}
void BitcodeReader::FreeState() {
- if (BufferOwned)
- delete Buffer;
Buffer = nullptr;
std::vector<Type*>().swap(TypeList);
ValueList.clear();
MDValueList.clear();
+ std::vector<Comdat *>().swap(ComdatList);
std::vector<AttributeSet>().swap(MAttributes);
std::vector<BasicBlock*>().swap(FunctionBBs);
}
}
+static Comdat::SelectionKind getDecodedComdatSelectionKind(unsigned Val) {
+ switch (Val) {
+ default: // Map unknown selection kinds to any.
+ case bitc::COMDAT_SELECTION_KIND_ANY:
+ return Comdat::Any;
+ case bitc::COMDAT_SELECTION_KIND_EXACT_MATCH:
+ return Comdat::ExactMatch;
+ case bitc::COMDAT_SELECTION_KIND_LARGEST:
+ return Comdat::Largest;
+ case bitc::COMDAT_SELECTION_KIND_NO_DUPLICATES:
+ return Comdat::NoDuplicates;
+ case bitc::COMDAT_SELECTION_KIND_SAME_SIZE:
+ return Comdat::SameSize;
+ }
+}
+
static void UpgradeDLLImportExportLinkage(llvm::GlobalValue *GV, unsigned Val) {
switch (Val) {
case 5: GV->setDLLStorageClass(GlobalValue::DLLImportStorageClass); break;
(EncodedAttrs & 0xffff));
}
-error_code BitcodeReader::ParseAttributeBlock() {
+std::error_code BitcodeReader::ParseAttributeBlock() {
if (Stream.EnterSubBlock(bitc::PARAMATTR_BLOCK_ID))
return Error(InvalidRecord);
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
return Attribute::InlineHint;
case bitc::ATTR_KIND_IN_REG:
return Attribute::InReg;
+ case bitc::ATTR_KIND_JUMP_TABLE:
+ return Attribute::JumpTable;
case bitc::ATTR_KIND_MIN_SIZE:
return Attribute::MinSize;
case bitc::ATTR_KIND_NAKED:
return Attribute::NonLazyBind;
case bitc::ATTR_KIND_NON_NULL:
return Attribute::NonNull;
+ case bitc::ATTR_KIND_DEREFERENCEABLE:
+ return Attribute::Dereferenceable;
case bitc::ATTR_KIND_NO_RED_ZONE:
return Attribute::NoRedZone;
case bitc::ATTR_KIND_NO_RETURN:
}
}
-error_code BitcodeReader::ParseAttrKind(uint64_t Code,
- Attribute::AttrKind *Kind) {
+std::error_code BitcodeReader::ParseAttrKind(uint64_t Code,
+ Attribute::AttrKind *Kind) {
*Kind = GetAttrFromCode(Code);
if (*Kind == Attribute::None)
return Error(InvalidValue);
- return error_code();
+ return std::error_code();
}
-error_code BitcodeReader::ParseAttributeGroupBlock() {
+std::error_code BitcodeReader::ParseAttributeGroupBlock() {
if (Stream.EnterSubBlock(bitc::PARAMATTR_GROUP_BLOCK_ID))
return Error(InvalidRecord);
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
for (unsigned i = 2, e = Record.size(); i != e; ++i) {
if (Record[i] == 0) { // Enum attribute
Attribute::AttrKind Kind;
- if (error_code EC = ParseAttrKind(Record[++i], &Kind))
+ if (std::error_code EC = ParseAttrKind(Record[++i], &Kind))
return EC;
B.addAttribute(Kind);
- } else if (Record[i] == 1) { // Align attribute
+ } else if (Record[i] == 1) { // Integer attribute
Attribute::AttrKind Kind;
- if (error_code EC = ParseAttrKind(Record[++i], &Kind))
+ if (std::error_code EC = ParseAttrKind(Record[++i], &Kind))
return EC;
if (Kind == Attribute::Alignment)
B.addAlignmentAttr(Record[++i]);
- else
+ else if (Kind == Attribute::StackAlignment)
B.addStackAlignmentAttr(Record[++i]);
+ else if (Kind == Attribute::Dereferenceable)
+ B.addDereferenceableAttr(Record[++i]);
} else { // String attribute
assert((Record[i] == 3 || Record[i] == 4) &&
"Invalid attribute group entry");
}
}
-error_code BitcodeReader::ParseTypeTable() {
+std::error_code BitcodeReader::ParseTypeTable() {
if (Stream.EnterSubBlock(bitc::TYPE_BLOCK_ID_NEW))
return Error(InvalidRecord);
return ParseTypeTableBody();
}
-error_code BitcodeReader::ParseTypeTableBody() {
+std::error_code BitcodeReader::ParseTypeTableBody() {
if (!TypeList.empty())
return Error(InvalidMultipleBlocks);
case BitstreamEntry::EndBlock:
if (NumRecords != TypeList.size())
return Error(MalformedBlock);
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
}
}
-error_code BitcodeReader::ParseValueSymbolTable() {
+std::error_code BitcodeReader::ParseValueSymbolTable() {
if (Stream.EnterSubBlock(bitc::VALUE_SYMTAB_BLOCK_ID))
return Error(InvalidRecord);
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
}
}
-error_code BitcodeReader::ParseMetadata() {
+std::error_code BitcodeReader::ParseMetadata() {
unsigned NextMDValueNo = MDValueList.size();
if (Stream.EnterSubBlock(bitc::METADATA_BLOCK_ID))
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
break;
}
case bitc::METADATA_STRING: {
- SmallString<8> String(Record.begin(), Record.end());
+ std::string String(Record.begin(), Record.end());
+ llvm::UpgradeMDStringConstant(String);
Value *V = MDString::get(Context, String);
MDValueList.AssignValue(V, NextMDValueNo++);
break;
/// ResolveGlobalAndAliasInits - Resolve all of the initializers for global
/// values and aliases that we can.
-error_code BitcodeReader::ResolveGlobalAndAliasInits() {
+std::error_code BitcodeReader::ResolveGlobalAndAliasInits() {
std::vector<std::pair<GlobalVariable*, unsigned> > GlobalInitWorklist;
std::vector<std::pair<GlobalAlias*, unsigned> > AliasInitWorklist;
std::vector<std::pair<Function*, unsigned> > FunctionPrefixWorklist;
FunctionPrefixWorklist.pop_back();
}
- return error_code();
+ return std::error_code();
}
static APInt ReadWideAPInt(ArrayRef<uint64_t> Vals, unsigned TypeBits) {
return APInt(TypeBits, Words);
}
-error_code BitcodeReader::ParseConstants() {
+std::error_code BitcodeReader::ParseConstants() {
if (Stream.EnterSubBlock(bitc::CONSTANTS_BLOCK_ID))
return Error(InvalidRecord);
// Once all the constants have been read, go through and resolve forward
// references.
ValueList.ResolveConstantForwardRefs();
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
}
}
-error_code BitcodeReader::ParseUseLists() {
+std::error_code BitcodeReader::ParseUseLists() {
if (Stream.EnterSubBlock(bitc::USELIST_BLOCK_ID))
return Error(InvalidRecord);
- SmallVector<uint64_t, 64> Record;
-
// Read all the records.
+ SmallVector<uint64_t, 64> Record;
while (1) {
BitstreamEntry Entry = Stream.advanceSkippingSubblocks();
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
// Read a use list record.
Record.clear();
+ bool IsBB = false;
switch (Stream.readRecord(Entry.ID, Record)) {
default: // Default behavior: unknown type.
break;
- case bitc::USELIST_CODE_ENTRY: { // USELIST_CODE_ENTRY: TBD.
+ case bitc::USELIST_CODE_BB:
+ IsBB = true;
+ // fallthrough
+ case bitc::USELIST_CODE_DEFAULT: {
unsigned RecordLength = Record.size();
- if (RecordLength < 1)
- return Error(InvalidRecord);
- UseListRecords.push_back(Record);
+ if (RecordLength < 3)
+ // Records should have at least an ID and two indexes.
+ return Error(InvalidRecord);
+ unsigned ID = Record.back();
+ Record.pop_back();
+
+ Value *V;
+ if (IsBB) {
+ assert(ID < FunctionBBs.size() && "Basic block not found");
+ V = FunctionBBs[ID];
+ } else
+ V = ValueList[ID];
+ unsigned NumUses = 0;
+ SmallDenseMap<const Use *, unsigned, 16> Order;
+ for (const Use &U : V->uses()) {
+ if (NumUses > Record.size())
+ break;
+ Order[&U] = Record[NumUses++];
+ }
+ if (Order.size() != Record.size() || NumUses > Record.size())
+ // Mismatches can happen if the functions are being materialized lazily
+ // (out-of-order), or a value has been upgraded.
+ break;
+
+ V->sortUseList([&](const Use &L, const Use &R) {
+ return Order.lookup(&L) < Order.lookup(&R);
+ });
break;
}
}
/// RememberAndSkipFunctionBody - When we see the block for a function body,
/// remember where it is and then skip it. This lets us lazily deserialize the
/// functions.
-error_code BitcodeReader::RememberAndSkipFunctionBody() {
+std::error_code BitcodeReader::RememberAndSkipFunctionBody() {
// Get the function we are talking about.
if (FunctionsWithBodies.empty())
return Error(InsufficientFunctionProtos);
// Skip over the function block for now.
if (Stream.SkipBlock())
return Error(InvalidRecord);
- return error_code();
+ return std::error_code();
}
-error_code BitcodeReader::GlobalCleanup() {
+std::error_code BitcodeReader::GlobalCleanup() {
// Patch the initializers for globals and aliases up.
ResolveGlobalAndAliasInits();
if (!GlobalInits.empty() || !AliasInits.empty())
// want lazy deserialization.
std::vector<std::pair<GlobalVariable*, unsigned> >().swap(GlobalInits);
std::vector<std::pair<GlobalAlias*, unsigned> >().swap(AliasInits);
- return error_code();
+ return std::error_code();
}
-error_code BitcodeReader::ParseModule(bool Resume) {
+std::error_code BitcodeReader::ParseModule(bool Resume) {
if (Resume)
Stream.JumpToBit(NextUnreadBit);
else if (Stream.EnterSubBlock(bitc::MODULE_BLOCK_ID))
return Error(MalformedBlock);
break;
case bitc::PARAMATTR_BLOCK_ID:
- if (error_code EC = ParseAttributeBlock())
+ if (std::error_code EC = ParseAttributeBlock())
return EC;
break;
case bitc::PARAMATTR_GROUP_BLOCK_ID:
- if (error_code EC = ParseAttributeGroupBlock())
+ if (std::error_code EC = ParseAttributeGroupBlock())
return EC;
break;
case bitc::TYPE_BLOCK_ID_NEW:
- if (error_code EC = ParseTypeTable())
+ if (std::error_code EC = ParseTypeTable())
return EC;
break;
case bitc::VALUE_SYMTAB_BLOCK_ID:
- if (error_code EC = ParseValueSymbolTable())
+ if (std::error_code EC = ParseValueSymbolTable())
return EC;
SeenValueSymbolTable = true;
break;
case bitc::CONSTANTS_BLOCK_ID:
- if (error_code EC = ParseConstants())
+ if (std::error_code EC = ParseConstants())
return EC;
- if (error_code EC = ResolveGlobalAndAliasInits())
+ if (std::error_code EC = ResolveGlobalAndAliasInits())
return EC;
break;
case bitc::METADATA_BLOCK_ID:
- if (error_code EC = ParseMetadata())
+ if (std::error_code EC = ParseMetadata())
return EC;
break;
case bitc::FUNCTION_BLOCK_ID:
// FunctionsWithBodies list.
if (!SeenFirstFunctionBody) {
std::reverse(FunctionsWithBodies.begin(), FunctionsWithBodies.end());
- if (error_code EC = GlobalCleanup())
+ if (std::error_code EC = GlobalCleanup())
return EC;
SeenFirstFunctionBody = true;
}
- if (error_code EC = RememberAndSkipFunctionBody())
+ if (std::error_code EC = RememberAndSkipFunctionBody())
return EC;
// For streaming bitcode, suspend parsing when we reach the function
// bodies. Subsequent materialization calls will resume it when
// just finish the parse now.
if (LazyStreamer && SeenValueSymbolTable) {
NextUnreadBit = Stream.GetCurrentBitNo();
- return error_code();
+ return std::error_code();
}
break;
case bitc::USELIST_BLOCK_ID:
- if (error_code EC = ParseUseLists())
+ if (std::error_code EC = ParseUseLists())
return EC;
break;
}
GCTable.push_back(S);
break;
}
+ case bitc::MODULE_CODE_COMDAT: { // COMDAT: [selection_kind, name]
+ if (Record.size() < 2)
+ return Error(InvalidRecord);
+ Comdat::SelectionKind SK = getDecodedComdatSelectionKind(Record[0]);
+ unsigned ComdatNameSize = Record[1];
+ std::string ComdatName;
+ ComdatName.reserve(ComdatNameSize);
+ for (unsigned i = 0; i != ComdatNameSize; ++i)
+ ComdatName += (char)Record[2 + i];
+ Comdat *C = TheModule->getOrInsertComdat(ComdatName);
+ C->setSelectionKind(SK);
+ ComdatList.push_back(C);
+ break;
+ }
// GLOBALVAR: [pointer type, isconst, initid,
// linkage, alignment, section, visibility, threadlocal,
// unnamed_addr, dllstorageclass]
// Remember which value to use for the global initializer.
if (unsigned InitID = Record[2])
GlobalInits.push_back(std::make_pair(NewGV, InitID-1));
+
+ if (Record.size() > 11)
+ if (unsigned ComdatID = Record[11]) {
+ assert(ComdatID <= ComdatList.size());
+ NewGV->setComdat(ComdatList[ComdatID - 1]);
+ }
break;
}
// FUNCTION: [type, callingconv, isproto, linkage, paramattr,
else
UpgradeDLLImportExportLinkage(Func, Record[3]);
+ if (Record.size() > 12)
+ if (unsigned ComdatID = Record[12]) {
+ assert(ComdatID <= ComdatList.size());
+ Func->setComdat(ComdatList[ComdatID - 1]);
+ }
+
ValueList.push_back(Func);
// If this is a function with a body, remember the prototype we are
UpgradeDLLImportExportLinkage(NewGA, Record[2]);
if (Record.size() > 5)
NewGA->setThreadLocalMode(GetDecodedThreadLocalMode(Record[5]));
+ if (Record.size() > 6)
+ NewGA->setUnnamedAddr(Record[6]);
ValueList.push_back(NewGA);
AliasInits.push_back(std::make_pair(NewGA, Record[1]));
break;
}
}
-error_code BitcodeReader::ParseBitcodeInto(Module *M) {
+std::error_code BitcodeReader::ParseBitcodeInto(Module *M) {
TheModule = nullptr;
- if (error_code EC = InitStream())
+ if (std::error_code EC = InitStream())
return EC;
// Sniff for the signature.
// need to understand them all.
while (1) {
if (Stream.AtEndOfStream())
- return error_code();
+ return std::error_code();
BitstreamEntry Entry =
Stream.advance(BitstreamCursor::AF_DontAutoprocessAbbrevs);
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::SubBlock:
switch (Entry.ID) {
if (TheModule)
return Error(InvalidMultipleBlocks);
TheModule = M;
- if (error_code EC = ParseModule(false))
+ if (std::error_code EC = ParseModule(false))
return EC;
if (LazyStreamer)
- return error_code();
+ return std::error_code();
break;
default:
if (Stream.SkipBlock())
if (Stream.getAbbrevIDWidth() == 2 && Entry.ID == 2 &&
Stream.Read(6) == 2 && Stream.Read(24) == 0xa0a0a &&
Stream.AtEndOfStream())
- return error_code();
+ return std::error_code();
return Error(InvalidRecord);
}
}
}
-error_code BitcodeReader::ParseModuleTriple(std::string &Triple) {
+ErrorOr<std::string> BitcodeReader::parseModuleTriple() {
if (Stream.EnterSubBlock(bitc::MODULE_BLOCK_ID))
return Error(InvalidRecord);
SmallVector<uint64_t, 64> Record;
+ std::string Triple;
// Read all the records for this module.
while (1) {
BitstreamEntry Entry = Stream.advanceSkippingSubblocks();
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return Triple;
case BitstreamEntry::Record:
// The interesting case.
break;
}
Record.clear();
}
+ llvm_unreachable("Exit infinite loop");
}
-error_code BitcodeReader::ParseTriple(std::string &Triple) {
- if (error_code EC = InitStream())
+ErrorOr<std::string> BitcodeReader::parseTriple() {
+ if (std::error_code EC = InitStream())
return EC;
// Sniff for the signature.
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::SubBlock:
if (Entry.ID == bitc::MODULE_BLOCK_ID)
- return ParseModuleTriple(Triple);
+ return parseModuleTriple();
// Ignore other sub-blocks.
if (Stream.SkipBlock())
}
/// ParseMetadataAttachment - Parse metadata attachments.
-error_code BitcodeReader::ParseMetadataAttachment() {
+std::error_code BitcodeReader::ParseMetadataAttachment() {
if (Stream.EnterSubBlock(bitc::METADATA_ATTACHMENT_ID))
return Error(InvalidRecord);
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code();
+ return std::error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
}
/// ParseFunctionBody - Lazily parse the specified function body block.
-error_code BitcodeReader::ParseFunctionBody(Function *F) {
+std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
if (Stream.EnterSubBlock(bitc::FUNCTION_BLOCK_ID))
return Error(InvalidRecord);
return Error(InvalidRecord);
break;
case bitc::CONSTANTS_BLOCK_ID:
- if (error_code EC = ParseConstants())
+ if (std::error_code EC = ParseConstants())
return EC;
NextValueNo = ValueList.size();
break;
case bitc::VALUE_SYMTAB_BLOCK_ID:
- if (error_code EC = ParseValueSymbolTable())
+ if (std::error_code EC = ParseValueSymbolTable())
return EC;
break;
case bitc::METADATA_ATTACHMENT_ID:
- if (error_code EC = ParseMetadataAttachment())
+ if (std::error_code EC = ParseMetadataAttachment())
return EC;
break;
case bitc::METADATA_BLOCK_ID:
- if (error_code EC = ParseMetadata())
+ if (std::error_code EC = ParseMetadata())
+ return EC;
+ break;
+ case bitc::USELIST_BLOCK_ID:
+ if (std::error_code EC = ParseUseLists())
return EC;
break;
}
dyn_cast_or_null<PointerType>(getTypeByID(Record[0]));
Type *OpTy = getTypeByID(Record[1]);
Value *Size = getFnValueByID(Record[2], OpTy);
- unsigned Align = Record[3];
+ unsigned AlignRecord = Record[3];
+ bool InAlloca = AlignRecord & (1 << 5);
+ unsigned Align = AlignRecord & ((1 << 5) - 1);
if (!Ty || !Size)
return Error(InvalidRecord);
- I = new AllocaInst(Ty->getElementType(), Size, (1 << Align) >> 1);
+ AllocaInst *AI = new AllocaInst(Ty->getElementType(), Size, (1 << Align) >> 1);
+ AI->setUsedWithInAlloca(InAlloca);
+ I = AI;
InstructionList.push_back(I);
break;
}
}
case bitc::FUNC_CODE_INST_CMPXCHG: {
// CMPXCHG:[ptrty, ptr, cmp, new, vol, successordering, synchscope,
- // failureordering]
+ // failureordering?, isweak?]
unsigned OpNum = 0;
Value *Ptr, *Cmp, *New;
if (getValueTypePair(Record, OpNum, NextValueNo, Ptr) ||
cast<PointerType>(Ptr->getType())->getElementType(), Cmp) ||
popValue(Record, OpNum, NextValueNo,
cast<PointerType>(Ptr->getType())->getElementType(), New) ||
- (OpNum + 3 != Record.size() && OpNum + 4 != Record.size()))
+ (Record.size() < OpNum + 3 || Record.size() > OpNum + 5))
return Error(InvalidRecord);
AtomicOrdering SuccessOrdering = GetDecodedOrdering(Record[OpNum+1]);
if (SuccessOrdering == NotAtomic || SuccessOrdering == Unordered)
I = new AtomicCmpXchgInst(Ptr, Cmp, New, SuccessOrdering, FailureOrdering,
SynchScope);
cast<AtomicCmpXchgInst>(I)->setVolatile(Record[OpNum]);
+
+ if (Record.size() < 8) {
+ // Before weak cmpxchgs existed, the instruction simply returned the
+ // value loaded from memory, so bitcode files from that era will be
+ // expecting the first component of a modern cmpxchg.
+ CurBB->getInstList().push_back(I);
+ I = ExtractValueInst::Create(I, 0);
+ } else {
+ cast<AtomicCmpXchgInst>(I)->setWeak(Record[OpNum+4]);
+ }
+
InstructionList.push_back(I);
break;
}
ValueList.shrinkTo(ModuleValueListSize);
MDValueList.shrinkTo(ModuleMDValueListSize);
std::vector<BasicBlock*>().swap(FunctionBBs);
- return error_code();
+ return std::error_code();
}
/// Find the function body in the bitcode stream
-error_code BitcodeReader::FindFunctionInStream(Function *F,
- DenseMap<Function*, uint64_t>::iterator DeferredFunctionInfoIterator) {
+std::error_code BitcodeReader::FindFunctionInStream(
+ Function *F,
+ DenseMap<Function *, uint64_t>::iterator DeferredFunctionInfoIterator) {
while (DeferredFunctionInfoIterator->second == 0) {
if (Stream.AtEndOfStream())
return Error(CouldNotFindFunctionInStream);
// ParseModule will parse the next body in the stream and set its
// position in the DeferredFunctionInfo map.
- if (error_code EC = ParseModule(true))
+ if (std::error_code EC = ParseModule(true))
return EC;
}
- return error_code();
+ return std::error_code();
}
//===----------------------------------------------------------------------===//
// GVMaterializer implementation
//===----------------------------------------------------------------------===//
+void BitcodeReader::releaseBuffer() { Buffer.release(); }
bool BitcodeReader::isMaterializable(const GlobalValue *GV) const {
if (const Function *F = dyn_cast<Function>(GV)) {
return false;
}
-error_code BitcodeReader::Materialize(GlobalValue *GV) {
+std::error_code BitcodeReader::Materialize(GlobalValue *GV) {
Function *F = dyn_cast<Function>(GV);
// If it's not a function or is already material, ignore the request.
if (!F || !F->isMaterializable())
- return error_code();
+ return std::error_code();
DenseMap<Function*, uint64_t>::iterator DFII = DeferredFunctionInfo.find(F);
assert(DFII != DeferredFunctionInfo.end() && "Deferred function not found!");
// If its position is recorded as 0, its body is somewhere in the stream
// but we haven't seen it yet.
if (DFII->second == 0 && LazyStreamer)
- if (error_code EC = FindFunctionInStream(F, DFII))
+ if (std::error_code EC = FindFunctionInStream(F, DFII))
return EC;
// Move the bit stream to the saved position of the deferred function body.
Stream.JumpToBit(DFII->second);
- if (error_code EC = ParseFunctionBody(F))
+ if (std::error_code EC = ParseFunctionBody(F))
return EC;
// Upgrade any old intrinsic calls in the function.
}
}
- return error_code();
+ return std::error_code();
}
bool BitcodeReader::isDematerializable(const GlobalValue *GV) const {
F->deleteBody();
}
-
-error_code BitcodeReader::MaterializeModule(Module *M) {
+std::error_code BitcodeReader::MaterializeModule(Module *M) {
assert(M == TheModule &&
"Can only Materialize the Module this BitcodeReader is attached to.");
// Iterate over the module, deserializing any functions that are still on
for (Module::iterator F = TheModule->begin(), E = TheModule->end();
F != E; ++F) {
if (F->isMaterializable()) {
- if (error_code EC = Materialize(F))
+ if (std::error_code EC = Materialize(F))
return EC;
}
}
UpgradeInstWithTBAATag(InstsWithTBAATag[I]);
UpgradeDebugInfo(*M);
- return error_code();
+ return std::error_code();
}
-error_code BitcodeReader::InitStream() {
+std::error_code BitcodeReader::InitStream() {
if (LazyStreamer)
return InitLazyStream();
return InitStreamFromBuffer();
}
-error_code BitcodeReader::InitStreamFromBuffer() {
+std::error_code BitcodeReader::InitStreamFromBuffer() {
const unsigned char *BufPtr = (const unsigned char*)Buffer->getBufferStart();
const unsigned char *BufEnd = BufPtr+Buffer->getBufferSize();
StreamFile.reset(new BitstreamReader(BufPtr, BufEnd));
Stream.init(*StreamFile);
- return error_code();
+ return std::error_code();
}
-error_code BitcodeReader::InitLazyStream() {
+std::error_code BitcodeReader::InitLazyStream() {
// Check and strip off the bitcode wrapper; BitstreamReader expects never to
// see it.
StreamingMemoryObject *Bytes = new StreamingMemoryObject(LazyStreamer);
Bytes->dropLeadingBytes(bitcodeStart - buf);
Bytes->setKnownObjectSize(bitcodeEnd - bitcodeStart);
}
- return error_code();
+ return std::error_code();
}
namespace {
-class BitcodeErrorCategoryType : public error_category {
- const char *name() const override {
+class BitcodeErrorCategoryType : public std::error_category {
+ const char *name() const LLVM_NOEXCEPT override {
return "llvm.bitcode";
}
std::string message(int IE) const override {
};
}
-const error_category &BitcodeReader::BitcodeErrorCategory() {
+const std::error_category &BitcodeReader::BitcodeErrorCategory() {
static BitcodeErrorCategoryType O;
return O;
}
Module *M = new Module(Buffer->getBufferIdentifier(), Context);
BitcodeReader *R = new BitcodeReader(Buffer, Context);
M->setMaterializer(R);
- if (error_code EC = R->ParseBitcodeInto(M)) {
+ if (std::error_code EC = R->ParseBitcodeInto(M)) {
+ R->releaseBuffer(); // Never take ownership on error.
delete M; // Also deletes R.
return EC;
}
- // Have the BitcodeReader dtor delete 'Buffer'.
- R->setBufferOwned(true);
R->materializeForwardReferencedFunctions();
Module *M = new Module(name, Context);
BitcodeReader *R = new BitcodeReader(streamer, Context);
M->setMaterializer(R);
- if (error_code EC = R->ParseBitcodeInto(M)) {
+ if (std::error_code EC = R->ParseBitcodeInto(M)) {
if (ErrMsg)
*ErrMsg = EC.message();
delete M; // Also deletes R.
return nullptr;
}
- R->setBufferOwned(false); // no buffer to delete
return M;
}
if (!ModuleOrErr)
return ModuleOrErr;
Module *M = ModuleOrErr.get();
-
- // Don't let the BitcodeReader dtor delete 'Buffer', regardless of whether
- // there was an error.
- static_cast<BitcodeReader*>(M->getMaterializer())->setBufferOwned(false);
-
// Read in the entire module, and destroy the BitcodeReader.
- if (error_code EC = M->materializeAllPermanently()) {
+ if (std::error_code EC = M->materializeAllPermanently(true)) {
delete M;
return EC;
}
}
std::string llvm::getBitcodeTargetTriple(MemoryBuffer *Buffer,
- LLVMContext& Context,
- std::string *ErrMsg) {
+ LLVMContext &Context) {
BitcodeReader *R = new BitcodeReader(Buffer, Context);
- // Don't let the BitcodeReader dtor delete 'Buffer'.
- R->setBufferOwned(false);
-
- std::string Triple("");
- if (error_code EC = R->ParseTriple(Triple))
- if (ErrMsg)
- *ErrMsg = EC.message();
-
+ ErrorOr<std::string> Triple = R->parseTriple();
+ R->releaseBuffer();
delete R;
- return Triple;
+ if (Triple.getError())
+ return "";
+ return Triple.get();
}
projects / oota-llvm.git / blobdiff