#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalVariable.h"
-#include "llvm/IR/LeakDetector.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
#include "llvm/Support/ErrorHandling.h"
//===----------------------------------------------------------------------===//
bool GlobalValue::isMaterializable() const {
- return getParent() && getParent()->isMaterializable(this);
+ if (const Function *F = dyn_cast<Function>(this))
+ return F->isMaterializable();
+ return false;
}
bool GlobalValue::isDematerializable() const {
return getParent() && getParent()->isDematerializable(this);
}
-bool GlobalValue::Materialize(std::string *ErrInfo) {
- return getParent()->Materialize(this, ErrInfo);
+std::error_code GlobalValue::materialize() {
+ return getParent()->materialize(this);
}
-void GlobalValue::Dematerialize() {
- getParent()->Dematerialize(this);
+void GlobalValue::dematerialize() {
+ getParent()->dematerialize(this);
}
-const DataLayout *GlobalValue::getDataLayout() const {
- return getParent()->getDataLayout();
+/// Override destroyConstantImpl to make sure it doesn't get called on
+/// GlobalValue's because they shouldn't be treated like other constants.
+void GlobalValue::destroyConstantImpl() {
+ llvm_unreachable("You can't GV->destroyConstantImpl()!");
}
-/// Override destroyConstant to make sure it doesn't get called on
-/// GlobalValue's because they shouldn't be treated like other constants.
-void GlobalValue::destroyConstant() {
- llvm_unreachable("You can't GV->destroyConstant()!");
+Value *GlobalValue::handleOperandChangeImpl(Value *From, Value *To, Use *U) {
+ llvm_unreachable("Unsupported class for handleOperandChange()!");
}
/// copyAttributesFrom - copy all additional attributes (those not needed to
assert((Align & (Align-1)) == 0 && "Alignment is not a power of 2!");
assert(Align <= MaximumAlignment &&
"Alignment is greater than MaximumAlignment!");
- setGlobalValueSubClassData(Log2_32(Align) + 1);
+ unsigned AlignmentData = Log2_32(Align) + 1;
+ unsigned OldData = getGlobalValueSubClassData();
+ setGlobalValueSubClassData((OldData & ~AlignmentMask) | AlignmentData);
assert(getAlignment() == Align && "Alignment representation error!");
}
+unsigned GlobalObject::getGlobalObjectSubClassData() const {
+ unsigned ValueData = getGlobalValueSubClassData();
+ return ValueData >> AlignmentBits;
+}
+
+void GlobalObject::setGlobalObjectSubClassData(unsigned Val) {
+ unsigned OldData = getGlobalValueSubClassData();
+ setGlobalValueSubClassData((OldData & AlignmentMask) |
+ (Val << AlignmentBits));
+ assert(getGlobalObjectSubClassData() == Val && "representation error");
+}
+
void GlobalObject::copyAttributesFrom(const GlobalValue *Src) {
const auto *GV = cast<GlobalObject>(Src);
GlobalValue::copyAttributesFrom(GV);
// Functions are definitions if they have a body.
if (const Function *F = dyn_cast<Function>(this))
- return F->empty();
+ return F->empty() && !F->isMaterializable();
// Aliases are always definitions.
assert(isa<GlobalAlias>(this));
"Initializer should be the same type as the GlobalVariable!");
Op<0>() = InitVal;
}
-
- LeakDetector::addGarbageObject(this);
}
GlobalVariable::GlobalVariable(Module &M, Type *Ty, bool constant,
Op<0>() = InitVal;
}
- LeakDetector::addGarbageObject(this);
-
if (Before)
Before->getParent()->getGlobalList().insert(Before, this);
else
}
void GlobalVariable::setParent(Module *parent) {
- if (getParent())
- LeakDetector::addGarbageObject(this);
Parent = parent;
- if (getParent())
- LeakDetector::removeGarbageObject(this);
}
void GlobalVariable::removeFromParent() {
getParent()->getGlobalList().erase(this);
}
-void GlobalVariable::replaceUsesOfWithOnConstant(Value *From, Value *To,
- Use *U) {
- // If you call this, then you better know this GVar has a constant
- // initializer worth replacing. Enforce that here.
- assert(getNumOperands() == 1 &&
- "Attempt to replace uses of Constants on a GVar with no initializer");
-
- // And, since you know it has an initializer, the From value better be
- // the initializer :)
- assert(getOperand(0) == From &&
- "Attempt to replace wrong constant initializer in GVar");
-
- // And, you better have a constant for the replacement value
- assert(isa<Constant>(To) &&
- "Attempt to replace GVar initializer with non-constant");
-
- // Okay, preconditions out of the way, replace the constant initializer.
- this->setOperand(0, cast<Constant>(To));
-}
-
void GlobalVariable::setInitializer(Constant *InitVal) {
if (!InitVal) {
if (hasInitializer()) {
+ // Note, the num operands is used to compute the offset of the operand, so
+ // the order here matters. Clearing the operand then clearing the num
+ // operands ensures we have the correct offset to the operand.
Op<0>().set(nullptr);
- NumOperands = 0;
+ setGlobalVariableNumOperands(0);
}
} else {
assert(InitVal->getType() == getType()->getElementType() &&
"Initializer type must match GlobalVariable type");
+ // Note, the num operands is used to compute the offset of the operand, so
+ // the order here matters. We need to set num operands to 1 first so that
+ // we get the correct offset to the first operand when we set it.
if (!hasInitializer())
- NumOperands = 1;
+ setGlobalVariableNumOperands(1);
Op<0>().set(InitVal);
}
}
GlobalObject::copyAttributesFrom(Src);
const GlobalVariable *SrcVar = cast<GlobalVariable>(Src);
setThreadLocalMode(SrcVar->getThreadLocalMode());
+ setExternallyInitialized(SrcVar->isExternallyInitialized());
}
// GlobalAlias Implementation
//===----------------------------------------------------------------------===//
-GlobalAlias::GlobalAlias(Type *Ty, unsigned AddressSpace, LinkageTypes Link,
- const Twine &Name, Constant *Aliasee,
- Module *ParentModule)
- : GlobalValue(PointerType::get(Ty, AddressSpace), Value::GlobalAliasVal,
- &Op<0>(), 1, Link, Name) {
- LeakDetector::addGarbageObject(this);
+GlobalAlias::GlobalAlias(PointerType *Ty, LinkageTypes Link, const Twine &Name,
+ Constant *Aliasee, Module *ParentModule)
+ : GlobalValue(Ty, Value::GlobalAliasVal, &Op<0>(), 1, Link, Name) {
Op<0>() = Aliasee;
if (ParentModule)
ParentModule->getAliasList().push_back(this);
}
-GlobalAlias *GlobalAlias::create(Type *Ty, unsigned AddressSpace,
- LinkageTypes Link, const Twine &Name,
- Constant *Aliasee, Module *ParentModule) {
- return new GlobalAlias(Ty, AddressSpace, Link, Name, Aliasee, ParentModule);
+GlobalAlias *GlobalAlias::create(PointerType *Ty, LinkageTypes Link,
+ const Twine &Name, Constant *Aliasee,
+ Module *ParentModule) {
+ return new GlobalAlias(Ty, Link, Name, Aliasee, ParentModule);
}
-GlobalAlias *GlobalAlias::create(Type *Ty, unsigned AddressSpace,
- LinkageTypes Linkage, const Twine &Name,
- Module *Parent) {
- return create(Ty, AddressSpace, Linkage, Name, nullptr, Parent);
+GlobalAlias *GlobalAlias::create(PointerType *Ty, LinkageTypes Linkage,
+ const Twine &Name, Module *Parent) {
+ return create(Ty, Linkage, Name, nullptr, Parent);
}
-GlobalAlias *GlobalAlias::create(Type *Ty, unsigned AddressSpace,
- LinkageTypes Linkage, const Twine &Name,
- GlobalValue *Aliasee) {
- return create(Ty, AddressSpace, Linkage, Name, Aliasee, Aliasee->getParent());
+GlobalAlias *GlobalAlias::create(PointerType *Ty, LinkageTypes Linkage,
+ const Twine &Name, GlobalValue *Aliasee) {
+ return create(Ty, Linkage, Name, Aliasee, Aliasee->getParent());
}
GlobalAlias *GlobalAlias::create(LinkageTypes Link, const Twine &Name,
GlobalValue *Aliasee) {
PointerType *PTy = Aliasee->getType();
- return create(PTy->getElementType(), PTy->getAddressSpace(), Link, Name,
- Aliasee);
+ return create(PTy, Link, Name, Aliasee);
}
GlobalAlias *GlobalAlias::create(const Twine &Name, GlobalValue *Aliasee) {
}
void GlobalAlias::setParent(Module *parent) {
- if (getParent())
- LeakDetector::addGarbageObject(this);
Parent = parent;
- if (getParent())
- LeakDetector::removeGarbageObject(this);
}
void GlobalAlias::removeFromParent() {
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