//
//===----------------------------------------------------------------------===//
+#include "llvm/GlobalValue.h"
+#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Constants.h"
-#include "llvm/GlobalVariable.h"
-#include "llvm/GlobalAlias.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/GlobalAlias.h"
+#include "llvm/GlobalVariable.h"
#include "llvm/Module.h"
-#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/LeakDetector.h"
using namespace llvm;
Alignment = Log2_32(Align) + 1;
assert(getAlignment() == Align && "Alignment representation error!");
}
+
+bool GlobalValue::isDeclaration() const {
+ // Globals are definitions if they have an initializer.
+ if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(this))
+ return GV->getNumOperands() == 0;
+
+ // Functions are definitions if they have a body.
+ if (const Function *F = dyn_cast<Function>(this))
+ return F->empty();
+
+ // Aliases are always definitions.
+ assert(isa<GlobalAlias>(this));
+ return false;
+}
//===----------------------------------------------------------------------===//
// GlobalVariable Implementation
//===----------------------------------------------------------------------===//
-GlobalVariable::GlobalVariable(const Type *Ty, bool constant, LinkageTypes Link,
+GlobalVariable::GlobalVariable(Type *Ty, bool constant, LinkageTypes Link,
Constant *InitVal, const Twine &Name,
- bool ThreadLocal, unsigned AddressSpace)
- : GlobalValue(PointerType::get(Ty, AddressSpace),
+ ThreadLocalMode TLMode, unsigned AddressSpace)
+ : GlobalValue(PointerType::get(Ty, AddressSpace),
Value::GlobalVariableVal,
OperandTraits<GlobalVariable>::op_begin(this),
InitVal != 0, Link, Name),
- isConstantGlobal(constant), isThreadLocalSymbol(ThreadLocal) {
+ isConstantGlobal(constant), threadLocalMode(TLMode) {
if (InitVal) {
assert(InitVal->getType() == Ty &&
"Initializer should be the same type as the GlobalVariable!");
LeakDetector::addGarbageObject(this);
}
-GlobalVariable::GlobalVariable(Module &M, const Type *Ty, bool constant,
+GlobalVariable::GlobalVariable(Module &M, Type *Ty, bool constant,
LinkageTypes Link, Constant *InitVal,
const Twine &Name,
- GlobalVariable *Before, bool ThreadLocal,
+ GlobalVariable *Before, ThreadLocalMode TLMode,
unsigned AddressSpace)
- : GlobalValue(PointerType::get(Ty, AddressSpace),
+ : GlobalValue(PointerType::get(Ty, AddressSpace),
Value::GlobalVariableVal,
OperandTraits<GlobalVariable>::op_begin(this),
InitVal != 0, Link, Name),
- isConstantGlobal(constant), isThreadLocalSymbol(ThreadLocal) {
+ isConstantGlobal(constant), threadLocalMode(TLMode) {
if (InitVal) {
assert(InitVal->getType() == Ty &&
"Initializer should be the same type as the GlobalVariable!");
// GlobalAlias Implementation
//===----------------------------------------------------------------------===//
-GlobalAlias::GlobalAlias(const Type *Ty, LinkageTypes Link,
+GlobalAlias::GlobalAlias(Type *Ty, LinkageTypes Link,
const Twine &Name, Constant* aliasee,
Module *ParentModule)
: GlobalValue(Ty, Value::GlobalAliasVal, &Op<0>(), 1, Link, Name) {
getParent()->getAliasList().erase(this);
}
-bool GlobalAlias::isDeclaration() const {
- const GlobalValue* AV = getAliasedGlobal();
- if (AV)
- return AV->isDeclaration();
- else
- return false;
-}
-
void GlobalAlias::setAliasee(Constant *Aliasee) {
assert((!Aliasee || Aliasee->getType() == getType()) &&
"Alias and aliasee types should match!");
CE->getOpcode() == Instruction::GetElementPtr) &&
"Unsupported aliasee");
- return dyn_cast<GlobalValue>(CE->getOperand(0));
+ return cast<GlobalValue>(CE->getOperand(0));
}
const GlobalValue *GlobalAlias::resolveAliasedGlobal(bool stopOnWeak) const {