#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/IntrinsicInst.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/Metadata.h"
#include "llvm/Module.h"
#include "llvm/Operator.h"
#include "llvm/AutoUpgrade.h"
using namespace llvm;
void BitcodeReader::FreeState() {
- delete Buffer;
+ if (BufferOwned)
+ delete Buffer;
Buffer = 0;
- std::vector<PATypeHolder>().swap(TypeList);
+ std::vector<Type*>().swap(TypeList);
ValueList.clear();
MDValueList.clear();
std::vector<BasicBlock*>().swap(FunctionBBs);
std::vector<Function*>().swap(FunctionsWithBodies);
DeferredFunctionInfo.clear();
+ MDKindMap.clear();
}
//===----------------------------------------------------------------------===//
case 11: return GlobalValue::LinkOnceODRLinkage;
case 12: return GlobalValue::AvailableExternallyLinkage;
case 13: return GlobalValue::LinkerPrivateLinkage;
+ case 14: return GlobalValue::LinkerPrivateWeakLinkage;
+ case 15: return GlobalValue::LinkerPrivateWeakDefAutoLinkage;
}
}
case bitc::CAST_BITCAST : return Instruction::BitCast;
}
}
-static int GetDecodedBinaryOpcode(unsigned Val, const Type *Ty) {
+static int GetDecodedBinaryOpcode(unsigned Val, Type *Ty) {
switch (Val) {
default: return -1;
case bitc::BINOP_ADD:
- return Ty->isFPOrFPVector() ? Instruction::FAdd : Instruction::Add;
+ return Ty->isFPOrFPVectorTy() ? Instruction::FAdd : Instruction::Add;
case bitc::BINOP_SUB:
- return Ty->isFPOrFPVector() ? Instruction::FSub : Instruction::Sub;
+ return Ty->isFPOrFPVectorTy() ? Instruction::FSub : Instruction::Sub;
case bitc::BINOP_MUL:
- return Ty->isFPOrFPVector() ? Instruction::FMul : Instruction::Mul;
+ return Ty->isFPOrFPVectorTy() ? Instruction::FMul : Instruction::Mul;
case bitc::BINOP_UDIV: return Instruction::UDiv;
case bitc::BINOP_SDIV:
- return Ty->isFPOrFPVector() ? Instruction::FDiv : Instruction::SDiv;
+ return Ty->isFPOrFPVectorTy() ? Instruction::FDiv : Instruction::SDiv;
case bitc::BINOP_UREM: return Instruction::URem;
case bitc::BINOP_SREM:
- return Ty->isFPOrFPVector() ? Instruction::FRem : Instruction::SRem;
+ return Ty->isFPOrFPVectorTy() ? Instruction::FRem : Instruction::SRem;
case bitc::BINOP_SHL: return Instruction::Shl;
case bitc::BINOP_LSHR: return Instruction::LShr;
case bitc::BINOP_ASHR: return Instruction::AShr;
}
}
+static AtomicRMWInst::BinOp GetDecodedRMWOperation(unsigned Val) {
+ switch (Val) {
+ default: return AtomicRMWInst::BAD_BINOP;
+ case bitc::RMW_XCHG: return AtomicRMWInst::Xchg;
+ case bitc::RMW_ADD: return AtomicRMWInst::Add;
+ case bitc::RMW_SUB: return AtomicRMWInst::Sub;
+ case bitc::RMW_AND: return AtomicRMWInst::And;
+ case bitc::RMW_NAND: return AtomicRMWInst::Nand;
+ case bitc::RMW_OR: return AtomicRMWInst::Or;
+ case bitc::RMW_XOR: return AtomicRMWInst::Xor;
+ case bitc::RMW_MAX: return AtomicRMWInst::Max;
+ case bitc::RMW_MIN: return AtomicRMWInst::Min;
+ case bitc::RMW_UMAX: return AtomicRMWInst::UMax;
+ case bitc::RMW_UMIN: return AtomicRMWInst::UMin;
+ }
+}
+
+static AtomicOrdering GetDecodedOrdering(unsigned Val) {
+ switch (Val) {
+ case bitc::ORDERING_NOTATOMIC: return NotAtomic;
+ case bitc::ORDERING_UNORDERED: return Unordered;
+ case bitc::ORDERING_MONOTONIC: return Monotonic;
+ case bitc::ORDERING_ACQUIRE: return Acquire;
+ case bitc::ORDERING_RELEASE: return Release;
+ case bitc::ORDERING_ACQREL: return AcquireRelease;
+ default: // Map unknown orderings to sequentially-consistent.
+ case bitc::ORDERING_SEQCST: return SequentiallyConsistent;
+ }
+}
+
+static SynchronizationScope GetDecodedSynchScope(unsigned Val) {
+ switch (Val) {
+ case bitc::SYNCHSCOPE_SINGLETHREAD: return SingleThread;
+ default: // Map unknown scopes to cross-thread.
+ case bitc::SYNCHSCOPE_CROSSTHREAD: return CrossThread;
+ }
+}
+
namespace llvm {
namespace {
/// @brief A class for maintaining the slot number definition
/// as a placeholder for the actual definition for forward constants defs.
class ConstantPlaceHolder : public ConstantExpr {
- ConstantPlaceHolder(); // DO NOT IMPLEMENT
void operator=(const ConstantPlaceHolder &); // DO NOT IMPLEMENT
public:
// allocate space for exactly one operand
void *operator new(size_t s) {
return User::operator new(s, 1);
}
- explicit ConstantPlaceHolder(const Type *Ty, LLVMContext& Context)
+ explicit ConstantPlaceHolder(Type *Ty, LLVMContext& Context)
: ConstantExpr(Ty, Instruction::UserOp1, &Op<0>(), 1) {
Op<0>() = UndefValue::get(Type::getInt32Ty(Context));
}
/// @brief Methods to support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const ConstantPlaceHolder *) { return true; }
+ //static inline bool classof(const ConstantPlaceHolder *) { return true; }
static bool classof(const Value *V) {
return isa<ConstantExpr>(V) &&
cast<ConstantExpr>(V)->getOpcode() == Instruction::UserOp1;
// FIXME: can we inherit this from ConstantExpr?
template <>
-struct OperandTraits<ConstantPlaceHolder> : public FixedNumOperandTraits<1> {
+struct OperandTraits<ConstantPlaceHolder> :
+ public FixedNumOperandTraits<ConstantPlaceHolder, 1> {
};
}
Constant *BitcodeReaderValueList::getConstantFwdRef(unsigned Idx,
- const Type *Ty) {
+ Type *Ty) {
if (Idx >= size())
resize(Idx + 1);
return C;
}
-Value *BitcodeReaderValueList::getValueFwdRef(unsigned Idx, const Type *Ty) {
+Value *BitcodeReaderValueList::getValueFwdRef(unsigned Idx, Type *Ty) {
if (Idx >= size())
resize(Idx + 1);
// at once.
while (!Placeholder->use_empty()) {
Value::use_iterator UI = Placeholder->use_begin();
+ User *U = *UI;
// If the using object isn't uniqued, just update the operands. This
// handles instructions and initializers for global variables.
- if (!isa<Constant>(*UI) || isa<GlobalValue>(*UI)) {
+ if (!isa<Constant>(U) || isa<GlobalValue>(U)) {
UI.getUse().set(RealVal);
continue;
}
// Otherwise, we have a constant that uses the placeholder. Replace that
// constant with a new constant that has *all* placeholder uses updated.
- Constant *UserC = cast<Constant>(*UI);
+ Constant *UserC = cast<Constant>(U);
for (User::op_iterator I = UserC->op_begin(), E = UserC->op_end();
I != E; ++I) {
Value *NewOp;
// Make the new constant.
Constant *NewC;
if (ConstantArray *UserCA = dyn_cast<ConstantArray>(UserC)) {
- NewC = ConstantArray::get(UserCA->getType(), &NewOps[0],
- NewOps.size());
+ NewC = ConstantArray::get(UserCA->getType(), NewOps);
} else if (ConstantStruct *UserCS = dyn_cast<ConstantStruct>(UserC)) {
- NewC = ConstantStruct::get(Context, &NewOps[0], NewOps.size(),
- UserCS->getType()->isPacked());
+ NewC = ConstantStruct::get(UserCS->getType(), NewOps);
} else if (isa<ConstantVector>(UserC)) {
- NewC = ConstantVector::get(&NewOps[0], NewOps.size());
+ NewC = ConstantVector::get(NewOps);
} else {
assert(isa<ConstantExpr>(UserC) && "Must be a ConstantExpr.");
- NewC = cast<ConstantExpr>(UserC)->getWithOperands(&NewOps[0],
- NewOps.size());
+ NewC = cast<ConstantExpr>(UserC)->getWithOperands(NewOps);
}
UserC->replaceAllUsesWith(NewC);
}
// If there was a forward reference to this value, replace it.
- Value *PrevVal = OldV;
+ MDNode *PrevVal = cast<MDNode>(OldV);
OldV->replaceAllUsesWith(V);
- delete PrevVal;
+ MDNode::deleteTemporary(PrevVal);
// Deleting PrevVal sets Idx value in MDValuePtrs to null. Set new
// value for Idx.
MDValuePtrs[Idx] = V;
}
// Create and return a placeholder, which will later be RAUW'd.
- Value *V = new Argument(Type::getMetadataTy(Context));
+ Value *V = MDNode::getTemporary(Context, ArrayRef<Value*>());
MDValuePtrs[Idx] = V;
return V;
}
-const Type *BitcodeReader::getTypeByID(unsigned ID, bool isTypeTable) {
- // If the TypeID is in range, return it.
- if (ID < TypeList.size())
- return TypeList[ID].get();
- if (!isTypeTable) return 0;
-
- // The type table allows forward references. Push as many Opaque types as
- // needed to get up to ID.
- while (TypeList.size() <= ID)
- TypeList.push_back(OpaqueType::get(Context));
- return TypeList.back().get();
+Type *BitcodeReader::getTypeByID(unsigned ID) {
+ // The type table size is always specified correctly.
+ if (ID >= TypeList.size())
+ return 0;
+
+ if (Type *Ty = TypeList[ID])
+ return Ty;
+
+ // If we have a forward reference, the only possible case is when it is to a
+ // named struct. Just create a placeholder for now.
+ return TypeList[ID] = StructType::create(Context);
+}
+
+/// FIXME: Remove in LLVM 3.1, only used by ParseOldTypeTable.
+Type *BitcodeReader::getTypeByIDOrNull(unsigned ID) {
+ if (ID >= TypeList.size())
+ TypeList.resize(ID+1);
+
+ return TypeList[ID];
}
+
//===----------------------------------------------------------------------===//
// Functions for parsing blocks from the bitcode file
//===----------------------------------------------------------------------===//
}
}
-
bool BitcodeReader::ParseTypeTable() {
- if (Stream.EnterSubBlock(bitc::TYPE_BLOCK_ID))
+ if (Stream.EnterSubBlock(bitc::TYPE_BLOCK_ID_NEW))
return Error("Malformed block record");
+
+ return ParseTypeTableBody();
+}
+bool BitcodeReader::ParseTypeTableBody() {
if (!TypeList.empty())
return Error("Multiple TYPE_BLOCKs found!");
SmallVector<uint64_t, 64> Record;
unsigned NumRecords = 0;
+ SmallString<64> TypeName;
+
// Read all the records for this type table.
while (1) {
unsigned Code = Stream.ReadCode();
// Read a record.
Record.clear();
- const Type *ResultTy = 0;
+ Type *ResultTy = 0;
switch (Stream.ReadRecord(Code, Record)) {
- default: // Default behavior: unknown type.
- ResultTy = 0;
- break;
+ default: return Error("unknown type in type table");
case bitc::TYPE_CODE_NUMENTRY: // TYPE_CODE_NUMENTRY: [numentries]
// TYPE_CODE_NUMENTRY contains a count of the number of types in the
// type list. This allows us to reserve space.
if (Record.size() < 1)
return Error("Invalid TYPE_CODE_NUMENTRY record");
- TypeList.reserve(Record[0]);
+ TypeList.resize(Record[0]);
continue;
case bitc::TYPE_CODE_VOID: // VOID
ResultTy = Type::getVoidTy(Context);
case bitc::TYPE_CODE_LABEL: // LABEL
ResultTy = Type::getLabelTy(Context);
break;
- case bitc::TYPE_CODE_OPAQUE: // OPAQUE
- ResultTy = 0;
- break;
case bitc::TYPE_CODE_METADATA: // METADATA
ResultTy = Type::getMetadataTy(Context);
break;
+ case bitc::TYPE_CODE_X86_MMX: // X86_MMX
+ ResultTy = Type::getX86_MMXTy(Context);
+ break;
case bitc::TYPE_CODE_INTEGER: // INTEGER: [width]
if (Record.size() < 1)
return Error("Invalid Integer type record");
unsigned AddressSpace = 0;
if (Record.size() == 2)
AddressSpace = Record[1];
- ResultTy = PointerType::get(getTypeByID(Record[0], true),
- AddressSpace);
+ ResultTy = getTypeByID(Record[0]);
+ if (ResultTy == 0) return Error("invalid element type in pointer type");
+ ResultTy = PointerType::get(ResultTy, AddressSpace);
break;
}
case bitc::TYPE_CODE_FUNCTION: {
// FUNCTION: [vararg, attrid, retty, paramty x N]
if (Record.size() < 3)
return Error("Invalid FUNCTION type record");
- std::vector<const Type*> ArgTys;
- for (unsigned i = 3, e = Record.size(); i != e; ++i)
- ArgTys.push_back(getTypeByID(Record[i], true));
+ std::vector<Type*> ArgTys;
+ for (unsigned i = 3, e = Record.size(); i != e; ++i) {
+ if (Type *T = getTypeByID(Record[i]))
+ ArgTys.push_back(T);
+ else
+ break;
+ }
+
+ ResultTy = getTypeByID(Record[2]);
+ if (ResultTy == 0 || ArgTys.size() < Record.size()-3)
+ return Error("invalid type in function type");
- ResultTy = FunctionType::get(getTypeByID(Record[2], true), ArgTys,
- Record[0]);
+ ResultTy = FunctionType::get(ResultTy, ArgTys, Record[0]);
break;
}
- case bitc::TYPE_CODE_STRUCT: { // STRUCT: [ispacked, eltty x N]
+ case bitc::TYPE_CODE_STRUCT_ANON: { // STRUCT: [ispacked, eltty x N]
if (Record.size() < 1)
return Error("Invalid STRUCT type record");
- std::vector<const Type*> EltTys;
- for (unsigned i = 1, e = Record.size(); i != e; ++i)
- EltTys.push_back(getTypeByID(Record[i], true));
+ std::vector<Type*> EltTys;
+ for (unsigned i = 1, e = Record.size(); i != e; ++i) {
+ if (Type *T = getTypeByID(Record[i]))
+ EltTys.push_back(T);
+ else
+ break;
+ }
+ if (EltTys.size() != Record.size()-1)
+ return Error("invalid type in struct type");
ResultTy = StructType::get(Context, EltTys, Record[0]);
break;
}
+ case bitc::TYPE_CODE_STRUCT_NAME: // STRUCT_NAME: [strchr x N]
+ if (ConvertToString(Record, 0, TypeName))
+ return Error("Invalid STRUCT_NAME record");
+ continue;
+
+ case bitc::TYPE_CODE_STRUCT_NAMED: { // STRUCT: [ispacked, eltty x N]
+ if (Record.size() < 1)
+ return Error("Invalid STRUCT type record");
+
+ if (NumRecords >= TypeList.size())
+ return Error("invalid TYPE table");
+
+ // Check to see if this was forward referenced, if so fill in the temp.
+ StructType *Res = cast_or_null<StructType>(TypeList[NumRecords]);
+ if (Res) {
+ Res->setName(TypeName);
+ TypeList[NumRecords] = 0;
+ } else // Otherwise, create a new struct.
+ Res = StructType::create(Context, TypeName);
+ TypeName.clear();
+
+ SmallVector<Type*, 8> EltTys;
+ for (unsigned i = 1, e = Record.size(); i != e; ++i) {
+ if (Type *T = getTypeByID(Record[i]))
+ EltTys.push_back(T);
+ else
+ break;
+ }
+ if (EltTys.size() != Record.size()-1)
+ return Error("invalid STRUCT type record");
+ Res->setBody(EltTys, Record[0]);
+ ResultTy = Res;
+ break;
+ }
+ case bitc::TYPE_CODE_OPAQUE: { // OPAQUE: []
+ if (Record.size() != 1)
+ return Error("Invalid OPAQUE type record");
+
+ if (NumRecords >= TypeList.size())
+ return Error("invalid TYPE table");
+
+ // Check to see if this was forward referenced, if so fill in the temp.
+ StructType *Res = cast_or_null<StructType>(TypeList[NumRecords]);
+ if (Res) {
+ Res->setName(TypeName);
+ TypeList[NumRecords] = 0;
+ } else // Otherwise, create a new struct with no body.
+ Res = StructType::create(Context, TypeName);
+ TypeName.clear();
+ ResultTy = Res;
+ break;
+ }
case bitc::TYPE_CODE_ARRAY: // ARRAY: [numelts, eltty]
if (Record.size() < 2)
return Error("Invalid ARRAY type record");
- ResultTy = ArrayType::get(getTypeByID(Record[1], true), Record[0]);
+ if ((ResultTy = getTypeByID(Record[1])))
+ ResultTy = ArrayType::get(ResultTy, Record[0]);
+ else
+ return Error("Invalid ARRAY type element");
break;
case bitc::TYPE_CODE_VECTOR: // VECTOR: [numelts, eltty]
if (Record.size() < 2)
return Error("Invalid VECTOR type record");
- ResultTy = VectorType::get(getTypeByID(Record[1], true), Record[0]);
+ if ((ResultTy = getTypeByID(Record[1])))
+ ResultTy = VectorType::get(ResultTy, Record[0]);
+ else
+ return Error("Invalid ARRAY type element");
break;
}
- if (NumRecords == TypeList.size()) {
- // If this is a new type slot, just append it.
- TypeList.push_back(ResultTy ? ResultTy : OpaqueType::get(Context));
- ++NumRecords;
- } else if (ResultTy == 0) {
- // Otherwise, this was forward referenced, so an opaque type was created,
- // but the result type is actually just an opaque. Leave the one we
- // created previously.
- ++NumRecords;
- } else {
- // Otherwise, this was forward referenced, so an opaque type was created.
- // Resolve the opaque type to the real type now.
- assert(NumRecords < TypeList.size() && "Typelist imbalance");
- const OpaqueType *OldTy = cast<OpaqueType>(TypeList[NumRecords++].get());
-
- // Don't directly push the new type on the Tab. Instead we want to replace
- // the opaque type we previously inserted with the new concrete value. The
- // refinement from the abstract (opaque) type to the new type causes all
- // uses of the abstract type to use the concrete type (NewTy). This will
- // also cause the opaque type to be deleted.
- const_cast<OpaqueType*>(OldTy)->refineAbstractTypeTo(ResultTy);
-
- // This should have replaced the old opaque type with the new type in the
- // value table... or with a preexisting type that was already in the
- // system. Let's just make sure it did.
- assert(TypeList[NumRecords-1].get() != OldTy &&
- "refineAbstractType didn't work!");
+ if (NumRecords >= TypeList.size())
+ return Error("invalid TYPE table");
+ assert(ResultTy && "Didn't read a type?");
+ assert(TypeList[NumRecords] == 0 && "Already read type?");
+ TypeList[NumRecords++] = ResultTy;
+ }
+}
+
+// FIXME: Remove in LLVM 3.1
+bool BitcodeReader::ParseOldTypeTable() {
+ if (Stream.EnterSubBlock(bitc::TYPE_BLOCK_ID_OLD))
+ return Error("Malformed block record");
+
+ if (!TypeList.empty())
+ return Error("Multiple TYPE_BLOCKs found!");
+
+
+ // While horrible, we have no good ordering of types in the bc file. Just
+ // iteratively parse types out of the bc file in multiple passes until we get
+ // them all. Do this by saving a cursor for the start of the type block.
+ BitstreamCursor StartOfTypeBlockCursor(Stream);
+
+ unsigned NumTypesRead = 0;
+
+ SmallVector<uint64_t, 64> Record;
+RestartScan:
+ unsigned NextTypeID = 0;
+ bool ReadAnyTypes = false;
+
+ // Read all the records for this type table.
+ while (1) {
+ unsigned Code = Stream.ReadCode();
+ if (Code == bitc::END_BLOCK) {
+ if (NextTypeID != TypeList.size())
+ return Error("Invalid type forward reference in TYPE_BLOCK_ID_OLD");
+
+ // If we haven't read all of the types yet, iterate again.
+ if (NumTypesRead != TypeList.size()) {
+ // If we didn't successfully read any types in this pass, then we must
+ // have an unhandled forward reference.
+ if (!ReadAnyTypes)
+ return Error("Obsolete bitcode contains unhandled recursive type");
+
+ Stream = StartOfTypeBlockCursor;
+ goto RestartScan;
+ }
+
+ if (Stream.ReadBlockEnd())
+ return Error("Error at end of type table block");
+ return false;
+ }
+
+ if (Code == bitc::ENTER_SUBBLOCK) {
+ // No known subblocks, always skip them.
+ Stream.ReadSubBlockID();
+ if (Stream.SkipBlock())
+ return Error("Malformed block record");
+ continue;
+ }
+
+ if (Code == bitc::DEFINE_ABBREV) {
+ Stream.ReadAbbrevRecord();
+ continue;
+ }
+
+ // Read a record.
+ Record.clear();
+ Type *ResultTy = 0;
+ switch (Stream.ReadRecord(Code, Record)) {
+ default: return Error("unknown type in type table");
+ case bitc::TYPE_CODE_NUMENTRY: // TYPE_CODE_NUMENTRY: [numentries]
+ // TYPE_CODE_NUMENTRY contains a count of the number of types in the
+ // type list. This allows us to reserve space.
+ if (Record.size() < 1)
+ return Error("Invalid TYPE_CODE_NUMENTRY record");
+ TypeList.resize(Record[0]);
+ continue;
+ case bitc::TYPE_CODE_VOID: // VOID
+ ResultTy = Type::getVoidTy(Context);
+ break;
+ case bitc::TYPE_CODE_FLOAT: // FLOAT
+ ResultTy = Type::getFloatTy(Context);
+ break;
+ case bitc::TYPE_CODE_DOUBLE: // DOUBLE
+ ResultTy = Type::getDoubleTy(Context);
+ break;
+ case bitc::TYPE_CODE_X86_FP80: // X86_FP80
+ ResultTy = Type::getX86_FP80Ty(Context);
+ break;
+ case bitc::TYPE_CODE_FP128: // FP128
+ ResultTy = Type::getFP128Ty(Context);
+ break;
+ case bitc::TYPE_CODE_PPC_FP128: // PPC_FP128
+ ResultTy = Type::getPPC_FP128Ty(Context);
+ break;
+ case bitc::TYPE_CODE_LABEL: // LABEL
+ ResultTy = Type::getLabelTy(Context);
+ break;
+ case bitc::TYPE_CODE_METADATA: // METADATA
+ ResultTy = Type::getMetadataTy(Context);
+ break;
+ case bitc::TYPE_CODE_X86_MMX: // X86_MMX
+ ResultTy = Type::getX86_MMXTy(Context);
+ break;
+ case bitc::TYPE_CODE_INTEGER: // INTEGER: [width]
+ if (Record.size() < 1)
+ return Error("Invalid Integer type record");
+ ResultTy = IntegerType::get(Context, Record[0]);
+ break;
+ case bitc::TYPE_CODE_OPAQUE: // OPAQUE
+ if (NextTypeID < TypeList.size() && TypeList[NextTypeID] == 0)
+ ResultTy = StructType::create(Context);
+ break;
+ case bitc::TYPE_CODE_STRUCT_OLD: {// STRUCT_OLD
+ if (NextTypeID >= TypeList.size()) break;
+ // If we already read it, don't reprocess.
+ if (TypeList[NextTypeID] &&
+ !cast<StructType>(TypeList[NextTypeID])->isOpaque())
+ break;
+
+ // Set a type.
+ if (TypeList[NextTypeID] == 0)
+ TypeList[NextTypeID] = StructType::create(Context);
+
+ std::vector<Type*> EltTys;
+ for (unsigned i = 1, e = Record.size(); i != e; ++i) {
+ if (Type *Elt = getTypeByIDOrNull(Record[i]))
+ EltTys.push_back(Elt);
+ else
+ break;
+ }
+
+ if (EltTys.size() != Record.size()-1)
+ break; // Not all elements are ready.
+
+ cast<StructType>(TypeList[NextTypeID])->setBody(EltTys, Record[0]);
+ ResultTy = TypeList[NextTypeID];
+ TypeList[NextTypeID] = 0;
+ break;
+ }
+ case bitc::TYPE_CODE_POINTER: { // POINTER: [pointee type] or
+ // [pointee type, address space]
+ if (Record.size() < 1)
+ return Error("Invalid POINTER type record");
+ unsigned AddressSpace = 0;
+ if (Record.size() == 2)
+ AddressSpace = Record[1];
+ if ((ResultTy = getTypeByIDOrNull(Record[0])))
+ ResultTy = PointerType::get(ResultTy, AddressSpace);
+ break;
}
+ case bitc::TYPE_CODE_FUNCTION: {
+ // FIXME: attrid is dead, remove it in LLVM 3.0
+ // FUNCTION: [vararg, attrid, retty, paramty x N]
+ if (Record.size() < 3)
+ return Error("Invalid FUNCTION type record");
+ std::vector<Type*> ArgTys;
+ for (unsigned i = 3, e = Record.size(); i != e; ++i) {
+ if (Type *Elt = getTypeByIDOrNull(Record[i]))
+ ArgTys.push_back(Elt);
+ else
+ break;
+ }
+ if (ArgTys.size()+3 != Record.size())
+ break; // Something was null.
+ if ((ResultTy = getTypeByIDOrNull(Record[2])))
+ ResultTy = FunctionType::get(ResultTy, ArgTys, Record[0]);
+ break;
+ }
+ case bitc::TYPE_CODE_ARRAY: // ARRAY: [numelts, eltty]
+ if (Record.size() < 2)
+ return Error("Invalid ARRAY type record");
+ if ((ResultTy = getTypeByIDOrNull(Record[1])))
+ ResultTy = ArrayType::get(ResultTy, Record[0]);
+ break;
+ case bitc::TYPE_CODE_VECTOR: // VECTOR: [numelts, eltty]
+ if (Record.size() < 2)
+ return Error("Invalid VECTOR type record");
+ if ((ResultTy = getTypeByIDOrNull(Record[1])))
+ ResultTy = VectorType::get(ResultTy, Record[0]);
+ break;
+ }
+
+ if (NextTypeID >= TypeList.size())
+ return Error("invalid TYPE table");
+
+ if (ResultTy && TypeList[NextTypeID] == 0) {
+ ++NumTypesRead;
+ ReadAnyTypes = true;
+
+ TypeList[NextTypeID] = ResultTy;
+ }
+
+ ++NextTypeID;
}
}
-bool BitcodeReader::ParseTypeSymbolTable() {
- if (Stream.EnterSubBlock(bitc::TYPE_SYMTAB_BLOCK_ID))
+bool BitcodeReader::ParseOldTypeSymbolTable() {
+ if (Stream.EnterSubBlock(bitc::TYPE_SYMTAB_BLOCK_ID_OLD))
return Error("Malformed block record");
SmallVector<uint64_t, 64> Record;
if (TypeID >= TypeList.size())
return Error("Invalid Type ID in TST_ENTRY record");
- TheModule->addTypeName(TypeName, TypeList[TypeID].get());
+ // Only apply the type name to a struct type with no name.
+ if (StructType *STy = dyn_cast<StructType>(TypeList[TypeID]))
+ if (!STy->isLiteral() && !STy->hasName())
+ STy->setName(TypeName);
TypeName.clear();
break;
}
}
bool BitcodeReader::ParseMetadata() {
- unsigned NextValueNo = MDValueList.size();
+ unsigned NextMDValueNo = MDValueList.size();
if (Stream.EnterSubBlock(bitc::METADATA_BLOCK_ID))
return Error("Malformed block record");
continue;
}
+ bool IsFunctionLocal = false;
// Read a record.
Record.clear();
- switch (Stream.ReadRecord(Code, Record)) {
+ Code = Stream.ReadRecord(Code, Record);
+ switch (Code) {
default: // Default behavior: ignore.
break;
case bitc::METADATA_NAME: {
Code = Stream.ReadCode();
// METADATA_NAME is always followed by METADATA_NAMED_NODE.
- if (Stream.ReadRecord(Code, Record) != bitc::METADATA_NAMED_NODE)
- assert ( 0 && "Inavlid Named Metadata record");
+ unsigned NextBitCode = Stream.ReadRecord(Code, Record);
+ assert(NextBitCode == bitc::METADATA_NAMED_NODE); (void)NextBitCode;
// Read named metadata elements.
unsigned Size = Record.size();
- SmallVector<MetadataBase*, 8> Elts;
+ NamedMDNode *NMD = TheModule->getOrInsertNamedMetadata(Name);
for (unsigned i = 0; i != Size; ++i) {
- Value *MD = MDValueList.getValueFwdRef(Record[i]);
- if (MetadataBase *B = dyn_cast<MetadataBase>(MD))
- Elts.push_back(B);
+ MDNode *MD = dyn_cast<MDNode>(MDValueList.getValueFwdRef(Record[i]));
+ if (MD == 0)
+ return Error("Malformed metadata record");
+ NMD->addOperand(MD);
}
- Value *V = NamedMDNode::Create(Context, Name.str(), Elts.data(),
- Elts.size(), TheModule);
- MDValueList.AssignValue(V, NextValueNo++);
break;
}
+ case bitc::METADATA_FN_NODE:
+ IsFunctionLocal = true;
+ // fall-through
case bitc::METADATA_NODE: {
- if (Record.empty() || Record.size() % 2 == 1)
+ if (Record.size() % 2 == 1)
return Error("Invalid METADATA_NODE record");
unsigned Size = Record.size();
SmallVector<Value*, 8> Elts;
for (unsigned i = 0; i != Size; i += 2) {
- const Type *Ty = getTypeByID(Record[i], false);
+ Type *Ty = getTypeByID(Record[i]);
+ if (!Ty) return Error("Invalid METADATA_NODE record");
if (Ty->isMetadataTy())
Elts.push_back(MDValueList.getValueFwdRef(Record[i+1]));
- else if (Ty != Type::getVoidTy(Context))
+ else if (!Ty->isVoidTy())
Elts.push_back(ValueList.getValueFwdRef(Record[i+1], Ty));
else
Elts.push_back(NULL);
}
- Value *V = MDNode::get(Context, &Elts[0], Elts.size());
- MDValueList.AssignValue(V, NextValueNo++);
+ Value *V = MDNode::getWhenValsUnresolved(Context, Elts, IsFunctionLocal);
+ IsFunctionLocal = false;
+ MDValueList.AssignValue(V, NextMDValueNo++);
break;
}
case bitc::METADATA_STRING: {
String[i] = Record[i];
Value *V = MDString::get(Context,
StringRef(String.data(), String.size()));
- MDValueList.AssignValue(V, NextValueNo++);
+ MDValueList.AssignValue(V, NextMDValueNo++);
break;
}
case bitc::METADATA_KIND: {
SmallString<8> Name;
Name.resize(RecordLength-1);
unsigned Kind = Record[0];
- (void) Kind;
for (unsigned i = 1; i != RecordLength; ++i)
Name[i-1] = Record[i];
- MetadataContext &TheMetadata = Context.getMetadata();
- unsigned ExistingKind = TheMetadata.getMDKind(Name.str());
- if (ExistingKind == 0) {
- unsigned NewKind = TheMetadata.registerMDKind(Name.str());
- (void) NewKind;
- assert (Kind == NewKind
- && "Unable to handle custom metadata mismatch!");
- } else {
- assert (ExistingKind == Kind
- && "Unable to handle custom metadata mismatch!");
- }
+
+ unsigned NewKind = TheModule->getMDKindID(Name.str());
+ if (!MDKindMap.insert(std::make_pair(Kind, NewKind)).second)
+ return Error("Conflicting METADATA_KIND records");
break;
}
}
SmallVector<uint64_t, 64> Record;
// Read all the records for this value table.
- const Type *CurTy = Type::getInt32Ty(Context);
+ Type *CurTy = Type::getInt32Ty(Context);
unsigned NextCstNo = ValueList.size();
while (1) {
unsigned Code = Stream.ReadCode();
V = Constant::getNullValue(CurTy);
break;
case bitc::CST_CODE_INTEGER: // INTEGER: [intval]
- if (!isa<IntegerType>(CurTy) || Record.empty())
+ if (!CurTy->isIntegerTy() || Record.empty())
return Error("Invalid CST_INTEGER record");
V = ConstantInt::get(CurTy, DecodeSignRotatedValue(Record[0]));
break;
case bitc::CST_CODE_WIDE_INTEGER: {// WIDE_INTEGER: [n x intval]
- if (!isa<IntegerType>(CurTy) || Record.empty())
+ if (!CurTy->isIntegerTy() || Record.empty())
return Error("Invalid WIDE_INTEGER record");
unsigned NumWords = Record.size();
Words[i] = DecodeSignRotatedValue(Record[i]);
V = ConstantInt::get(Context,
APInt(cast<IntegerType>(CurTy)->getBitWidth(),
- NumWords, &Words[0]));
+ Words));
break;
}
case bitc::CST_CODE_FLOAT: { // FLOAT: [fpval]
uint64_t Rearrange[2];
Rearrange[0] = (Record[1] & 0xffffLL) | (Record[0] << 16);
Rearrange[1] = Record[0] >> 48;
- V = ConstantFP::get(Context, APFloat(APInt(80, 2, Rearrange)));
+ V = ConstantFP::get(Context, APFloat(APInt(80, Rearrange)));
} else if (CurTy->isFP128Ty())
- V = ConstantFP::get(Context, APFloat(APInt(128, 2, &Record[0]), true));
+ V = ConstantFP::get(Context, APFloat(APInt(128, Record), true));
else if (CurTy->isPPC_FP128Ty())
- V = ConstantFP::get(Context, APFloat(APInt(128, 2, &Record[0])));
+ V = ConstantFP::get(Context, APFloat(APInt(128, Record)));
else
V = UndefValue::get(CurTy);
break;
unsigned Size = Record.size();
std::vector<Constant*> Elts;
- if (const StructType *STy = dyn_cast<StructType>(CurTy)) {
+ if (StructType *STy = dyn_cast<StructType>(CurTy)) {
for (unsigned i = 0; i != Size; ++i)
Elts.push_back(ValueList.getConstantFwdRef(Record[i],
STy->getElementType(i)));
V = ConstantStruct::get(STy, Elts);
- } else if (const ArrayType *ATy = dyn_cast<ArrayType>(CurTy)) {
- const Type *EltTy = ATy->getElementType();
+ } else if (ArrayType *ATy = dyn_cast<ArrayType>(CurTy)) {
+ Type *EltTy = ATy->getElementType();
for (unsigned i = 0; i != Size; ++i)
Elts.push_back(ValueList.getConstantFwdRef(Record[i], EltTy));
V = ConstantArray::get(ATy, Elts);
- } else if (const VectorType *VTy = dyn_cast<VectorType>(CurTy)) {
- const Type *EltTy = VTy->getElementType();
+ } else if (VectorType *VTy = dyn_cast<VectorType>(CurTy)) {
+ Type *EltTy = VTy->getElementType();
for (unsigned i = 0; i != Size; ++i)
Elts.push_back(ValueList.getConstantFwdRef(Record[i], EltTy));
V = ConstantVector::get(Elts);
if (Record.empty())
return Error("Invalid CST_AGGREGATE record");
- const ArrayType *ATy = cast<ArrayType>(CurTy);
- const Type *EltTy = ATy->getElementType();
+ ArrayType *ATy = cast<ArrayType>(CurTy);
+ Type *EltTy = ATy->getElementType();
unsigned Size = Record.size();
std::vector<Constant*> Elts;
if (Record.empty())
return Error("Invalid CST_AGGREGATE record");
- const ArrayType *ATy = cast<ArrayType>(CurTy);
- const Type *EltTy = ATy->getElementType();
+ ArrayType *ATy = cast<ArrayType>(CurTy);
+ Type *EltTy = ATy->getElementType();
unsigned Size = Record.size();
std::vector<Constant*> Elts;
if (Record.size() >= 4) {
if (Opc == Instruction::Add ||
Opc == Instruction::Sub ||
- Opc == Instruction::Mul) {
+ Opc == Instruction::Mul ||
+ Opc == Instruction::Shl) {
if (Record[3] & (1 << bitc::OBO_NO_SIGNED_WRAP))
Flags |= OverflowingBinaryOperator::NoSignedWrap;
if (Record[3] & (1 << bitc::OBO_NO_UNSIGNED_WRAP))
Flags |= OverflowingBinaryOperator::NoUnsignedWrap;
- } else if (Opc == Instruction::SDiv) {
- if (Record[3] & (1 << bitc::SDIV_EXACT))
+ } else if (Opc == Instruction::SDiv ||
+ Opc == Instruction::UDiv ||
+ Opc == Instruction::LShr ||
+ Opc == Instruction::AShr) {
+ if (Record[3] & (1 << bitc::PEO_EXACT))
Flags |= SDivOperator::IsExact;
}
}
if (Opc < 0) {
V = UndefValue::get(CurTy); // Unknown cast.
} else {
- const Type *OpTy = getTypeByID(Record[1]);
+ Type *OpTy = getTypeByID(Record[1]);
if (!OpTy) return Error("Invalid CE_CAST record");
Constant *Op = ValueList.getConstantFwdRef(Record[2], OpTy);
V = ConstantExpr::getCast(Opc, Op, CurTy);
if (Record.size() & 1) return Error("Invalid CE_GEP record");
SmallVector<Constant*, 16> Elts;
for (unsigned i = 0, e = Record.size(); i != e; i += 2) {
- const Type *ElTy = getTypeByID(Record[i]);
+ Type *ElTy = getTypeByID(Record[i]);
if (!ElTy) return Error("Invalid CE_GEP record");
Elts.push_back(ValueList.getConstantFwdRef(Record[i+1], ElTy));
}
- if (BitCode == bitc::CST_CODE_CE_INBOUNDS_GEP)
- V = ConstantExpr::getInBoundsGetElementPtr(Elts[0], &Elts[1],
- Elts.size()-1);
- else
- V = ConstantExpr::getGetElementPtr(Elts[0], &Elts[1],
- Elts.size()-1);
+ ArrayRef<Constant *> Indices(Elts.begin() + 1, Elts.end());
+ V = ConstantExpr::getGetElementPtr(Elts[0], Indices,
+ BitCode ==
+ bitc::CST_CODE_CE_INBOUNDS_GEP);
break;
}
case bitc::CST_CODE_CE_SELECT: // CE_SELECT: [opval#, opval#, opval#]
break;
case bitc::CST_CODE_CE_EXTRACTELT: { // CE_EXTRACTELT: [opty, opval, opval]
if (Record.size() < 3) return Error("Invalid CE_EXTRACTELT record");
- const VectorType *OpTy =
+ VectorType *OpTy =
dyn_cast_or_null<VectorType>(getTypeByID(Record[0]));
if (OpTy == 0) return Error("Invalid CE_EXTRACTELT record");
Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
break;
}
case bitc::CST_CODE_CE_INSERTELT: { // CE_INSERTELT: [opval, opval, opval]
- const VectorType *OpTy = dyn_cast<VectorType>(CurTy);
+ VectorType *OpTy = dyn_cast<VectorType>(CurTy);
if (Record.size() < 3 || OpTy == 0)
return Error("Invalid CE_INSERTELT record");
Constant *Op0 = ValueList.getConstantFwdRef(Record[0], OpTy);
break;
}
case bitc::CST_CODE_CE_SHUFFLEVEC: { // CE_SHUFFLEVEC: [opval, opval, opval]
- const VectorType *OpTy = dyn_cast<VectorType>(CurTy);
+ VectorType *OpTy = dyn_cast<VectorType>(CurTy);
if (Record.size() < 3 || OpTy == 0)
return Error("Invalid CE_SHUFFLEVEC record");
Constant *Op0 = ValueList.getConstantFwdRef(Record[0], OpTy);
Constant *Op1 = ValueList.getConstantFwdRef(Record[1], OpTy);
- const Type *ShufTy = VectorType::get(Type::getInt32Ty(Context),
+ Type *ShufTy = VectorType::get(Type::getInt32Ty(Context),
OpTy->getNumElements());
Constant *Op2 = ValueList.getConstantFwdRef(Record[2], ShufTy);
V = ConstantExpr::getShuffleVector(Op0, Op1, Op2);
break;
}
case bitc::CST_CODE_CE_SHUFVEC_EX: { // [opty, opval, opval, opval]
- const VectorType *RTy = dyn_cast<VectorType>(CurTy);
- const VectorType *OpTy = dyn_cast<VectorType>(getTypeByID(Record[0]));
+ VectorType *RTy = dyn_cast<VectorType>(CurTy);
+ VectorType *OpTy =
+ dyn_cast_or_null<VectorType>(getTypeByID(Record[0]));
if (Record.size() < 4 || RTy == 0 || OpTy == 0)
return Error("Invalid CE_SHUFVEC_EX record");
Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
Constant *Op1 = ValueList.getConstantFwdRef(Record[2], OpTy);
- const Type *ShufTy = VectorType::get(Type::getInt32Ty(Context),
+ Type *ShufTy = VectorType::get(Type::getInt32Ty(Context),
RTy->getNumElements());
Constant *Op2 = ValueList.getConstantFwdRef(Record[3], ShufTy);
V = ConstantExpr::getShuffleVector(Op0, Op1, Op2);
}
case bitc::CST_CODE_CE_CMP: { // CE_CMP: [opty, opval, opval, pred]
if (Record.size() < 4) return Error("Invalid CE_CMP record");
- const Type *OpTy = getTypeByID(Record[0]);
+ Type *OpTy = getTypeByID(Record[0]);
if (OpTy == 0) return Error("Invalid CE_CMP record");
Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
Constant *Op1 = ValueList.getConstantFwdRef(Record[2], OpTy);
- if (OpTy->isFloatingPoint())
+ if (OpTy->isFPOrFPVectorTy())
V = ConstantExpr::getFCmp(Record[3], Op0, Op1);
else
V = ConstantExpr::getICmp(Record[3], Op0, Op1);
AsmStr += (char)Record[2+i];
for (unsigned i = 0; i != ConstStrSize; ++i)
ConstrStr += (char)Record[3+AsmStrSize+i];
- const PointerType *PTy = cast<PointerType>(CurTy);
+ PointerType *PTy = cast<PointerType>(CurTy);
V = InlineAsm::get(cast<FunctionType>(PTy->getElementType()),
AsmStr, ConstrStr, HasSideEffects, IsAlignStack);
break;
}
case bitc::CST_CODE_BLOCKADDRESS:{
if (Record.size() < 3) return Error("Invalid CE_BLOCKADDRESS record");
- const Type *FnTy = getTypeByID(Record[0]);
+ Type *FnTy = getTypeByID(Record[0]);
if (FnTy == 0) return Error("Invalid CE_BLOCKADDRESS record");
Function *Fn =
dyn_cast_or_null<Function>(ValueList.getConstantFwdRef(Record[1],FnTy));
// Save the current stream state.
uint64_t CurBit = Stream.GetCurrentBitNo();
- DeferredFunctionInfo[Fn] = std::make_pair(CurBit, Fn->getLinkage());
-
- // Set the functions linkage to GhostLinkage so we know it is lazily
- // deserialized.
- Fn->setLinkage(GlobalValue::GhostLinkage);
+ DeferredFunctionInfo[Fn] = CurBit;
// Skip over the function block for now.
if (Stream.SkipBlock())
return false;
}
-bool BitcodeReader::ParseModule(const std::string &ModuleID) {
- // Reject multiple MODULE_BLOCK's in a single bitstream.
- if (TheModule)
- return Error("Multiple MODULE_BLOCKs in same stream");
-
+bool BitcodeReader::ParseModule() {
if (Stream.EnterSubBlock(bitc::MODULE_BLOCK_ID))
return Error("Malformed block record");
- // Otherwise, create the module.
- TheModule = new Module(ModuleID, Context);
-
SmallVector<uint64_t, 64> Record;
std::vector<std::string> SectionTable;
std::vector<std::string> GCTable;
UpgradedIntrinsics.push_back(std::make_pair(FI, NewFn));
}
+ // 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);
+
// Force deallocation of memory for these vectors to favor the client that
// want lazy deserialization.
std::vector<std::pair<GlobalVariable*, unsigned> >().swap(GlobalInits);
if (ParseAttributeBlock())
return true;
break;
- case bitc::TYPE_BLOCK_ID:
+ case bitc::TYPE_BLOCK_ID_NEW:
if (ParseTypeTable())
return true;
break;
- case bitc::TYPE_SYMTAB_BLOCK_ID:
- if (ParseTypeSymbolTable())
+ case bitc::TYPE_BLOCK_ID_OLD:
+ if (ParseOldTypeTable())
+ return true;
+ break;
+ case bitc::TYPE_SYMTAB_BLOCK_ID_OLD:
+ if (ParseOldTypeSymbolTable())
return true;
break;
case bitc::VALUE_SYMTAB_BLOCK_ID:
break;
}
// GLOBALVAR: [pointer type, isconst, initid,
- // linkage, alignment, section, visibility, threadlocal]
+ // linkage, alignment, section, visibility, threadlocal,
+ // unnamed_addr]
case bitc::MODULE_CODE_GLOBALVAR: {
if (Record.size() < 6)
return Error("Invalid MODULE_CODE_GLOBALVAR record");
- const Type *Ty = getTypeByID(Record[0]);
- if (!isa<PointerType>(Ty))
+ Type *Ty = getTypeByID(Record[0]);
+ if (!Ty) return Error("Invalid MODULE_CODE_GLOBALVAR record");
+ if (!Ty->isPointerTy())
return Error("Global not a pointer type!");
unsigned AddressSpace = cast<PointerType>(Ty)->getAddressSpace();
Ty = cast<PointerType>(Ty)->getElementType();
if (Record.size() > 7)
isThreadLocal = Record[7];
+ bool UnnamedAddr = false;
+ if (Record.size() > 8)
+ UnnamedAddr = Record[8];
+
GlobalVariable *NewGV =
new GlobalVariable(*TheModule, Ty, isConstant, Linkage, 0, "", 0,
isThreadLocal, AddressSpace);
NewGV->setSection(Section);
NewGV->setVisibility(Visibility);
NewGV->setThreadLocal(isThreadLocal);
+ NewGV->setUnnamedAddr(UnnamedAddr);
ValueList.push_back(NewGV);
break;
}
// FUNCTION: [type, callingconv, isproto, linkage, paramattr,
- // alignment, section, visibility, gc]
+ // alignment, section, visibility, gc, unnamed_addr]
case bitc::MODULE_CODE_FUNCTION: {
if (Record.size() < 8)
return Error("Invalid MODULE_CODE_FUNCTION record");
- const Type *Ty = getTypeByID(Record[0]);
- if (!isa<PointerType>(Ty))
+ Type *Ty = getTypeByID(Record[0]);
+ if (!Ty) return Error("Invalid MODULE_CODE_FUNCTION record");
+ if (!Ty->isPointerTy())
return Error("Function not a pointer type!");
- const FunctionType *FTy =
+ FunctionType *FTy =
dyn_cast<FunctionType>(cast<PointerType>(Ty)->getElementType());
if (!FTy)
return Error("Function not a pointer to function type!");
return Error("Invalid GC ID");
Func->setGC(GCTable[Record[8]-1].c_str());
}
+ bool UnnamedAddr = false;
+ if (Record.size() > 9)
+ UnnamedAddr = Record[9];
+ Func->setUnnamedAddr(UnnamedAddr);
ValueList.push_back(Func);
// If this is a function with a body, remember the prototype we are
case bitc::MODULE_CODE_ALIAS: {
if (Record.size() < 3)
return Error("Invalid MODULE_ALIAS record");
- const Type *Ty = getTypeByID(Record[0]);
- if (!isa<PointerType>(Ty))
+ Type *Ty = getTypeByID(Record[0]);
+ if (!Ty) return Error("Invalid MODULE_ALIAS record");
+ if (!Ty->isPointerTy())
return Error("Function not a pointer type!");
GlobalAlias *NewGA = new GlobalAlias(Ty, GetDecodedLinkage(Record[2]),
return Error("Premature end of bitstream");
}
-bool BitcodeReader::ParseBitcode() {
+bool BitcodeReader::ParseBitcodeInto(Module *M) {
TheModule = 0;
- if (Buffer->getBufferSize() & 3)
- return Error("Bitcode stream should be a multiple of 4 bytes in length");
-
unsigned char *BufPtr = (unsigned char *)Buffer->getBufferStart();
unsigned char *BufEnd = BufPtr+Buffer->getBufferSize();
+ if (Buffer->getBufferSize() & 3) {
+ if (!isRawBitcode(BufPtr, BufEnd) && !isBitcodeWrapper(BufPtr, BufEnd))
+ return Error("Invalid bitcode signature");
+ else
+ return Error("Bitcode stream should be a multiple of 4 bytes in length");
+ }
+
// If we have a wrapper header, parse it and ignore the non-bc file contents.
// The magic number is 0x0B17C0DE stored in little endian.
if (isBitcodeWrapper(BufPtr, BufEnd))
while (!Stream.AtEndOfStream()) {
unsigned Code = Stream.ReadCode();
- if (Code != bitc::ENTER_SUBBLOCK)
+ if (Code != bitc::ENTER_SUBBLOCK) {
+
+ // The ranlib in xcode 4 will align archive members by appending newlines
+ // to the end of them. If this file size is a multiple of 4 but not 8, we
+ // have to read and ignore these final 4 bytes :-(
+ if (Stream.GetAbbrevIDWidth() == 2 && Code == 2 &&
+ Stream.Read(6) == 2 && Stream.Read(24) == 0xa0a0a &&
+ Stream.AtEndOfStream())
+ return false;
+
return Error("Invalid record at top-level");
+ }
unsigned BlockID = Stream.ReadSubBlockID();
return Error("Malformed BlockInfoBlock");
break;
case bitc::MODULE_BLOCK_ID:
- if (ParseModule(Buffer->getBufferIdentifier()))
+ // Reject multiple MODULE_BLOCK's in a single bitstream.
+ if (TheModule)
+ return Error("Multiple MODULE_BLOCKs in same stream");
+ TheModule = M;
+ if (ParseModule())
+ return true;
+ break;
+ default:
+ if (Stream.SkipBlock())
+ return Error("Malformed block record");
+ break;
+ }
+ }
+
+ return false;
+}
+
+bool BitcodeReader::ParseModuleTriple(std::string &Triple) {
+ if (Stream.EnterSubBlock(bitc::MODULE_BLOCK_ID))
+ return Error("Malformed block record");
+
+ SmallVector<uint64_t, 64> Record;
+
+ // Read all the records for this module.
+ while (!Stream.AtEndOfStream()) {
+ unsigned Code = Stream.ReadCode();
+ if (Code == bitc::END_BLOCK) {
+ if (Stream.ReadBlockEnd())
+ return Error("Error at end of module block");
+
+ return false;
+ }
+
+ if (Code == bitc::ENTER_SUBBLOCK) {
+ switch (Stream.ReadSubBlockID()) {
+ default: // Skip unknown content.
+ if (Stream.SkipBlock())
+ return Error("Malformed block record");
+ break;
+ }
+ continue;
+ }
+
+ if (Code == bitc::DEFINE_ABBREV) {
+ Stream.ReadAbbrevRecord();
+ continue;
+ }
+
+ // Read a record.
+ switch (Stream.ReadRecord(Code, Record)) {
+ default: break; // Default behavior, ignore unknown content.
+ case bitc::MODULE_CODE_VERSION: // VERSION: [version#]
+ if (Record.size() < 1)
+ return Error("Malformed MODULE_CODE_VERSION");
+ // Only version #0 is supported so far.
+ if (Record[0] != 0)
+ return Error("Unknown bitstream version!");
+ break;
+ case bitc::MODULE_CODE_TRIPLE: { // TRIPLE: [strchr x N]
+ std::string S;
+ if (ConvertToString(Record, 0, S))
+ return Error("Invalid MODULE_CODE_TRIPLE record");
+ Triple = S;
+ break;
+ }
+ }
+ Record.clear();
+ }
+
+ return Error("Premature end of bitstream");
+}
+
+bool BitcodeReader::ParseTriple(std::string &Triple) {
+ if (Buffer->getBufferSize() & 3)
+ return Error("Bitcode stream should be a multiple of 4 bytes in length");
+
+ unsigned char *BufPtr = (unsigned char *)Buffer->getBufferStart();
+ unsigned char *BufEnd = BufPtr+Buffer->getBufferSize();
+
+ // If we have a wrapper header, parse it and ignore the non-bc file contents.
+ // The magic number is 0x0B17C0DE stored in little endian.
+ if (isBitcodeWrapper(BufPtr, BufEnd))
+ if (SkipBitcodeWrapperHeader(BufPtr, BufEnd))
+ return Error("Invalid bitcode wrapper header");
+
+ StreamFile.init(BufPtr, BufEnd);
+ Stream.init(StreamFile);
+
+ // Sniff for the signature.
+ if (Stream.Read(8) != 'B' ||
+ Stream.Read(8) != 'C' ||
+ Stream.Read(4) != 0x0 ||
+ Stream.Read(4) != 0xC ||
+ Stream.Read(4) != 0xE ||
+ Stream.Read(4) != 0xD)
+ return Error("Invalid bitcode signature");
+
+ // We expect a number of well-defined blocks, though we don't necessarily
+ // need to understand them all.
+ while (!Stream.AtEndOfStream()) {
+ unsigned Code = Stream.ReadCode();
+
+ if (Code != bitc::ENTER_SUBBLOCK)
+ return Error("Invalid record at top-level");
+
+ unsigned BlockID = Stream.ReadSubBlockID();
+
+ // We only know the MODULE subblock ID.
+ switch (BlockID) {
+ case bitc::MODULE_BLOCK_ID:
+ if (ParseModuleTriple(Triple))
return true;
break;
default:
if (Stream.EnterSubBlock(bitc::METADATA_ATTACHMENT_ID))
return Error("Malformed block record");
- MetadataContext &TheMetadata = Context.getMetadata();
SmallVector<uint64_t, 64> Record;
while(1) {
unsigned Code = Stream.ReadCode();
Instruction *Inst = InstructionList[Record[0]];
for (unsigned i = 1; i != RecordLength; i = i+2) {
unsigned Kind = Record[i];
+ DenseMap<unsigned, unsigned>::iterator I =
+ MDKindMap.find(Kind);
+ if (I == MDKindMap.end())
+ return Error("Invalid metadata kind ID");
Value *Node = MDValueList.getValueFwdRef(Record[i+1]);
- TheMetadata.addMD(Kind, cast<MDNode>(Node), Inst);
+ Inst->setMetadata(I->second, cast<MDNode>(Node));
}
break;
}
if (Stream.EnterSubBlock(bitc::FUNCTION_BLOCK_ID))
return Error("Malformed block record");
+ InstructionList.clear();
unsigned ModuleValueListSize = ValueList.size();
+ unsigned ModuleMDValueListSize = MDValueList.size();
// Add all the function arguments to the value table.
for(Function::arg_iterator I = F->arg_begin(), E = F->arg_end(); I != E; ++I)
BasicBlock *CurBB = 0;
unsigned CurBBNo = 0;
+ DebugLoc LastLoc;
+
// Read all the records.
SmallVector<uint64_t, 64> Record;
while (1) {
case bitc::METADATA_ATTACHMENT_ID:
if (ParseMetadataAttachment()) return true;
break;
+ case bitc::METADATA_BLOCK_ID:
+ if (ParseMetadata()) return true;
+ break;
}
continue;
}
FunctionBBs[i] = BasicBlock::Create(Context, "", F);
CurBB = FunctionBBs[0];
continue;
+
+ 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;
+
+ // 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) return Error("Invalid DEBUG_LOC_AGAIN record");
+ I->setDebugLoc(LastLoc);
+ I = 0;
+ continue;
+
+ case bitc::FUNC_CODE_DEBUG_LOC: { // DEBUG_LOC: [line, col, scope, ia]
+ I = 0; // 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)
+ return Error("Invalid FUNC_CODE_DEBUG_LOC record");
+
+ unsigned Line = Record[0], Col = Record[1];
+ unsigned ScopeID = Record[2], IAID = Record[3];
+
+ MDNode *Scope = 0, *IA = 0;
+ 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;
+ continue;
+ }
case bitc::FUNC_CODE_INST_BINOP: { // BINOP: [opval, ty, opval, opcode]
unsigned OpNum = 0;
if (OpNum < Record.size()) {
if (Opc == Instruction::Add ||
Opc == Instruction::Sub ||
- Opc == Instruction::Mul) {
- if (Record[3] & (1 << bitc::OBO_NO_SIGNED_WRAP))
+ Opc == Instruction::Mul ||
+ Opc == Instruction::Shl) {
+ if (Record[OpNum] & (1 << bitc::OBO_NO_SIGNED_WRAP))
cast<BinaryOperator>(I)->setHasNoSignedWrap(true);
- if (Record[3] & (1 << bitc::OBO_NO_UNSIGNED_WRAP))
+ if (Record[OpNum] & (1 << bitc::OBO_NO_UNSIGNED_WRAP))
cast<BinaryOperator>(I)->setHasNoUnsignedWrap(true);
- } else if (Opc == Instruction::SDiv) {
- if (Record[3] & (1 << bitc::SDIV_EXACT))
+ } else if (Opc == Instruction::SDiv ||
+ Opc == Instruction::UDiv ||
+ Opc == Instruction::LShr ||
+ Opc == Instruction::AShr) {
+ if (Record[OpNum] & (1 << bitc::PEO_EXACT))
cast<BinaryOperator>(I)->setIsExact(true);
}
}
OpNum+2 != Record.size())
return Error("Invalid CAST record");
- const Type *ResTy = getTypeByID(Record[OpNum]);
+ Type *ResTy = getTypeByID(Record[OpNum]);
int Opc = GetDecodedCastOpcode(Record[OpNum+1]);
if (Opc == -1 || ResTy == 0)
return Error("Invalid CAST record");
GEPIdx.push_back(Op);
}
- I = GetElementPtrInst::Create(BasePtr, GEPIdx.begin(), GEPIdx.end());
+ I = GetElementPtrInst::Create(BasePtr, GEPIdx);
InstructionList.push_back(I);
if (BitCode == bitc::FUNC_CODE_INST_INBOUNDS_GEP)
cast<GetElementPtrInst>(I)->setIsInBounds(true);
EXTRACTVALIdx.push_back((unsigned)Index);
}
- I = ExtractValueInst::Create(Agg,
- EXTRACTVALIdx.begin(), EXTRACTVALIdx.end());
+ I = ExtractValueInst::Create(Agg, EXTRACTVALIdx);
InstructionList.push_back(I);
break;
}
INSERTVALIdx.push_back((unsigned)Index);
}
- I = InsertValueInst::Create(Agg, Val,
- INSERTVALIdx.begin(), INSERTVALIdx.end());
+ I = InsertValueInst::Create(Agg, Val, INSERTVALIdx);
InstructionList.push_back(I);
break;
}
return Error("Invalid SELECT record");
// select condition can be either i1 or [N x i1]
- if (const VectorType* vector_type =
- dyn_cast<const VectorType>(Cond->getType())) {
+ if (VectorType* vector_type =
+ dyn_cast<VectorType>(Cond->getType())) {
// expect <n x i1>
if (vector_type->getElementType() != Type::getInt1Ty(Context))
return Error("Invalid SELECT condition type");
OpNum+1 != Record.size())
return Error("Invalid CMP record");
- if (LHS->getType()->isFPOrFPVector())
+ if (LHS->getType()->isFPOrFPVectorTy())
I = new FCmpInst((FCmpInst::Predicate)Record[OpNum], LHS, RHS);
else
I = new ICmpInst((ICmpInst::Predicate)Record[OpNum], LHS, RHS);
break;
}
- case bitc::FUNC_CODE_INST_GETRESULT: { // GETRESULT: [ty, val, n]
- if (Record.size() != 2)
- return Error("Invalid GETRESULT record");
- unsigned OpNum = 0;
- Value *Op;
- getValueTypePair(Record, OpNum, NextValueNo, Op);
- unsigned Index = Record[1];
- I = ExtractValueInst::Create(Op, Index);
- InstructionList.push_back(I);
- break;
- }
-
case bitc::FUNC_CODE_INST_RET: // RET: [opty,opval<optional>]
{
unsigned Size = Record.size();
}
unsigned OpNum = 0;
- SmallVector<Value *,4> Vs;
- do {
- Value *Op = NULL;
- if (getValueTypePair(Record, OpNum, NextValueNo, Op))
- return Error("Invalid RET record");
- Vs.push_back(Op);
- } while(OpNum != Record.size());
-
- const Type *ReturnType = F->getReturnType();
- if (Vs.size() > 1 ||
- (isa<StructType>(ReturnType) &&
- (Vs.empty() || Vs[0]->getType() != ReturnType))) {
- Value *RV = UndefValue::get(ReturnType);
- for (unsigned i = 0, e = Vs.size(); i != e; ++i) {
- I = InsertValueInst::Create(RV, Vs[i], i, "mrv");
- InstructionList.push_back(I);
- CurBB->getInstList().push_back(I);
- ValueList.AssignValue(I, NextValueNo++);
- RV = I;
- }
- I = ReturnInst::Create(Context, RV);
- InstructionList.push_back(I);
- break;
- }
+ Value *Op = NULL;
+ if (getValueTypePair(Record, OpNum, NextValueNo, Op))
+ return Error("Invalid RET record");
+ if (OpNum != Record.size())
+ return Error("Invalid RET record");
- I = ReturnInst::Create(Context, Vs[0]);
+ I = ReturnInst::Create(Context, Op);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_SWITCH: { // SWITCH: [opty, op0, op1, ...]
if (Record.size() < 3 || (Record.size() & 1) == 0)
return Error("Invalid SWITCH record");
- const Type *OpTy = getTypeByID(Record[0]);
+ Type *OpTy = getTypeByID(Record[0]);
Value *Cond = getFnValueByID(Record[1], OpTy);
BasicBlock *Default = getBasicBlock(Record[2]);
if (OpTy == 0 || Cond == 0 || Default == 0)
case bitc::FUNC_CODE_INST_INDIRECTBR: { // INDIRECTBR: [opty, op0, op1, ...]
if (Record.size() < 2)
return Error("Invalid INDIRECTBR record");
- const Type *OpTy = getTypeByID(Record[0]);
+ Type *OpTy = getTypeByID(Record[0]);
Value *Address = getFnValueByID(Record[1], OpTy);
if (OpTy == 0 || Address == 0)
return Error("Invalid INDIRECTBR record");
if (getValueTypePair(Record, OpNum, NextValueNo, Callee))
return Error("Invalid INVOKE record");
- const PointerType *CalleeTy = dyn_cast<PointerType>(Callee->getType());
- const FunctionType *FTy = !CalleeTy ? 0 :
+ PointerType *CalleeTy = dyn_cast<PointerType>(Callee->getType());
+ FunctionType *FTy = !CalleeTy ? 0 :
dyn_cast<FunctionType>(CalleeTy->getElementType());
// Check that the right number of fixed parameters are here.
}
}
- I = InvokeInst::Create(Callee, NormalBB, UnwindBB,
- Ops.begin(), Ops.end());
+ I = InvokeInst::Create(Callee, NormalBB, UnwindBB, Ops);
InstructionList.push_back(I);
cast<InvokeInst>(I)->setCallingConv(
static_cast<CallingConv::ID>(CCInfo));
cast<InvokeInst>(I)->setAttributes(PAL);
break;
}
+ case bitc::FUNC_CODE_INST_RESUME: { // RESUME: [opval]
+ unsigned Idx = 0;
+ Value *Val = 0;
+ if (getValueTypePair(Record, Idx, NextValueNo, Val))
+ return Error("Invalid RESUME record");
+ I = ResumeInst::Create(Val);
+ InstructionList.push_back(I);
+ break;
+ }
case bitc::FUNC_CODE_INST_UNWIND: // UNWIND
I = new UnwindInst(Context);
InstructionList.push_back(I);
case bitc::FUNC_CODE_INST_PHI: { // PHI: [ty, val0,bb0, ...]
if (Record.size() < 1 || ((Record.size()-1)&1))
return Error("Invalid PHI record");
- const Type *Ty = getTypeByID(Record[0]);
+ Type *Ty = getTypeByID(Record[0]);
if (!Ty) return Error("Invalid PHI record");
- PHINode *PN = PHINode::Create(Ty);
+ PHINode *PN = PHINode::Create(Ty, (Record.size()-1)/2);
InstructionList.push_back(PN);
- PN->reserveOperandSpace((Record.size()-1)/2);
for (unsigned i = 0, e = Record.size()-1; i != e; i += 2) {
Value *V = getFnValueByID(Record[1+i], Ty);
break;
}
- case bitc::FUNC_CODE_INST_MALLOC: { // MALLOC: [instty, op, align]
- // Autoupgrade malloc instruction to malloc call.
- // FIXME: Remove in LLVM 3.0.
- if (Record.size() < 3)
- return Error("Invalid MALLOC record");
- const PointerType *Ty =
- dyn_cast_or_null<PointerType>(getTypeByID(Record[0]));
- Value *Size = getFnValueByID(Record[1], Type::getInt32Ty(Context));
- if (!Ty || !Size) return Error("Invalid MALLOC record");
- if (!CurBB) return Error("Invalid malloc instruction with no BB");
- const Type *Int32Ty = IntegerType::getInt32Ty(CurBB->getContext());
- I = CallInst::CreateMalloc(CurBB, Int32Ty, Ty->getElementType(),
- Size, NULL);
- InstructionList.push_back(I);
- break;
- }
- case bitc::FUNC_CODE_INST_FREE: { // FREE: [op, opty]
- unsigned OpNum = 0;
- Value *Op;
- if (getValueTypePair(Record, OpNum, NextValueNo, Op) ||
- OpNum != Record.size())
- return Error("Invalid FREE record");
- if (!CurBB) return Error("Invalid free instruction with no BB");
- I = CallInst::CreateFree(Op, CurBB);
+ case bitc::FUNC_CODE_INST_LANDINGPAD: {
+ // LANDINGPAD: [ty, val, val, num, (id0,val0 ...)?]
+ unsigned Idx = 0;
+ if (Record.size() < 4)
+ return Error("Invalid LANDINGPAD record");
+ Type *Ty = getTypeByID(Record[Idx++]);
+ if (!Ty) return Error("Invalid LANDINGPAD record");
+ Value *PersFn = 0;
+ if (getValueTypePair(Record, Idx, NextValueNo, PersFn))
+ return Error("Invalid LANDINGPAD record");
+
+ bool IsCleanup = !!Record[Idx++];
+ unsigned NumClauses = Record[Idx++];
+ LandingPadInst *LP = LandingPadInst::Create(Ty, PersFn, NumClauses);
+ LP->setCleanup(IsCleanup);
+ for (unsigned J = 0; J != NumClauses; ++J) {
+ LandingPadInst::ClauseType CT =
+ LandingPadInst::ClauseType(Record[Idx++]); (void)CT;
+ Value *Val;
+
+ if (getValueTypePair(Record, Idx, NextValueNo, Val)) {
+ delete LP;
+ return Error("Invalid LANDINGPAD record");
+ }
+
+ assert((CT != LandingPadInst::Catch ||
+ !isa<ArrayType>(Val->getType())) &&
+ "Catch clause has a invalid type!");
+ assert((CT != LandingPadInst::Filter ||
+ isa<ArrayType>(Val->getType())) &&
+ "Filter clause has invalid type!");
+ LP->addClause(Val);
+ }
+
+ I = LP;
InstructionList.push_back(I);
break;
}
- case bitc::FUNC_CODE_INST_ALLOCA: { // ALLOCA: [instty, op, align]
- if (Record.size() < 3)
+
+ case bitc::FUNC_CODE_INST_ALLOCA: { // ALLOCA: [instty, opty, op, align]
+ if (Record.size() != 4)
return Error("Invalid ALLOCA record");
- const PointerType *Ty =
+ PointerType *Ty =
dyn_cast_or_null<PointerType>(getTypeByID(Record[0]));
- Value *Size = getFnValueByID(Record[1], Type::getInt32Ty(Context));
- unsigned Align = Record[2];
+ Type *OpTy = getTypeByID(Record[1]);
+ Value *Size = getFnValueByID(Record[2], OpTy);
+ unsigned Align = Record[3];
if (!Ty || !Size) return Error("Invalid ALLOCA record");
I = new AllocaInst(Ty->getElementType(), Size, (1 << Align) >> 1);
InstructionList.push_back(I);
InstructionList.push_back(I);
break;
}
- case bitc::FUNC_CODE_INST_STORE2: { // STORE2:[ptrty, ptr, val, align, vol]
+ case bitc::FUNC_CODE_INST_LOADATOMIC: {
+ // LOADATOMIC: [opty, op, align, vol, ordering, synchscope]
+ unsigned OpNum = 0;
+ Value *Op;
+ if (getValueTypePair(Record, OpNum, NextValueNo, Op) ||
+ OpNum+4 != Record.size())
+ return Error("Invalid LOADATOMIC record");
+
+
+ AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+2]);
+ if (Ordering == NotAtomic || Ordering == Release ||
+ Ordering == AcquireRelease)
+ return Error("Invalid LOADATOMIC record");
+ if (Ordering != NotAtomic && Record[OpNum] == 0)
+ return Error("Invalid LOADATOMIC record");
+ SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+3]);
+
+ I = new LoadInst(Op, "", Record[OpNum+1], (1 << Record[OpNum]) >> 1,
+ Ordering, SynchScope);
+ InstructionList.push_back(I);
+ break;
+ }
+ case bitc::FUNC_CODE_INST_STORE: { // STORE2:[ptrty, ptr, val, align, vol]
unsigned OpNum = 0;
Value *Val, *Ptr;
if (getValueTypePair(Record, OpNum, NextValueNo, Ptr) ||
InstructionList.push_back(I);
break;
}
- case bitc::FUNC_CODE_INST_STORE: { // STORE:[val, valty, ptr, align, vol]
- // FIXME: Legacy form of store instruction. Should be removed in LLVM 3.0.
+ case bitc::FUNC_CODE_INST_STOREATOMIC: {
+ // STOREATOMIC: [ptrty, ptr, val, align, vol, ordering, synchscope]
unsigned OpNum = 0;
Value *Val, *Ptr;
- if (getValueTypePair(Record, OpNum, NextValueNo, Val) ||
+ if (getValueTypePair(Record, OpNum, NextValueNo, Ptr) ||
getValue(Record, OpNum,
- PointerType::getUnqual(Val->getType()), Ptr)||
- OpNum+2 != Record.size())
- return Error("Invalid STORE record");
-
- I = new StoreInst(Val, Ptr, Record[OpNum+1], (1 << Record[OpNum]) >> 1);
+ cast<PointerType>(Ptr->getType())->getElementType(), Val) ||
+ OpNum+4 != Record.size())
+ return Error("Invalid STOREATOMIC record");
+
+ AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+2]);
+ if (Ordering == NotAtomic || Ordering == Acquire ||
+ Ordering == AcquireRelease)
+ return Error("Invalid STOREATOMIC record");
+ SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+3]);
+ if (Ordering != NotAtomic && Record[OpNum] == 0)
+ return Error("Invalid STOREATOMIC record");
+
+ I = new StoreInst(Val, Ptr, Record[OpNum+1], (1 << Record[OpNum]) >> 1,
+ Ordering, SynchScope);
+ InstructionList.push_back(I);
+ break;
+ }
+ case bitc::FUNC_CODE_INST_CMPXCHG: {
+ // CMPXCHG:[ptrty, ptr, cmp, new, vol, ordering, synchscope]
+ unsigned OpNum = 0;
+ Value *Ptr, *Cmp, *New;
+ if (getValueTypePair(Record, OpNum, NextValueNo, Ptr) ||
+ getValue(Record, OpNum,
+ cast<PointerType>(Ptr->getType())->getElementType(), Cmp) ||
+ getValue(Record, OpNum,
+ cast<PointerType>(Ptr->getType())->getElementType(), New) ||
+ OpNum+3 != Record.size())
+ return Error("Invalid CMPXCHG record");
+ AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+1]);
+ if (Ordering == NotAtomic || Ordering == Unordered)
+ return Error("Invalid CMPXCHG record");
+ SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+2]);
+ I = new AtomicCmpXchgInst(Ptr, Cmp, New, Ordering, SynchScope);
+ cast<AtomicCmpXchgInst>(I)->setVolatile(Record[OpNum]);
+ InstructionList.push_back(I);
+ break;
+ }
+ case bitc::FUNC_CODE_INST_ATOMICRMW: {
+ // ATOMICRMW:[ptrty, ptr, val, op, vol, ordering, synchscope]
+ unsigned OpNum = 0;
+ Value *Ptr, *Val;
+ if (getValueTypePair(Record, OpNum, NextValueNo, Ptr) ||
+ getValue(Record, OpNum,
+ cast<PointerType>(Ptr->getType())->getElementType(), Val) ||
+ OpNum+4 != Record.size())
+ return Error("Invalid ATOMICRMW record");
+ AtomicRMWInst::BinOp Operation = GetDecodedRMWOperation(Record[OpNum]);
+ if (Operation < AtomicRMWInst::FIRST_BINOP ||
+ Operation > AtomicRMWInst::LAST_BINOP)
+ return Error("Invalid ATOMICRMW record");
+ AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+2]);
+ if (Ordering == NotAtomic || Ordering == Unordered)
+ return Error("Invalid ATOMICRMW record");
+ SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+3]);
+ I = new AtomicRMWInst(Operation, Ptr, Val, Ordering, SynchScope);
+ cast<AtomicRMWInst>(I)->setVolatile(Record[OpNum+1]);
+ InstructionList.push_back(I);
+ break;
+ }
+ case bitc::FUNC_CODE_INST_FENCE: { // FENCE:[ordering, synchscope]
+ if (2 != Record.size())
+ return Error("Invalid FENCE record");
+ AtomicOrdering Ordering = GetDecodedOrdering(Record[0]);
+ if (Ordering == NotAtomic || Ordering == Unordered ||
+ Ordering == Monotonic)
+ return Error("Invalid FENCE record");
+ SynchronizationScope SynchScope = GetDecodedSynchScope(Record[1]);
+ I = new FenceInst(Context, Ordering, SynchScope);
InstructionList.push_back(I);
break;
}
if (getValueTypePair(Record, OpNum, NextValueNo, Callee))
return Error("Invalid CALL record");
- const PointerType *OpTy = dyn_cast<PointerType>(Callee->getType());
- const FunctionType *FTy = 0;
+ PointerType *OpTy = dyn_cast<PointerType>(Callee->getType());
+ FunctionType *FTy = 0;
if (OpTy) FTy = dyn_cast<FunctionType>(OpTy->getElementType());
if (!FTy || Record.size() < FTy->getNumParams()+OpNum)
return Error("Invalid CALL record");
SmallVector<Value*, 16> Args;
// Read the fixed params.
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i, ++OpNum) {
- if (FTy->getParamType(i)->getTypeID()==Type::LabelTyID)
+ if (FTy->getParamType(i)->isLabelTy())
Args.push_back(getBasicBlock(Record[OpNum]));
else
Args.push_back(getFnValueByID(Record[OpNum], FTy->getParamType(i)));
}
}
- I = CallInst::Create(Callee, Args.begin(), Args.end());
+ I = CallInst::Create(Callee, Args);
InstructionList.push_back(I);
cast<CallInst>(I)->setCallingConv(
static_cast<CallingConv::ID>(CCInfo>>1));
case bitc::FUNC_CODE_INST_VAARG: { // VAARG: [valistty, valist, instty]
if (Record.size() < 3)
return Error("Invalid VAARG record");
- const Type *OpTy = getTypeByID(Record[0]);
+ Type *OpTy = getTypeByID(Record[0]);
Value *Op = getFnValueByID(Record[1], OpTy);
- const Type *ResTy = getTypeByID(Record[2]);
+ Type *ResTy = getTypeByID(Record[2]);
if (!OpTy || !Op || !ResTy)
return Error("Invalid VAARG record");
I = new VAArgInst(Op, ResTy);
}
// Non-void values get registered in the value table for future use.
- if (I && I->getType() != Type::getVoidTy(Context))
+ if (I && !I->getType()->isVoidTy())
ValueList.AssignValue(I, NextValueNo++);
}
if (A->getParent() == 0) {
// 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.back())) && A->getParent() == 0) {
+ if ((A = dyn_cast<Argument>(ValueList[i])) && A->getParent() == 0) {
A->replaceAllUsesWith(UndefValue::get(A->getType()));
delete A;
}
}
}
+ // FIXME: Check for unresolved forward-declared metadata references
+ // and clean up leaks.
+
// See if anything took the address of blocks in this function. If so,
// resolve them now.
- /// BlockAddrFwdRefs - These are blockaddr references to basic blocks. These
- /// are resolved lazily when functions are loaded.
DenseMap<Function*, std::vector<BlockAddrRefTy> >::iterator BAFRI =
BlockAddrFwdRefs.find(F);
if (BAFRI != BlockAddrFwdRefs.end()) {
// Trim the value list down to the size it was before we parsed this function.
ValueList.shrinkTo(ModuleValueListSize);
+ MDValueList.shrinkTo(ModuleMDValueListSize);
std::vector<BasicBlock*>().swap(FunctionBBs);
-
return false;
}
//===----------------------------------------------------------------------===//
-// ModuleProvider implementation
+// GVMaterializer implementation
//===----------------------------------------------------------------------===//
-bool BitcodeReader::materializeFunction(Function *F, std::string *ErrInfo) {
- // If it already is material, ignore the request.
- if (!F->hasNotBeenReadFromBitcode()) return false;
+bool BitcodeReader::isMaterializable(const GlobalValue *GV) const {
+ if (const Function *F = dyn_cast<Function>(GV)) {
+ return F->isDeclaration() &&
+ DeferredFunctionInfo.count(const_cast<Function*>(F));
+ }
+ return false;
+}
- DenseMap<Function*, std::pair<uint64_t, unsigned> >::iterator DFII =
- DeferredFunctionInfo.find(F);
+bool BitcodeReader::Materialize(GlobalValue *GV, std::string *ErrInfo) {
+ Function *F = dyn_cast<Function>(GV);
+ // If it's not a function or is already material, ignore the request.
+ if (!F || !F->isMaterializable()) return false;
+
+ DenseMap<Function*, uint64_t>::iterator DFII = DeferredFunctionInfo.find(F);
assert(DFII != DeferredFunctionInfo.end() && "Deferred function not found!");
- // Move the bit stream to the saved position of the deferred function body and
- // restore the real linkage type for the function.
- Stream.JumpToBit(DFII->second.first);
- F->setLinkage((GlobalValue::LinkageTypes)DFII->second.second);
+ // Move the bit stream to the saved position of the deferred function body.
+ Stream.JumpToBit(DFII->second);
if (ParseFunctionBody(F)) {
if (ErrInfo) *ErrInfo = ErrorString;
return false;
}
-void BitcodeReader::dematerializeFunction(Function *F) {
- // If this function isn't materialized, or if it is a proto, this is a noop.
- if (F->hasNotBeenReadFromBitcode() || F->isDeclaration())
+bool BitcodeReader::isDematerializable(const GlobalValue *GV) const {
+ const Function *F = dyn_cast<Function>(GV);
+ if (!F || F->isDeclaration())
+ return false;
+ return DeferredFunctionInfo.count(const_cast<Function*>(F));
+}
+
+void BitcodeReader::Dematerialize(GlobalValue *GV) {
+ Function *F = dyn_cast<Function>(GV);
+ // If this function isn't dematerializable, this is a noop.
+ if (!F || !isDematerializable(F))
return;
assert(DeferredFunctionInfo.count(F) && "No info to read function later?");
// Just forget the function body, we can remat it later.
F->deleteBody();
- F->setLinkage(GlobalValue::GhostLinkage);
}
-Module *BitcodeReader::materializeModule(std::string *ErrInfo) {
+bool BitcodeReader::MaterializeModule(Module *M, std::string *ErrInfo) {
+ assert(M == TheModule &&
+ "Can only Materialize the Module this BitcodeReader is attached to.");
// Iterate over the module, deserializing any functions that are still on
// disk.
for (Module::iterator F = TheModule->begin(), E = TheModule->end();
F != E; ++F)
- if (F->hasNotBeenReadFromBitcode() &&
- materializeFunction(F, ErrInfo))
- return 0;
+ if (F->isMaterializable() &&
+ Materialize(F, ErrInfo))
+ return true;
// Upgrade any intrinsic calls that slipped through (should not happen!) and
// delete the old functions to clean up. We can't do this unless the entire
// Check debug info intrinsics.
CheckDebugInfoIntrinsics(TheModule);
- return TheModule;
-}
-
-
-/// This method is provided by the parent ModuleProvde class and overriden
-/// here. It simply releases the module from its provided and frees up our
-/// state.
-/// @brief Release our hold on the generated module
-Module *BitcodeReader::releaseModule(std::string *ErrInfo) {
- // Since we're losing control of this Module, we must hand it back complete
- Module *M = ModuleProvider::releaseModule(ErrInfo);
- FreeState();
- return M;
+ return false;
}
// External interface
//===----------------------------------------------------------------------===//
-/// getBitcodeModuleProvider - lazy function-at-a-time loading from a file.
+/// getLazyBitcodeModule - lazy function-at-a-time loading from a file.
///
-ModuleProvider *llvm::getBitcodeModuleProvider(MemoryBuffer *Buffer,
- LLVMContext& Context,
- std::string *ErrMsg) {
+Module *llvm::getLazyBitcodeModule(MemoryBuffer *Buffer,
+ LLVMContext& Context,
+ std::string *ErrMsg) {
+ Module *M = new Module(Buffer->getBufferIdentifier(), Context);
BitcodeReader *R = new BitcodeReader(Buffer, Context);
- if (R->ParseBitcode()) {
+ M->setMaterializer(R);
+ if (R->ParseBitcodeInto(M)) {
if (ErrMsg)
*ErrMsg = R->getErrorString();
- // Don't let the BitcodeReader dtor delete 'Buffer'.
- R->releaseMemoryBuffer();
- delete R;
+ delete M; // Also deletes R.
return 0;
}
- return R;
+ // Have the BitcodeReader dtor delete 'Buffer'.
+ R->setBufferOwned(true);
+ 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){
- BitcodeReader *R;
- R = static_cast<BitcodeReader*>(getBitcodeModuleProvider(Buffer, Context,
- ErrMsg));
- if (!R) return 0;
-
- // Read in the entire module.
- Module *M = R->materializeModule(ErrMsg);
+ Module *M = getLazyBitcodeModule(Buffer, Context, ErrMsg);
+ if (!M) return 0;
// Don't let the BitcodeReader dtor delete 'Buffer', regardless of whether
// there was an error.
- R->releaseMemoryBuffer();
+ static_cast<BitcodeReader*>(M->getMaterializer())->setBufferOwned(false);
- // If there was no error, tell ModuleProvider not to delete it when its dtor
- // is run.
- if (M)
- M = R->releaseModule(ErrMsg);
+ // Read in the entire module, and destroy the BitcodeReader.
+ if (M->MaterializeAllPermanently(ErrMsg)) {
+ delete M;
+ return 0;
+ }
- delete R;
return M;
}
+
+std::string llvm::getBitcodeTargetTriple(MemoryBuffer *Buffer,
+ LLVMContext& Context,
+ std::string *ErrMsg) {
+ BitcodeReader *R = new BitcodeReader(Buffer, Context);
+ // Don't let the BitcodeReader dtor delete 'Buffer'.
+ R->setBufferOwned(false);
+
+ std::string Triple("");
+ if (R->ParseTriple(Triple))
+ if (ErrMsg)
+ *ErrMsg = R->getErrorString();
+
+ delete R;
+ return Triple;
+}