/// This is an implementation class for the LinkModules function, which is the
/// entrypoint for this file.
class ModuleLinker {
- Module *DstM, *SrcM;
+ Module &DstM;
+ Module &SrcM;
TypeMapTy TypeMap;
ValueMaterializerTy ValMaterializer;
bool HasError = false;
public:
- ModuleLinker(Module *dstM, Linker::IdentifiedStructTypeSet &Set, Module *srcM,
+ ModuleLinker(Module &DstM, Linker::IdentifiedStructTypeSet &Set, Module &SrcM,
DiagnosticHandlerFunction DiagnosticHandler, unsigned Flags,
const FunctionInfoIndex *Index = nullptr,
Function *FuncToImport = nullptr)
- : DstM(dstM), SrcM(srcM), TypeMap(Set), ValMaterializer(this),
+ : DstM(DstM), SrcM(SrcM), TypeMap(Set), ValMaterializer(this),
DiagnosticHandler(DiagnosticHandler), Flags(Flags), ImportIndex(Index),
ImportFunction(FuncToImport), HasExportedFunctions(false),
DoneLinkingBodies(false) {
// backend compilation, and we need to see if it has functions that
// may be exported to another backend compilation.
if (ImportIndex && !ImportFunction)
- HasExportedFunctions = ImportIndex->hasExportedFunctions(SrcM);
+ HasExportedFunctions = ImportIndex->hasExportedFunctions(&SrcM);
}
bool run();
DiagnosticHandler(LinkDiagnosticInfo(DS_Warning, Message));
}
- bool getComdatLeader(Module *M, StringRef ComdatName,
+ bool getComdatLeader(Module &M, StringRef ComdatName,
const GlobalVariable *&GVar);
bool computeResultingSelectionKind(StringRef ComdatName,
Comdat::SelectionKind Src,
return nullptr;
// Otherwise see if we have a match in the destination module's symtab.
- GlobalValue *DGV = DstM->getNamedValue(getName(SrcGV));
+ GlobalValue *DGV = DstM.getNamedValue(getName(SrcGV));
if (!DGV)
return nullptr;
// identical version of the symbol over in the dest module... the
// initializer will be filled in later by LinkGlobalInits.
GlobalVariable *NewDGV = new GlobalVariable(
- *DstM, TypeMap.get(SGVar->getType()->getElementType()),
+ DstM, TypeMap.get(SGVar->getType()->getElementType()),
SGVar->isConstant(), getLinkage(SGVar), /*init*/ nullptr, getName(SGVar),
/*insertbefore*/ nullptr, SGVar->getThreadLocalMode(),
SGVar->getType()->getAddressSpace());
// If there is no linkage to be performed or we are linking from the source,
// bring SF over.
return Function::Create(TypeMap.get(SF->getFunctionType()), getLinkage(SF),
- getName(SF), DstM);
+ getName(SF), &DstM);
}
/// Set up prototypes for any aliases that come over from the source module.
// bring over SGA.
auto *Ty = TypeMap.get(SGA->getValueType());
return GlobalAlias::create(Ty, SGA->getType()->getPointerAddressSpace(),
- getLinkage(SGA), getName(SGA), DstM);
+ getLinkage(SGA), getName(SGA), &DstM);
}
static GlobalValue::VisibilityTypes
linkGlobalValueBody(*Old);
}
-bool ModuleLinker::getComdatLeader(Module *M, StringRef ComdatName,
+bool ModuleLinker::getComdatLeader(Module &M, StringRef ComdatName,
const GlobalVariable *&GVar) {
- const GlobalValue *GVal = M->getNamedValue(ComdatName);
+ const GlobalValue *GVal = M.getNamedValue(ComdatName);
if (const auto *GA = dyn_cast_or_null<GlobalAlias>(GVal)) {
GVal = GA->getBaseObject();
if (!GVal)
getComdatLeader(SrcM, ComdatName, SrcGV))
return true;
- const DataLayout &DstDL = DstM->getDataLayout();
- const DataLayout &SrcDL = SrcM->getDataLayout();
+ const DataLayout &DstDL = DstM.getDataLayout();
+ const DataLayout &SrcDL = SrcM.getDataLayout();
uint64_t DstSize =
DstDL.getTypeAllocSize(DstGV->getType()->getPointerElementType());
uint64_t SrcSize =
bool &LinkFromSrc) {
Comdat::SelectionKind SSK = SrcC->getSelectionKind();
StringRef ComdatName = SrcC->getName();
- Module::ComdatSymTabType &ComdatSymTab = DstM->getComdatSymbolTable();
+ Module::ComdatSymTabType &ComdatSymTab = DstM.getComdatSymbolTable();
Module::ComdatSymTabType::iterator DstCI = ComdatSymTab.find(ComdatName);
if (DstCI == ComdatSymTab.end()) {
/// types 'Foo' but one got renamed when the module was loaded into the same
/// LLVMContext.
void ModuleLinker::computeTypeMapping() {
- for (GlobalValue &SGV : SrcM->globals()) {
+ for (GlobalValue &SGV : SrcM.globals()) {
GlobalValue *DGV = getLinkedToGlobal(&SGV);
if (!DGV)
continue;
TypeMap.addTypeMapping(DAT->getElementType(), SAT->getElementType());
}
- for (GlobalValue &SGV : *SrcM) {
+ for (GlobalValue &SGV : SrcM) {
if (GlobalValue *DGV = getLinkedToGlobal(&SGV))
TypeMap.addTypeMapping(DGV->getType(), SGV.getType());
}
- for (GlobalValue &SGV : SrcM->aliases()) {
+ for (GlobalValue &SGV : SrcM.aliases()) {
if (GlobalValue *DGV = getLinkedToGlobal(&SGV))
TypeMap.addTypeMapping(DGV->getType(), SGV.getType());
}
// At this point, the destination module may have a type "%foo = { i32 }" for
// example. When the source module got loaded into the same LLVMContext, if
// it had the same type, it would have been renamed to "%foo.42 = { i32 }".
- std::vector<StructType *> Types = SrcM->getIdentifiedStructTypes();
+ std::vector<StructType *> Types = SrcM.getIdentifiedStructTypes();
for (StructType *ST : Types) {
if (!ST->hasName())
continue;
continue;
// Check to see if the destination module has a struct with the prefix name.
- StructType *DST = DstM->getTypeByName(ST->getName().substr(0, DotPos));
+ StructType *DST = DstM.getTypeByName(ST->getName().substr(0, DotPos));
if (!DST)
continue;
void ModuleLinker::upgradeMismatchedGlobalArray(StringRef Name) {
// Look for the global arrays.
- auto *DstGV = dyn_cast_or_null<GlobalVariable>(DstM->getNamedValue(Name));
+ auto *DstGV = dyn_cast_or_null<GlobalVariable>(DstM.getNamedValue(Name));
if (!DstGV)
return;
- auto *SrcGV = dyn_cast_or_null<GlobalVariable>(SrcM->getNamedValue(Name));
+ auto *SrcGV = dyn_cast_or_null<GlobalVariable>(SrcM.getNamedValue(Name));
if (!SrcGV)
return;
// Create the new global variable.
GlobalVariable *NG = new GlobalVariable(
- *DstM, NewType, SrcGV->isConstant(), SrcGV->getLinkage(),
+ DstM, NewType, SrcGV->isConstant(), SrcGV->getLinkage(),
/*init*/ nullptr, /*name*/ "", DstGV, SrcGV->getThreadLocalMode(),
SrcGV->getType()->getAddressSpace());
if (const Comdat *SC = SGV->getComdat()) {
Comdat::SelectionKind SK;
std::tie(SK, LinkFromSrc) = ComdatsChosen[SC];
- C = DstM->getOrInsertComdat(SC->getName());
+ C = DstM.getOrInsertComdat(SC->getName());
C->setSelectionKind(SK);
if (SGV->hasInternalLinkage())
LinkFromSrc = true;
/// Insert all of the named MDNodes in Src into the Dest module.
void ModuleLinker::linkNamedMDNodes() {
- const NamedMDNode *SrcModFlags = SrcM->getModuleFlagsMetadata();
- for (const NamedMDNode &NMD : SrcM->named_metadata()) {
+ const NamedMDNode *SrcModFlags = SrcM.getModuleFlagsMetadata();
+ for (const NamedMDNode &NMD : SrcM.named_metadata()) {
// Don't link module flags here. Do them separately.
if (&NMD == SrcModFlags)
continue;
- NamedMDNode *DestNMD = DstM->getOrInsertNamedMetadata(NMD.getName());
+ NamedMDNode *DestNMD = DstM.getOrInsertNamedMetadata(NMD.getName());
// Add Src elements into Dest node.
for (const MDNode *op : NMD.operands())
DestNMD->addOperand(MapMetadata(
/// Merge the linker flags in Src into the Dest module.
bool ModuleLinker::linkModuleFlagsMetadata() {
// If the source module has no module flags, we are done.
- const NamedMDNode *SrcModFlags = SrcM->getModuleFlagsMetadata();
+ const NamedMDNode *SrcModFlags = SrcM.getModuleFlagsMetadata();
if (!SrcModFlags) return false;
// If the destination module doesn't have module flags yet, then just copy
// over the source module's flags.
- NamedMDNode *DstModFlags = DstM->getOrInsertModuleFlagsMetadata();
+ NamedMDNode *DstModFlags = DstM.getOrInsertModuleFlagsMetadata();
if (DstModFlags->getNumOperands() == 0) {
for (unsigned I = 0, E = SrcModFlags->getNumOperands(); I != E; ++I)
DstModFlags->addOperand(SrcModFlags->getOperand(I));
auto replaceDstValue = [&](MDNode *New) {
Metadata *FlagOps[] = {DstOp->getOperand(0), ID, New};
- MDNode *Flag = MDNode::get(DstM->getContext(), FlagOps);
+ MDNode *Flag = MDNode::get(DstM.getContext(), FlagOps);
DstModFlags->setOperand(DstIndex, Flag);
Flags[ID].first = Flag;
};
MDs.append(DstValue->op_begin(), DstValue->op_end());
MDs.append(SrcValue->op_begin(), SrcValue->op_end());
- replaceDstValue(MDNode::get(DstM->getContext(), MDs));
+ replaceDstValue(MDNode::get(DstM.getContext(), MDs));
break;
}
case Module::AppendUnique: {
Elts.insert(DstValue->op_begin(), DstValue->op_end());
Elts.insert(SrcValue->op_begin(), SrcValue->op_end());
- replaceDstValue(MDNode::get(DstM->getContext(),
+ replaceDstValue(MDNode::get(DstM.getContext(),
makeArrayRef(Elts.begin(), Elts.end())));
break;
}
}
bool ModuleLinker::run() {
- assert(DstM && "Null destination module");
- assert(SrcM && "Null source module");
-
// Inherit the target data from the source module if the destination module
// doesn't have one already.
- if (DstM->getDataLayout().isDefault())
- DstM->setDataLayout(SrcM->getDataLayout());
+ if (DstM.getDataLayout().isDefault())
+ DstM.setDataLayout(SrcM.getDataLayout());
- if (SrcM->getDataLayout() != DstM->getDataLayout()) {
+ if (SrcM.getDataLayout() != DstM.getDataLayout()) {
emitWarning("Linking two modules of different data layouts: '" +
- SrcM->getModuleIdentifier() + "' is '" +
- SrcM->getDataLayoutStr() + "' whereas '" +
- DstM->getModuleIdentifier() + "' is '" +
- DstM->getDataLayoutStr() + "'\n");
+ SrcM.getModuleIdentifier() + "' is '" +
+ SrcM.getDataLayoutStr() + "' whereas '" +
+ DstM.getModuleIdentifier() + "' is '" +
+ DstM.getDataLayoutStr() + "'\n");
}
// Copy the target triple from the source to dest if the dest's is empty.
- if (DstM->getTargetTriple().empty() && !SrcM->getTargetTriple().empty())
- DstM->setTargetTriple(SrcM->getTargetTriple());
+ if (DstM.getTargetTriple().empty() && !SrcM.getTargetTriple().empty())
+ DstM.setTargetTriple(SrcM.getTargetTriple());
- Triple SrcTriple(SrcM->getTargetTriple()), DstTriple(DstM->getTargetTriple());
+ Triple SrcTriple(SrcM.getTargetTriple()), DstTriple(DstM.getTargetTriple());
- if (!SrcM->getTargetTriple().empty() && !triplesMatch(SrcTriple, DstTriple))
+ if (!SrcM.getTargetTriple().empty() && !triplesMatch(SrcTriple, DstTriple))
emitWarning("Linking two modules of different target triples: " +
- SrcM->getModuleIdentifier() + "' is '" +
- SrcM->getTargetTriple() + "' whereas '" +
- DstM->getModuleIdentifier() + "' is '" +
- DstM->getTargetTriple() + "'\n");
+ SrcM.getModuleIdentifier() + "' is '" + SrcM.getTargetTriple() +
+ "' whereas '" + DstM.getModuleIdentifier() + "' is '" +
+ DstM.getTargetTriple() + "'\n");
- DstM->setTargetTriple(mergeTriples(SrcTriple, DstTriple));
+ DstM.setTargetTriple(mergeTriples(SrcTriple, DstTriple));
// Append the module inline asm string.
- if (!SrcM->getModuleInlineAsm().empty()) {
- if (DstM->getModuleInlineAsm().empty())
- DstM->setModuleInlineAsm(SrcM->getModuleInlineAsm());
+ if (!SrcM.getModuleInlineAsm().empty()) {
+ if (DstM.getModuleInlineAsm().empty())
+ DstM.setModuleInlineAsm(SrcM.getModuleInlineAsm());
else
- DstM->setModuleInlineAsm(DstM->getModuleInlineAsm()+"\n"+
- SrcM->getModuleInlineAsm());
+ DstM.setModuleInlineAsm(DstM.getModuleInlineAsm() + "\n" +
+ SrcM.getModuleInlineAsm());
}
// Loop over all of the linked values to compute type mappings.
computeTypeMapping();
ComdatsChosen.clear();
- for (const auto &SMEC : SrcM->getComdatSymbolTable()) {
+ for (const auto &SMEC : SrcM.getComdatSymbolTable()) {
const Comdat &C = SMEC.getValue();
if (ComdatsChosen.count(&C))
continue;
// Upgrade mismatched global arrays.
upgradeMismatchedGlobals();
- for (GlobalVariable &GV : SrcM->globals())
+ for (GlobalVariable &GV : SrcM.globals())
if (const Comdat *SC = GV.getComdat())
ComdatMembers[SC].push_back(&GV);
- for (Function &SF : *SrcM)
+ for (Function &SF : SrcM)
if (const Comdat *SC = SF.getComdat())
ComdatMembers[SC].push_back(&SF);
- for (GlobalAlias &GA : SrcM->aliases())
+ for (GlobalAlias &GA : SrcM.aliases())
if (const Comdat *SC = GA.getComdat())
ComdatMembers[SC].push_back(&GA);
// Insert all of the globals in src into the DstM module... without linking
// initializers (which could refer to functions not yet mapped over).
- for (GlobalVariable &GV : SrcM->globals())
+ for (GlobalVariable &GV : SrcM.globals())
if (linkIfNeeded(GV))
return true;
- for (Function &SF : *SrcM)
+ for (Function &SF : SrcM)
if (linkIfNeeded(SF))
return true;
- for (GlobalAlias &GA : SrcM->aliases())
+ for (GlobalAlias &GA : SrcM.aliases())
if (linkIfNeeded(GA))
return true;
- for (const auto &Entry : DstM->getComdatSymbolTable()) {
+ for (const auto &Entry : DstM.getComdatSymbolTable()) {
const Comdat &C = Entry.getValue();
if (C.getSelectionKind() == Comdat::Any)
continue;
- const GlobalValue *GV = SrcM->getNamedValue(C.getName());
+ const GlobalValue *GV = SrcM.getNamedValue(C.getName());
if (GV)
MapValue(GV, ValueMap, RF_MoveDistinctMDs, &TypeMap, &ValMaterializer);
}
return *I == Ty;
}
-Linker::Linker(Module *M, DiagnosticHandlerFunction DiagnosticHandler) {
- this->Composite = M;
- this->DiagnosticHandler = DiagnosticHandler;
-
+Linker::Linker(Module &M, DiagnosticHandlerFunction DiagnosticHandler)
+ : Composite(M), DiagnosticHandler(DiagnosticHandler) {
TypeFinder StructTypes;
- StructTypes.run(*M, true);
+ StructTypes.run(M, true);
for (StructType *Ty : StructTypes) {
if (Ty->isOpaque())
IdentifiedStructTypes.addOpaque(Ty);
}
}
-Linker::Linker(Module *M)
+Linker::Linker(Module &M)
: Linker(M, [this](const DiagnosticInfo &DI) {
- Composite->getContext().diagnose(DI);
+ Composite.getContext().diagnose(DI);
}) {}
-bool Linker::linkInModule(Module *Src, unsigned Flags,
+bool Linker::linkInModule(Module &Src, unsigned Flags,
const FunctionInfoIndex *Index,
Function *FuncToImport) {
ModuleLinker TheLinker(Composite, IdentifiedStructTypes, Src,
DiagnosticHandler, Flags, Index, FuncToImport);
bool RetCode = TheLinker.run();
- Composite->dropTriviallyDeadConstantArrays();
+ Composite.dropTriviallyDeadConstantArrays();
return RetCode;
}
/// true is returned and ErrorMsg (if not null) is set to indicate the problem.
/// Upon failure, the Dest module could be in a modified state, and shouldn't be
/// relied on to be consistent.
-bool Linker::LinkModules(Module *Dest, Module *Src,
+bool Linker::linkModules(Module &Dest, Module &Src,
DiagnosticHandlerFunction DiagnosticHandler,
unsigned Flags) {
Linker L(Dest, DiagnosticHandler);
return L.linkInModule(Src, Flags);
}
-bool Linker::LinkModules(Module *Dest, Module *Src, unsigned Flags) {
+bool Linker::linkModules(Module &Dest, Module &Src, unsigned Flags) {
Linker L(Dest);
return L.linkInModule(Src, Flags);
}
raw_string_ostream Stream(Message);
DiagnosticPrinterRawOStream DP(Stream);
- LLVMBool Result = Linker::LinkModules(
- D, unwrap(Src), [&](const DiagnosticInfo &DI) { DI.print(DP); });
+ LLVMBool Result = Linker::linkModules(
+ *D, *unwrap(Src), [&](const DiagnosticInfo &DI) { DI.print(DP); });
if (OutMessages && Result) {
Stream.flush();
projects / oota-llvm.git / blobdiff