#include "BitcodeReader.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/AutoUpgrade.h"
#include "llvm/Bitcode/LLVMBitCodes.h"
+#include "llvm/IR/AutoUpgrade.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/InlineAsm.h"
void BitcodeReader::FreeState() {
if (BufferOwned)
delete Buffer;
- Buffer = 0;
+ Buffer = nullptr;
std::vector<Type*>().swap(TypeList);
ValueList.clear();
MDValueList.clear();
case 2: return GlobalValue::AppendingLinkage;
case 3: return GlobalValue::InternalLinkage;
case 4: return GlobalValue::LinkOnceAnyLinkage;
- case 5: return GlobalValue::DLLImportLinkage;
- case 6: return GlobalValue::DLLExportLinkage;
+ case 5: return GlobalValue::ExternalLinkage; // Obsolete DLLImportLinkage
+ case 6: return GlobalValue::ExternalLinkage; // Obsolete DLLExportLinkage
case 7: return GlobalValue::ExternalWeakLinkage;
case 8: return GlobalValue::CommonLinkage;
case 9: return GlobalValue::PrivateLinkage;
case 10: return GlobalValue::WeakODRLinkage;
case 11: return GlobalValue::LinkOnceODRLinkage;
case 12: return GlobalValue::AvailableExternallyLinkage;
- case 13: return GlobalValue::LinkerPrivateLinkage;
- case 14: return GlobalValue::LinkerPrivateWeakLinkage;
+ case 13:
+ return GlobalValue::PrivateLinkage; // Obsolete LinkerPrivateLinkage
+ case 14:
+ return GlobalValue::PrivateLinkage; // Obsolete LinkerPrivateWeakLinkage
}
}
}
}
+static GlobalValue::DLLStorageClassTypes
+GetDecodedDLLStorageClass(unsigned Val) {
+ switch (Val) {
+ default: // Map unknown values to default.
+ case 0: return GlobalValue::DefaultStorageClass;
+ case 1: return GlobalValue::DLLImportStorageClass;
+ case 2: return GlobalValue::DLLExportStorageClass;
+ }
+}
+
static GlobalVariable::ThreadLocalMode GetDecodedThreadLocalMode(unsigned Val) {
switch (Val) {
case 0: return GlobalVariable::NotThreadLocal;
}
}
+static void UpgradeDLLImportExportLinkage(llvm::GlobalValue *GV, unsigned Val) {
+ switch (Val) {
+ case 5: GV->setDLLStorageClass(GlobalValue::DLLImportStorageClass); break;
+ case 6: GV->setDLLStorageClass(GlobalValue::DLLExportStorageClass); break;
+ }
+}
+
namespace llvm {
namespace {
/// @brief A class for maintaining the slot number definition
resize(Idx+1);
WeakVH &OldV = ValuePtrs[Idx];
- if (OldV == 0) {
+ if (!OldV) {
OldV = V;
return;
}
resize(Idx + 1);
if (Value *V = ValuePtrs[Idx]) {
- assert((Ty == 0 || Ty == V->getType()) && "Type mismatch in value table!");
+ assert((!Ty || Ty == V->getType()) && "Type mismatch in value table!");
return V;
}
// No type specified, must be invalid reference.
- if (Ty == 0) return 0;
+ if (!Ty) return nullptr;
// Create and return a placeholder, which will later be RAUW'd.
Value *V = new Argument(Ty);
// new value. If they reference more than one placeholder, update them all
// at once.
while (!Placeholder->use_empty()) {
- Value::use_iterator UI = Placeholder->use_begin();
+ auto UI = Placeholder->user_begin();
User *U = *UI;
// If the using object isn't uniqued, just update the operands. This
resize(Idx+1);
WeakVH &OldV = MDValuePtrs[Idx];
- if (OldV == 0) {
+ if (!OldV) {
OldV = V;
return;
}
Type *BitcodeReader::getTypeByID(unsigned ID) {
// The type table size is always specified correctly.
if (ID >= TypeList.size())
- return 0;
+ return nullptr;
if (Type *Ty = TypeList[ID])
return Ty;
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return 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::NoInline;
case bitc::ATTR_KIND_NON_LAZY_BIND:
return Attribute::NonLazyBind;
+ case bitc::ATTR_KIND_NON_NULL:
+ return Attribute::NonNull;
case bitc::ATTR_KIND_NO_RED_ZONE:
return Attribute::NoRedZone;
case bitc::ATTR_KIND_NO_RETURN:
*Kind = GetAttrFromCode(Code);
if (*Kind == Attribute::None)
return Error(InvalidValue);
- return error_code::success();
+ return error_code();
}
error_code BitcodeReader::ParseAttributeGroupBlock() {
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
case BitstreamEntry::EndBlock:
if (NumRecords != TypeList.size())
return Error(MalformedBlock);
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
// Read a record.
Record.clear();
- Type *ResultTy = 0;
+ Type *ResultTy = nullptr;
switch (Stream.readRecord(Entry.ID, Record)) {
default:
return Error(InvalidValue);
if (Record.size() == 2)
AddressSpace = Record[1];
ResultTy = getTypeByID(Record[0]);
- if (ResultTy == 0)
+ if (!ResultTy)
return Error(InvalidType);
ResultTy = PointerType::get(ResultTy, AddressSpace);
break;
}
ResultTy = getTypeByID(Record[2]);
- if (ResultTy == 0 || ArgTys.size() < Record.size()-3)
+ if (!ResultTy || ArgTys.size() < Record.size()-3)
return Error(InvalidType);
ResultTy = FunctionType::get(ResultTy, ArgTys, Record[0]);
}
ResultTy = getTypeByID(Record[1]);
- if (ResultTy == 0 || ArgTys.size() < Record.size()-2)
+ if (!ResultTy || ArgTys.size() < Record.size()-2)
return Error(InvalidType);
ResultTy = FunctionType::get(ResultTy, ArgTys, Record[0]);
StructType *Res = cast_or_null<StructType>(TypeList[NumRecords]);
if (Res) {
Res->setName(TypeName);
- TypeList[NumRecords] = 0;
+ TypeList[NumRecords] = nullptr;
} else // Otherwise, create a new struct.
Res = StructType::create(Context, TypeName);
TypeName.clear();
StructType *Res = cast_or_null<StructType>(TypeList[NumRecords]);
if (Res) {
Res->setName(TypeName);
- TypeList[NumRecords] = 0;
+ TypeList[NumRecords] = nullptr;
} else // Otherwise, create a new struct with no body.
Res = StructType::create(Context, TypeName);
TypeName.clear();
if (NumRecords >= TypeList.size())
return Error(InvalidTYPETable);
assert(ResultTy && "Didn't read a type?");
- assert(TypeList[NumRecords] == 0 && "Already read type?");
+ assert(!TypeList[NumRecords] && "Already read type?");
TypeList[NumRecords++] = ResultTy;
}
}
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
if (ConvertToString(Record, 1, ValueName))
return Error(InvalidRecord);
unsigned ValueID = Record[0];
- if (ValueID >= ValueList.size())
+ if (ValueID >= ValueList.size() || !ValueList[ValueID])
return Error(InvalidRecord);
Value *V = ValueList[ValueID];
if (ConvertToString(Record, 1, ValueName))
return Error(InvalidRecord);
BasicBlock *BB = getBasicBlock(Record[0]);
- if (BB == 0)
+ if (!BB)
return Error(InvalidRecord);
BB->setName(StringRef(ValueName.data(), ValueName.size()));
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
unsigned Size = Record.size();
NamedMDNode *NMD = TheModule->getOrInsertNamedMetadata(Name);
for (unsigned i = 0; i != Size; ++i) {
- MDNode *MD = dyn_cast<MDNode>(MDValueList.getValueFwdRef(Record[i]));
- if (MD == 0)
+ MDNode *MD = dyn_cast_or_null<MDNode>(MDValueList.getValueFwdRef(Record[i]));
+ if (!MD)
return Error(InvalidRecord);
NMD->addOperand(MD);
}
else if (!Ty->isVoidTy())
Elts.push_back(ValueList.getValueFwdRef(Record[i+1], Ty));
else
- Elts.push_back(NULL);
+ Elts.push_back(nullptr);
}
Value *V = MDNode::getWhenValsUnresolved(Context, Elts, IsFunctionLocal);
IsFunctionLocal = false;
// Not ready to resolve this yet, it requires something later in the file.
GlobalInits.push_back(GlobalInitWorklist.back());
} else {
- if (Constant *C = dyn_cast<Constant>(ValueList[ValID]))
+ if (Constant *C = dyn_cast_or_null<Constant>(ValueList[ValID]))
GlobalInitWorklist.back().first->setInitializer(C);
else
return Error(ExpectedConstant);
if (ValID >= ValueList.size()) {
AliasInits.push_back(AliasInitWorklist.back());
} else {
- if (Constant *C = dyn_cast<Constant>(ValueList[ValID]))
+ if (Constant *C = dyn_cast_or_null<Constant>(ValueList[ValID]))
AliasInitWorklist.back().first->setAliasee(C);
else
return Error(ExpectedConstant);
if (ValID >= ValueList.size()) {
FunctionPrefixes.push_back(FunctionPrefixWorklist.back());
} else {
- if (Constant *C = dyn_cast<Constant>(ValueList[ValID]))
+ if (Constant *C = dyn_cast_or_null<Constant>(ValueList[ValID]))
FunctionPrefixWorklist.back().first->setPrefixData(C);
else
return Error(ExpectedConstant);
FunctionPrefixWorklist.pop_back();
}
- return error_code::success();
+ return error_code();
}
static APInt ReadWideAPInt(ArrayRef<uint64_t> Vals, unsigned TypeBits) {
// Once all the constants have been read, go through and resolve forward
// references.
ValueList.ResolveConstantForwardRefs();
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
// Read a record.
Record.clear();
- Value *V = 0;
+ Value *V = nullptr;
unsigned BitCode = Stream.readRecord(Entry.ID, Record);
switch (BitCode) {
default: // Default behavior: unknown constant
case bitc::CST_CODE_SETTYPE: // SETTYPE: [typeid]
if (Record.empty())
return Error(InvalidRecord);
- if (Record[0] >= TypeList.size())
+ if (Record[0] >= TypeList.size() || !TypeList[Record[0]])
return Error(InvalidRecord);
CurTy = TypeList[Record[0]];
continue; // Skip the ValueList manipulation.
ValueList.getConstantFwdRef(Record[2],CurTy));
break;
}
- case bitc::CST_CODE_CE_EXTRACTELT: { // CE_EXTRACTELT: [opty, opval, opval]
+ case bitc::CST_CODE_CE_EXTRACTELT
+ : { // CE_EXTRACTELT: [opty, opval, opty, opval]
if (Record.size() < 3)
return Error(InvalidRecord);
VectorType *OpTy =
dyn_cast_or_null<VectorType>(getTypeByID(Record[0]));
- if (OpTy == 0)
+ if (!OpTy)
return Error(InvalidRecord);
Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
- Constant *Op1 = ValueList.getConstantFwdRef(Record[2],
- Type::getInt32Ty(Context));
+ Constant *Op1 = nullptr;
+ if (Record.size() == 4) {
+ Type *IdxTy = getTypeByID(Record[2]);
+ if (!IdxTy)
+ return Error(InvalidRecord);
+ Op1 = ValueList.getConstantFwdRef(Record[3], IdxTy);
+ } else // TODO: Remove with llvm 4.0
+ Op1 = ValueList.getConstantFwdRef(Record[2], Type::getInt32Ty(Context));
+ if (!Op1)
+ return Error(InvalidRecord);
V = ConstantExpr::getExtractElement(Op0, Op1);
break;
}
- case bitc::CST_CODE_CE_INSERTELT: { // CE_INSERTELT: [opval, opval, opval]
+ case bitc::CST_CODE_CE_INSERTELT
+ : { // CE_INSERTELT: [opval, opval, opty, opval]
VectorType *OpTy = dyn_cast<VectorType>(CurTy);
- if (Record.size() < 3 || OpTy == 0)
+ if (Record.size() < 3 || !OpTy)
return Error(InvalidRecord);
Constant *Op0 = ValueList.getConstantFwdRef(Record[0], OpTy);
Constant *Op1 = ValueList.getConstantFwdRef(Record[1],
OpTy->getElementType());
- Constant *Op2 = ValueList.getConstantFwdRef(Record[2],
- Type::getInt32Ty(Context));
+ Constant *Op2 = nullptr;
+ if (Record.size() == 4) {
+ Type *IdxTy = getTypeByID(Record[2]);
+ if (!IdxTy)
+ return Error(InvalidRecord);
+ Op2 = ValueList.getConstantFwdRef(Record[3], IdxTy);
+ } else // TODO: Remove with llvm 4.0
+ Op2 = ValueList.getConstantFwdRef(Record[2], Type::getInt32Ty(Context));
+ if (!Op2)
+ return Error(InvalidRecord);
V = ConstantExpr::getInsertElement(Op0, Op1, Op2);
break;
}
case bitc::CST_CODE_CE_SHUFFLEVEC: { // CE_SHUFFLEVEC: [opval, opval, opval]
VectorType *OpTy = dyn_cast<VectorType>(CurTy);
- if (Record.size() < 3 || OpTy == 0)
+ if (Record.size() < 3 || !OpTy)
return Error(InvalidRecord);
Constant *Op0 = ValueList.getConstantFwdRef(Record[0], OpTy);
Constant *Op1 = ValueList.getConstantFwdRef(Record[1], OpTy);
VectorType *RTy = dyn_cast<VectorType>(CurTy);
VectorType *OpTy =
dyn_cast_or_null<VectorType>(getTypeByID(Record[0]));
- if (Record.size() < 4 || RTy == 0 || OpTy == 0)
+ if (Record.size() < 4 || !RTy || !OpTy)
return Error(InvalidRecord);
Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
Constant *Op1 = ValueList.getConstantFwdRef(Record[2], OpTy);
if (Record.size() < 4)
return Error(InvalidRecord);
Type *OpTy = getTypeByID(Record[0]);
- if (OpTy == 0)
+ if (!OpTy)
return Error(InvalidRecord);
Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
Constant *Op1 = ValueList.getConstantFwdRef(Record[2], OpTy);
if (Record.size() < 3)
return Error(InvalidRecord);
Type *FnTy = getTypeByID(Record[0]);
- if (FnTy == 0)
+ if (!FnTy)
return Error(InvalidRecord);
Function *Fn =
dyn_cast_or_null<Function>(ValueList.getConstantFwdRef(Record[1],FnTy));
- if (Fn == 0)
+ if (!Fn)
return Error(InvalidRecord);
// If the function is already parsed we can insert the block address right
GlobalVariable *FwdRef = new GlobalVariable(*Fn->getParent(),
Type::getInt8Ty(Context),
false, GlobalValue::InternalLinkage,
- 0, "");
+ nullptr, "");
BlockAddrFwdRefs[Fn].push_back(std::make_pair(Record[2], FwdRef));
V = FwdRef;
}
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
// Skip over the function block for now.
if (Stream.SkipBlock())
return Error(InvalidRecord);
- return error_code::success();
+ return error_code();
}
error_code BitcodeReader::GlobalCleanup() {
// Look for global variables which need to be renamed.
for (Module::global_iterator
GI = TheModule->global_begin(), GE = TheModule->global_end();
- GI != GE; ++GI)
- UpgradeGlobalVariable(GI);
+ GI != GE;) {
+ GlobalVariable *GV = GI++;
+ UpgradeGlobalVariable(GV);
+ }
+
// Force deallocation of memory for these vectors to favor the client that
// want lazy deserialization.
std::vector<std::pair<GlobalVariable*, unsigned> >().swap(GlobalInits);
std::vector<std::pair<GlobalAlias*, unsigned> >().swap(AliasInits);
- return error_code::success();
+ return error_code();
}
error_code BitcodeReader::ParseModule(bool Resume) {
// just finish the parse now.
if (LazyStreamer && SeenValueSymbolTable) {
NextUnreadBit = Stream.GetCurrentBitNo();
- return error_code::success();
+ return error_code();
}
break;
case bitc::USELIST_BLOCK_ID:
}
// GLOBALVAR: [pointer type, isconst, initid,
// linkage, alignment, section, visibility, threadlocal,
- // unnamed_addr]
+ // unnamed_addr, dllstorageclass]
case bitc::MODULE_CODE_GLOBALVAR: {
if (Record.size() < 6)
return Error(InvalidRecord);
Section = SectionTable[Record[5]-1];
}
GlobalValue::VisibilityTypes Visibility = GlobalValue::DefaultVisibility;
- if (Record.size() > 6)
+ // Local linkage must have default visibility.
+ if (Record.size() > 6 && !GlobalValue::isLocalLinkage(Linkage))
+ // FIXME: Change to an error if non-default in 4.0.
Visibility = GetDecodedVisibility(Record[6]);
GlobalVariable::ThreadLocalMode TLM = GlobalVariable::NotThreadLocal;
ExternallyInitialized = Record[9];
GlobalVariable *NewGV =
- new GlobalVariable(*TheModule, Ty, isConstant, Linkage, 0, "", 0,
+ new GlobalVariable(*TheModule, Ty, isConstant, Linkage, nullptr, "", nullptr,
TLM, AddressSpace, ExternallyInitialized);
NewGV->setAlignment(Alignment);
if (!Section.empty())
NewGV->setVisibility(Visibility);
NewGV->setUnnamedAddr(UnnamedAddr);
+ if (Record.size() > 10)
+ NewGV->setDLLStorageClass(GetDecodedDLLStorageClass(Record[10]));
+ else
+ UpgradeDLLImportExportLinkage(NewGV, Record[3]);
+
ValueList.push_back(NewGV);
// Remember which value to use for the global initializer.
break;
}
// FUNCTION: [type, callingconv, isproto, linkage, paramattr,
- // alignment, section, visibility, gc, unnamed_addr]
+ // alignment, section, visibility, gc, unnamed_addr,
+ // dllstorageclass]
case bitc::MODULE_CODE_FUNCTION: {
if (Record.size() < 8)
return Error(InvalidRecord);
return Error(InvalidID);
Func->setSection(SectionTable[Record[6]-1]);
}
- Func->setVisibility(GetDecodedVisibility(Record[7]));
+ // Local linkage must have default visibility.
+ if (!Func->hasLocalLinkage())
+ // FIXME: Change to an error if non-default in 4.0.
+ Func->setVisibility(GetDecodedVisibility(Record[7]));
if (Record.size() > 8 && Record[8]) {
if (Record[8]-1 > GCTable.size())
return Error(InvalidID);
Func->setUnnamedAddr(UnnamedAddr);
if (Record.size() > 10 && Record[10] != 0)
FunctionPrefixes.push_back(std::make_pair(Func, Record[10]-1));
+
+ if (Record.size() > 11)
+ Func->setDLLStorageClass(GetDecodedDLLStorageClass(Record[11]));
+ else
+ UpgradeDLLImportExportLinkage(Func, Record[3]);
+
ValueList.push_back(Func);
// If this is a function with a body, remember the prototype we are
break;
}
// ALIAS: [alias type, aliasee val#, linkage]
- // ALIAS: [alias type, aliasee val#, linkage, visibility]
+ // ALIAS: [alias type, aliasee val#, linkage, visibility, dllstorageclass]
case bitc::MODULE_CODE_ALIAS: {
if (Record.size() < 3)
return Error(InvalidRecord);
Type *Ty = getTypeByID(Record[0]);
if (!Ty)
return Error(InvalidRecord);
- if (!Ty->isPointerTy())
+ auto *PTy = dyn_cast<PointerType>(Ty);
+ if (!PTy)
return Error(InvalidTypeForValue);
- GlobalAlias *NewGA = new GlobalAlias(Ty, GetDecodedLinkage(Record[2]),
- "", 0, TheModule);
+ auto *NewGA =
+ GlobalAlias::create(PTy->getElementType(), PTy->getAddressSpace(),
+ GetDecodedLinkage(Record[2]), "", TheModule);
// Old bitcode files didn't have visibility field.
- if (Record.size() > 3)
+ // Local linkage must have default visibility.
+ if (Record.size() > 3 && !NewGA->hasLocalLinkage())
+ // FIXME: Change to an error if non-default in 4.0.
NewGA->setVisibility(GetDecodedVisibility(Record[3]));
+ if (Record.size() > 4)
+ NewGA->setDLLStorageClass(GetDecodedDLLStorageClass(Record[4]));
+ else
+ 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) {
- TheModule = 0;
+ TheModule = nullptr;
if (error_code EC = InitStream())
return EC;
// need to understand them all.
while (1) {
if (Stream.AtEndOfStream())
- return error_code::success();
+ return error_code();
BitstreamEntry Entry =
Stream.advance(BitstreamCursor::AF_DontAutoprocessAbbrevs);
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::SubBlock:
switch (Entry.ID) {
if (error_code EC = ParseModule(false))
return EC;
if (LazyStreamer)
- return error_code::success();
+ return 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::success();
+ return error_code();
return Error(InvalidRecord);
}
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::SubBlock:
if (Entry.ID == bitc::MODULE_BLOCK_ID)
case BitstreamEntry::Error:
return Error(MalformedBlock);
case BitstreamEntry::EndBlock:
- return error_code::success();
+ return error_code();
case BitstreamEntry::Record:
// The interesting case.
break;
ValueList.push_back(I);
unsigned NextValueNo = ValueList.size();
- BasicBlock *CurBB = 0;
+ BasicBlock *CurBB = nullptr;
unsigned CurBBNo = 0;
DebugLoc LastLoc;
// Read a record.
Record.clear();
- Instruction *I = 0;
+ Instruction *I = nullptr;
unsigned BitCode = Stream.readRecord(Entry.ID, Record);
switch (BitCode) {
default: // Default behavior: reject
case bitc::FUNC_CODE_DEBUG_LOC_AGAIN: // DEBUG_LOC_AGAIN
// This record indicates that the last instruction is at the same
// location as the previous instruction with a location.
- I = 0;
+ I = nullptr;
// Get the last instruction emitted.
if (CurBB && !CurBB->empty())
!FunctionBBs[CurBBNo-1]->empty())
I = &FunctionBBs[CurBBNo-1]->back();
- if (I == 0)
+ if (!I)
return Error(InvalidRecord);
I->setDebugLoc(LastLoc);
- I = 0;
+ I = nullptr;
continue;
case bitc::FUNC_CODE_DEBUG_LOC: { // DEBUG_LOC: [line, col, scope, ia]
- I = 0; // Get the last instruction emitted.
+ I = nullptr; // Get the last instruction emitted.
if (CurBB && !CurBB->empty())
I = &CurBB->back();
else if (CurBBNo && FunctionBBs[CurBBNo-1] &&
!FunctionBBs[CurBBNo-1]->empty())
I = &FunctionBBs[CurBBNo-1]->back();
- if (I == 0 || Record.size() < 4)
+ if (!I || Record.size() < 4)
return Error(InvalidRecord);
unsigned Line = Record[0], Col = Record[1];
unsigned ScopeID = Record[2], IAID = Record[3];
- MDNode *Scope = 0, *IA = 0;
+ MDNode *Scope = nullptr, *IA = nullptr;
if (ScopeID) Scope = cast<MDNode>(MDValueList.getValueFwdRef(ScopeID-1));
if (IAID) IA = cast<MDNode>(MDValueList.getValueFwdRef(IAID-1));
LastLoc = DebugLoc::get(Line, Col, Scope, IA);
I->setDebugLoc(LastLoc);
- I = 0;
+ I = nullptr;
continue;
}
Type *ResTy = getTypeByID(Record[OpNum]);
int Opc = GetDecodedCastOpcode(Record[OpNum+1]);
- if (Opc == -1 || ResTy == 0)
+ if (Opc == -1 || !ResTy)
return Error(InvalidRecord);
- Instruction *Temp = 0;
+ Instruction *Temp = nullptr;
if ((I = UpgradeBitCastInst(Opc, Op, ResTy, Temp))) {
if (Temp) {
InstructionList.push_back(Temp);
unsigned OpNum = 0;
Value *Vec, *Idx;
if (getValueTypePair(Record, OpNum, NextValueNo, Vec) ||
- popValue(Record, OpNum, NextValueNo, Type::getInt32Ty(Context), Idx))
+ getValueTypePair(Record, OpNum, NextValueNo, Idx))
return Error(InvalidRecord);
I = ExtractElementInst::Create(Vec, Idx);
InstructionList.push_back(I);
if (getValueTypePair(Record, OpNum, NextValueNo, Vec) ||
popValue(Record, OpNum, NextValueNo,
cast<VectorType>(Vec->getType())->getElementType(), Elt) ||
- popValue(Record, OpNum, NextValueNo, Type::getInt32Ty(Context), Idx))
+ getValueTypePair(Record, OpNum, NextValueNo, Idx))
return Error(InvalidRecord);
I = InsertElementInst::Create(Vec, Elt, Idx);
InstructionList.push_back(I);
}
unsigned OpNum = 0;
- Value *Op = NULL;
+ Value *Op = nullptr;
if (getValueTypePair(Record, OpNum, NextValueNo, Op))
return Error(InvalidRecord);
if (OpNum != Record.size())
if (Record.size() != 1 && Record.size() != 3)
return Error(InvalidRecord);
BasicBlock *TrueDest = getBasicBlock(Record[0]);
- if (TrueDest == 0)
+ if (!TrueDest)
return Error(InvalidRecord);
if (Record.size() == 1) {
BasicBlock *FalseDest = getBasicBlock(Record[1]);
Value *Cond = getValue(Record, 2, NextValueNo,
Type::getInt1Ty(Context));
- if (FalseDest == 0 || Cond == 0)
+ if (!FalseDest || !Cond)
return Error(InvalidRecord);
I = BranchInst::Create(TrueDest, FalseDest, Cond);
InstructionList.push_back(I);
Value *Cond = getValue(Record, 2, NextValueNo, OpTy);
BasicBlock *Default = getBasicBlock(Record[3]);
- if (OpTy == 0 || Cond == 0 || Default == 0)
+ if (!OpTy || !Cond || !Default)
return Error(InvalidRecord);
unsigned NumCases = Record[4];
Type *OpTy = getTypeByID(Record[0]);
Value *Cond = getValue(Record, 1, NextValueNo, OpTy);
BasicBlock *Default = getBasicBlock(Record[2]);
- if (OpTy == 0 || Cond == 0 || Default == 0)
+ if (!OpTy || !Cond || !Default)
return Error(InvalidRecord);
unsigned NumCases = (Record.size()-3)/2;
SwitchInst *SI = SwitchInst::Create(Cond, Default, NumCases);
ConstantInt *CaseVal =
dyn_cast_or_null<ConstantInt>(getFnValueByID(Record[3+i*2], OpTy));
BasicBlock *DestBB = getBasicBlock(Record[1+3+i*2]);
- if (CaseVal == 0 || DestBB == 0) {
+ if (!CaseVal || !DestBB) {
delete SI;
return Error(InvalidRecord);
}
return Error(InvalidRecord);
Type *OpTy = getTypeByID(Record[0]);
Value *Address = getValue(Record, 1, NextValueNo, OpTy);
- if (OpTy == 0 || Address == 0)
+ if (!OpTy || !Address)
return Error(InvalidRecord);
unsigned NumDests = Record.size()-2;
IndirectBrInst *IBI = IndirectBrInst::Create(Address, NumDests);
return Error(InvalidRecord);
PointerType *CalleeTy = dyn_cast<PointerType>(Callee->getType());
- FunctionType *FTy = !CalleeTy ? 0 :
+ FunctionType *FTy = !CalleeTy ? nullptr :
dyn_cast<FunctionType>(CalleeTy->getElementType());
// Check that the right number of fixed parameters are here.
- if (FTy == 0 || NormalBB == 0 || UnwindBB == 0 ||
+ if (!FTy || !NormalBB || !UnwindBB ||
Record.size() < OpNum+FTy->getNumParams())
return Error(InvalidRecord);
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i, ++OpNum) {
Ops.push_back(getValue(Record, OpNum, NextValueNo,
FTy->getParamType(i)));
- if (Ops.back() == 0)
+ if (!Ops.back())
return Error(InvalidRecord);
}
}
case bitc::FUNC_CODE_INST_RESUME: { // RESUME: [opval]
unsigned Idx = 0;
- Value *Val = 0;
+ Value *Val = nullptr;
if (getValueTypePair(Record, Idx, NextValueNo, Val))
return Error(InvalidRecord);
I = ResumeInst::Create(Val);
Type *Ty = getTypeByID(Record[Idx++]);
if (!Ty)
return Error(InvalidRecord);
- Value *PersFn = 0;
+ Value *PersFn = nullptr;
if (getValueTypePair(Record, Idx, NextValueNo, PersFn))
return Error(InvalidRecord);
assert((CT != LandingPadInst::Filter ||
isa<ArrayType>(Val->getType())) &&
"Filter clause has invalid type!");
- LP->addClause(Val);
+ LP->addClause(cast<Constant>(Val));
}
I = LP;
break;
}
case bitc::FUNC_CODE_INST_CMPXCHG: {
- // CMPXCHG:[ptrty, ptr, cmp, new, vol, ordering, synchscope]
+ // CMPXCHG:[ptrty, ptr, cmp, new, vol, successordering, synchscope,
+ // failureordering]
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 + 3 != Record.size() && OpNum + 4 != Record.size()))
return Error(InvalidRecord);
- AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+1]);
- if (Ordering == NotAtomic || Ordering == Unordered)
+ AtomicOrdering SuccessOrdering = GetDecodedOrdering(Record[OpNum+1]);
+ if (SuccessOrdering == NotAtomic || SuccessOrdering == Unordered)
return Error(InvalidRecord);
SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+2]);
- I = new AtomicCmpXchgInst(Ptr, Cmp, New, Ordering, SynchScope);
+
+ AtomicOrdering FailureOrdering;
+ if (Record.size() < 7)
+ FailureOrdering =
+ AtomicCmpXchgInst::getStrongestFailureOrdering(SuccessOrdering);
+ else
+ FailureOrdering = GetDecodedOrdering(Record[OpNum+3]);
+
+ I = new AtomicCmpXchgInst(Ptr, Cmp, New, SuccessOrdering, FailureOrdering,
+ SynchScope);
cast<AtomicCmpXchgInst>(I)->setVolatile(Record[OpNum]);
InstructionList.push_back(I);
break;
return Error(InvalidRecord);
PointerType *OpTy = dyn_cast<PointerType>(Callee->getType());
- FunctionType *FTy = 0;
+ FunctionType *FTy = nullptr;
if (OpTy) FTy = dyn_cast<FunctionType>(OpTy->getElementType());
if (!FTy || Record.size() < FTy->getNumParams()+OpNum)
return Error(InvalidRecord);
else
Args.push_back(getValue(Record, OpNum, NextValueNo,
FTy->getParamType(i)));
- if (Args.back() == 0)
+ if (!Args.back())
return Error(InvalidRecord);
}
I = CallInst::Create(Callee, Args);
InstructionList.push_back(I);
cast<CallInst>(I)->setCallingConv(
- static_cast<CallingConv::ID>(CCInfo>>1));
- cast<CallInst>(I)->setTailCall(CCInfo & 1);
+ static_cast<CallingConv::ID>((~(1U << 14) & CCInfo) >> 1));
+ CallInst::TailCallKind TCK = CallInst::TCK_None;
+ if (CCInfo & 1)
+ TCK = CallInst::TCK_Tail;
+ if (CCInfo & (1 << 14))
+ TCK = CallInst::TCK_MustTail;
+ cast<CallInst>(I)->setTailCallKind(TCK);
cast<CallInst>(I)->setAttributes(PAL);
break;
}
// Add instruction to end of current BB. If there is no current BB, reject
// this file.
- if (CurBB == 0) {
+ if (!CurBB) {
delete I;
return Error(InvalidInstructionWithNoBB);
}
// If this was a terminator instruction, move to the next block.
if (isa<TerminatorInst>(I)) {
++CurBBNo;
- CurBB = CurBBNo < FunctionBBs.size() ? FunctionBBs[CurBBNo] : 0;
+ CurBB = CurBBNo < FunctionBBs.size() ? FunctionBBs[CurBBNo] : nullptr;
}
// Non-void values get registered in the value table for future use.
// Check the function list for unresolved values.
if (Argument *A = dyn_cast<Argument>(ValueList.back())) {
- if (A->getParent() == 0) {
+ if (!A->getParent()) {
// We found at least one unresolved value. Nuke them all to avoid leaks.
for (unsigned i = ModuleValueListSize, e = ValueList.size(); i != e; ++i){
- if ((A = dyn_cast<Argument>(ValueList[i])) && A->getParent() == 0) {
+ if ((A = dyn_cast_or_null<Argument>(ValueList[i])) && !A->getParent()) {
A->replaceAllUsesWith(UndefValue::get(A->getType()));
delete A;
}
ValueList.shrinkTo(ModuleValueListSize);
MDValueList.shrinkTo(ModuleMDValueListSize);
std::vector<BasicBlock*>().swap(FunctionBBs);
- return error_code::success();
+ return error_code();
}
/// Find the function body in the bitcode stream
if (error_code EC = ParseModule(true))
return EC;
}
- return error_code::success();
+ return error_code();
}
//===----------------------------------------------------------------------===//
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::success();
+ return error_code();
DenseMap<Function*, uint64_t>::iterator DFII = DeferredFunctionInfo.find(F);
assert(DFII != DeferredFunctionInfo.end() && "Deferred function not found!");
for (UpgradedIntrinsicMap::iterator I = UpgradedIntrinsics.begin(),
E = UpgradedIntrinsics.end(); I != E; ++I) {
if (I->first != I->second) {
- for (Value::use_iterator UI = I->first->use_begin(),
- UE = I->first->use_end(); UI != UE; ) {
+ for (auto UI = I->first->user_begin(), UE = I->first->user_end();
+ UI != UE;) {
if (CallInst* CI = dyn_cast<CallInst>(*UI++))
UpgradeIntrinsicCall(CI, I->second);
}
}
}
- return error_code::success();
+ return error_code();
}
bool BitcodeReader::isDematerializable(const GlobalValue *GV) const {
for (std::vector<std::pair<Function*, Function*> >::iterator I =
UpgradedIntrinsics.begin(), E = UpgradedIntrinsics.end(); I != E; ++I) {
if (I->first != I->second) {
- for (Value::use_iterator UI = I->first->use_begin(),
- UE = I->first->use_end(); UI != UE; ) {
+ for (auto UI = I->first->user_begin(), UE = I->first->user_end();
+ UI != UE;) {
if (CallInst* CI = dyn_cast<CallInst>(*UI++))
UpgradeIntrinsicCall(CI, I->second);
}
UpgradeInstWithTBAATag(InstsWithTBAATag[I]);
UpgradeDebugInfo(*M);
- return error_code::success();
+ return error_code();
}
error_code BitcodeReader::InitStream() {
StreamFile.reset(new BitstreamReader(BufPtr, BufEnd));
Stream.init(*StreamFile);
- return error_code::success();
+ return error_code();
}
error_code BitcodeReader::InitLazyStream() {
Bytes->dropLeadingBytes(bitcodeStart - buf);
Bytes->setKnownObjectSize(bitcodeEnd - bitcodeStart);
}
- return error_code::success();
+ return error_code();
}
namespace {
-class BitcodeErrorCategoryType : public _do_message {
- const char *name() const LLVM_OVERRIDE {
+class BitcodeErrorCategoryType : public std::error_category {
+ const char *name() const LLVM_NOEXCEPT override {
return "llvm.bitcode";
}
- std::string message(int IE) const LLVM_OVERRIDE {
+ std::string message(int IE) const override {
BitcodeReader::ErrorType E = static_cast<BitcodeReader::ErrorType>(IE);
switch (E) {
case BitcodeReader::BitcodeStreamInvalidSize:
};
}
-const error_category &BitcodeReader::BitcodeErrorCategory() {
+const std::error_category &BitcodeReader::BitcodeErrorCategory() {
static BitcodeErrorCategoryType O;
return O;
}
/// getLazyBitcodeModule - lazy function-at-a-time loading from a file.
///
-Module *llvm::getLazyBitcodeModule(MemoryBuffer *Buffer,
- LLVMContext& Context,
- std::string *ErrMsg) {
+ErrorOr<Module *> llvm::getLazyBitcodeModule(MemoryBuffer *Buffer,
+ LLVMContext &Context) {
Module *M = new Module(Buffer->getBufferIdentifier(), Context);
BitcodeReader *R = new BitcodeReader(Buffer, Context);
M->setMaterializer(R);
if (error_code EC = R->ParseBitcodeInto(M)) {
- if (ErrMsg)
- *ErrMsg = EC.message();
-
delete M; // Also deletes R.
- return 0;
+ return EC;
}
// Have the BitcodeReader dtor delete 'Buffer'.
R->setBufferOwned(true);
if (ErrMsg)
*ErrMsg = EC.message();
delete M; // Also deletes R.
- return 0;
+ return nullptr;
}
R->setBufferOwned(false); // no buffer to delete
return M;
}
-/// ParseBitcodeFile - Read the specified bitcode file, returning the module.
-/// If an error occurs, return null and fill in *ErrMsg if non-null.
-Module *llvm::ParseBitcodeFile(MemoryBuffer *Buffer, LLVMContext& Context,
- std::string *ErrMsg){
- Module *M = getLazyBitcodeModule(Buffer, Context, ErrMsg);
- if (!M) return 0;
+ErrorOr<Module *> llvm::parseBitcodeFile(MemoryBuffer *Buffer,
+ LLVMContext &Context) {
+ ErrorOr<Module *> ModuleOrErr = getLazyBitcodeModule(Buffer, Context);
+ 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 (M->MaterializeAllPermanently(ErrMsg)) {
+ if (error_code EC = M->materializeAllPermanently()) {
delete M;
- return 0;
+ return EC;
}
// TODO: Restore the use-lists to the in-memory state when the bitcode was
projects / oota-llvm.git / blobdiff