkageTypes Linkage) {
return Linkage == AvailableExternallyLinkage;
}
static bool isLinkOnceLinkage(LinkageTypes Linkage) {
return Linkage == LinkOnceAnyLinkage || Linkage == LinkOnceODRLinkage;
}
static bool isWeakLinkage(LinkageTypes Linkage) {
return Linkage == WeakAnyLinkage || Linkage == WeakODRLinkage;
}
static bool isAppendingLinkage(LinkageTypes Linkage) {
return Linkage == AppendingLinkage;
}
static bool isInternalLinkage(LinkageTypes Linkage) {
return Linkage == InternalLinkage;
}
static bool isPrivateLinkage(LinkageTypes Linkage) {
return Linkage == PrivateLinkage;
}
static bool isLinkerPrivateLinkage(LinkageTypes Linkage) {
return Linkage == LinkerPrivateLinkage;
}
static bool isLinkerPrivateWeakLinkage(LinkageTypes Linkage) {
return Linkage == LinkerPrivateWeakLinkage;
}
static bool isLocalLinkage(LinkageTypes Linkage) {
return isInternalLinkage(Linkage) || isPrivateLinkage(Linkage) ||
isLinkerPrivateLinkage(Linkage) || isLinkerPrivateWeakLinkage(Linkage);
}
static bool isDLLImportLinkage(LinkageTypes Linkage) {
return Linkage == DLLImportLinkage;
}
static bool isDLLExportLinkage(LinkageTypes Linkage) {
return Linkage == DLLExportLinkage;
}
static bool isExternalWeakLinkage(LinkageTypes Linkage) {
return Linkage == ExternalWeakLinkage;
}
static bool isCommonLinkage(LinkageTypes Linkage) {
return Linkage == CommonLinkage;
}
static bool mayBeOverridden(LinkageTypes Linkage) {
return (Linkage == WeakAnyLinkage ||
Linkage == LinkOnceAnyLinkage ||
Linkage == CommonLinkage ||
Linkage == ExternalWeakLinkage ||
Linkage == LinkerPrivateWeakLinkage);
}
static bool isWeakForLinker(LinkageTypes Linkage) {
return (Linkage == AvailableExternallyLinkage ||
Linkage == WeakAnyLinkage ||
Linkage == WeakODRLinkage ||
Linkage == LinkOnceAnyLinkage ||
Linkage == LinkOnceODRLinkage ||
Linkage == CommonLinkage ||
Linkage == ExternalWeakLinkage ||
Linkage == LinkerPrivateWeakLinkage);
}
bool hasExternalLinkage() const { return isExternalLinkage(Linkage); }
bool hasAvailableExternallyLinkage() const {
return isAvailableExternallyLinkage(Linkage);
}
bool hasLinkOnceLinkage() const {
return isLinkOnceLinkage(Linkage);
}
bool hasWeakLinkage() const {
return isWeakLinkage(Linkage);
}
bool hasAppendingLinkage() const { return isAppendingLinkage(Linkage); }
bool hasInternalLinkage() const { return isInternalLinkage(Linkage); }
bool hasPrivateLinkage() const { return isPrivateLinkage(Linkage); }
bool hasLinkerPrivateLinkage() const { return isLinkerPrivateLinkage(Linkage); }
bool hasLinkerPrivateWeakLinkage() const {
return isLinkerPrivateWeakLinkage(Linkage);
}
bool hasLocalLinkage() const { return isLocalLinkage(Linkage); }
bool hasDLLImportLinkage() const { return isDLLImportLinkage(Linkage); }
bool hasDLLExportLinkage() const { return isDLLExportLinkage(Linkage); }
bool hasExternalWeakLinkage() const { return isExternalWeakLinkage(Linkage); }
bool hasCommonLinkage() const { return isCommonLinkage(Linkage); }
void setLinkage(LinkageTypes LT) { Linkage = LT; }
LinkageTypes getLinkage() const { return Linkage; }
bool mayBeOverridden() const { return mayBeOverridden(Linkage); }
bool isWeakForLinker() const { return isWeakForLinker(Linkage); }
virtual void copyAttributesFrom(const GlobalValue *Src);
bool isMaterializable() const;
bool hasNotBeenReadFromBitcode() const { return isMaterializable(); }
bool isDematerializable() const;
bool Materialize(std::string *ErrInfo = 0);
void Dematerialize();
virtual bool isNullValue() const { return false; }
virtual void destroyConstant();
virtual bool isDeclaration() const = 0;
virtual void removeFromParent() = 0;
virtual void eraseFromParent() = 0;
inline Module *getParent() { return Parent; }
inline const Module *getParent() const { return Parent; }
void removeDeadConstantUsers() const;
static inline bool classof(const GlobalValue *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueID() == Value::FunctionVal ||
V->getValueID() == Value::GlobalVariableVal ||
V->getValueID() == Value::GlobalAliasVal;
}
};
}
#endif