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Diffstat (limited to 'lib/Bitcode/Reader')
-rw-r--r--lib/Bitcode/Reader/BitReader.cpp10
-rw-r--r--lib/Bitcode/Reader/BitcodeReader.cpp89
-rw-r--r--lib/Bitcode/Reader/BitcodeReader.h50
3 files changed, 76 insertions, 73 deletions
diff --git a/lib/Bitcode/Reader/BitReader.cpp b/lib/Bitcode/Reader/BitReader.cpp
index 15844c0041..448504c89e 100644
--- a/lib/Bitcode/Reader/BitReader.cpp
+++ b/lib/Bitcode/Reader/BitReader.cpp
@@ -30,7 +30,7 @@ LLVMBool LLVMParseBitcodeInContext(LLVMContextRef ContextRef,
LLVMModuleRef *OutModule,
char **OutMessage) {
std::string Message;
-
+
*OutModule = wrap(ParseBitcodeFile(unwrap(MemBuf), *unwrap(ContextRef),
&Message));
if (!*OutModule) {
@@ -38,19 +38,19 @@ LLVMBool LLVMParseBitcodeInContext(LLVMContextRef ContextRef,
*OutMessage = strdup(Message.c_str());
return 1;
}
-
+
return 0;
}
/* Reads a module from the specified path, returning via the OutModule parameter
a module provider which performs lazy deserialization. Returns 0 on success.
- Optionally returns a human-readable error message via OutMessage. */
+ Optionally returns a human-readable error message via OutMessage. */
LLVMBool LLVMGetBitcodeModuleInContext(LLVMContextRef ContextRef,
LLVMMemoryBufferRef MemBuf,
LLVMModuleRef *OutM,
char **OutMessage) {
std::string Message;
-
+
*OutM = wrap(getLazyBitcodeModule(unwrap(MemBuf), *unwrap(ContextRef),
&Message));
if (!*OutM) {
@@ -58,7 +58,7 @@ LLVMBool LLVMGetBitcodeModuleInContext(LLVMContextRef ContextRef,
*OutMessage = strdup(Message.c_str());
return 1;
}
-
+
return 0;
}
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 96b3925ed7..9b28c9d60a 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -487,7 +487,7 @@ bool BitcodeReader::ParseAttributeBlock() {
Attributes::get(Context, B)));
}
- MAttributes.push_back(AttrListPtr::get(Attrs));
+ MAttributes.push_back(AttrListPtr::get(Context, Attrs));
Attrs.clear();
break;
}
@@ -607,7 +607,7 @@ bool BitcodeReader::ParseTypeTableBody() {
else
break;
}
-
+
ResultTy = getTypeByID(Record[2]);
if (ResultTy == 0 || ArgTys.size() < Record.size()-3)
return Error("invalid type in function type");
@@ -626,7 +626,7 @@ bool BitcodeReader::ParseTypeTableBody() {
else
break;
}
-
+
ResultTy = getTypeByID(Record[1]);
if (ResultTy == 0 || ArgTys.size() < Record.size()-2)
return Error("invalid type in function type");
@@ -657,10 +657,10 @@ bool BitcodeReader::ParseTypeTableBody() {
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) {
@@ -669,7 +669,7 @@ bool BitcodeReader::ParseTypeTableBody() {
} 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]))
@@ -689,7 +689,7 @@ bool BitcodeReader::ParseTypeTableBody() {
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) {
@@ -700,7 +700,7 @@ bool BitcodeReader::ParseTypeTableBody() {
TypeName.clear();
ResultTy = Res;
break;
- }
+ }
case bitc::TYPE_CODE_ARRAY: // ARRAY: [numelts, eltty]
if (Record.size() < 2)
return Error("Invalid ARRAY type record");
@@ -1006,7 +1006,7 @@ bool BitcodeReader::ParseConstants() {
APInt VInt = ReadWideAPInt(Record,
cast<IntegerType>(CurTy)->getBitWidth());
V = ConstantInt::get(Context, VInt);
-
+
break;
}
case bitc::CST_CODE_FLOAT: { // FLOAT: [fpval]
@@ -1073,10 +1073,10 @@ bool BitcodeReader::ParseConstants() {
case bitc::CST_CODE_DATA: {// DATA: [n x value]
if (Record.empty())
return Error("Invalid CST_DATA record");
-
+
Type *EltTy = cast<SequentialType>(CurTy)->getElementType();
unsigned Size = Record.size();
-
+
if (EltTy->isIntegerTy(8)) {
SmallVector<uint8_t, 16> Elts(Record.begin(), Record.end());
if (isa<VectorType>(CurTy))
@@ -1182,10 +1182,11 @@ bool BitcodeReader::ParseConstants() {
}
case bitc::CST_CODE_CE_SELECT: // CE_SELECT: [opval#, opval#, opval#]
if (Record.size() < 3) return Error("Invalid CE_SELECT record");
- V = ConstantExpr::getSelect(ValueList.getConstantFwdRef(Record[0],
- Type::getInt1Ty(Context)),
- ValueList.getConstantFwdRef(Record[1],CurTy),
- ValueList.getConstantFwdRef(Record[2],CurTy));
+ V = ConstantExpr::getSelect(
+ ValueList.getConstantFwdRef(Record[0],
+ Type::getInt1Ty(Context)),
+ ValueList.getConstantFwdRef(Record[1],CurTy),
+ ValueList.getConstantFwdRef(Record[2],CurTy));
break;
case bitc::CST_CODE_CE_EXTRACTELT: { // CE_EXTRACTELT: [opty, opval, opval]
if (Record.size() < 3) return Error("Invalid CE_EXTRACTELT record");
@@ -1193,7 +1194,8 @@ bool BitcodeReader::ParseConstants() {
dyn_cast_or_null<VectorType>(getTypeByID(Record[0]));
if (OpTy == 0) return Error("Invalid CE_EXTRACTELT record");
Constant *Op0 = ValueList.getConstantFwdRef(Record[1], OpTy);
- Constant *Op1 = ValueList.getConstantFwdRef(Record[2], Type::getInt32Ty(Context));
+ Constant *Op1 = ValueList.getConstantFwdRef(Record[2],
+ Type::getInt32Ty(Context));
V = ConstantExpr::getExtractElement(Op0, Op1);
break;
}
@@ -1204,7 +1206,8 @@ bool BitcodeReader::ParseConstants() {
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 = ValueList.getConstantFwdRef(Record[2],
+ Type::getInt32Ty(Context));
V = ConstantExpr::getInsertElement(Op0, Op1, Op2);
break;
}
@@ -1324,7 +1327,7 @@ bool BitcodeReader::ParseConstants() {
V = FwdRef;
}
break;
- }
+ }
}
ValueList.AssignValue(V, NextCstNo);
@@ -1348,7 +1351,7 @@ bool BitcodeReader::ParseUseLists() {
return Error("Malformed block record");
SmallVector<uint64_t, 64> Record;
-
+
// Read all the records.
while (1) {
unsigned Code = Stream.ReadCode();
@@ -1357,7 +1360,7 @@ bool BitcodeReader::ParseUseLists() {
return Error("Error at end of use-list table block");
return false;
}
-
+
if (Code == bitc::ENTER_SUBBLOCK) {
// No known subblocks, always skip them.
Stream.ReadSubBlockID();
@@ -1365,12 +1368,12 @@ bool BitcodeReader::ParseUseLists() {
return Error("Malformed block record");
continue;
}
-
+
if (Code == bitc::DEFINE_ABBREV) {
Stream.ReadAbbrevRecord();
continue;
}
-
+
// Read a use list record.
Record.clear();
switch (Stream.ReadRecord(Code, Record)) {
@@ -1927,7 +1930,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
unsigned CurBBNo = 0;
DebugLoc LastLoc;
-
+
// Read all the records.
SmallVector<uint64_t, 64> Record;
while (1) {
@@ -1982,24 +1985,24 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
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())
@@ -2009,10 +2012,10 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
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));
@@ -2280,10 +2283,10 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
break;
}
case bitc::FUNC_CODE_INST_SWITCH: { // SWITCH: [opty, op0, op1, ...]
- // Check magic
+ // Check magic
if ((Record[0] >> 16) == SWITCH_INST_MAGIC) {
// New SwitchInst format with case ranges.
-
+
Type *OpTy = getTypeByID(Record[1]);
unsigned ValueBitWidth = cast<IntegerType>(OpTy)->getBitWidth();
@@ -2293,17 +2296,17 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
return Error("Invalid SWITCH record");
unsigned NumCases = Record[4];
-
+
SwitchInst *SI = SwitchInst::Create(Cond, Default, NumCases);
InstructionList.push_back(SI);
-
+
unsigned CurIdx = 5;
for (unsigned i = 0; i != NumCases; ++i) {
IntegersSubsetToBB CaseBuilder;
unsigned NumItems = Record[CurIdx++];
for (unsigned ci = 0; ci != NumItems; ++ci) {
bool isSingleNumber = Record[CurIdx++];
-
+
APInt Low;
unsigned ActiveWords = 1;
if (ValueBitWidth > 64)
@@ -2319,7 +2322,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
APInt High =
ReadWideAPInt(makeArrayRef(&Record[CurIdx], ActiveWords),
ValueBitWidth);
-
+
CaseBuilder.add(IntItem::fromType(OpTy, Low),
IntItem::fromType(OpTy, High));
CurIdx += ActiveWords;
@@ -2327,7 +2330,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
CaseBuilder.add(IntItem::fromType(OpTy, Low));
}
BasicBlock *DestBB = getBasicBlock(Record[CurIdx++]);
- IntegersSubset Case = CaseBuilder.getCase();
+ IntegersSubset Case = CaseBuilder.getCase();
SI->addCase(Case, DestBB);
}
uint16_t Hash = SI->hash();
@@ -2336,9 +2339,9 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
I = SI;
break;
}
-
+
// Old SwitchInst format without case ranges.
-
+
if (Record.size() < 3 || (Record.size() & 1) == 0)
return Error("Invalid SWITCH record");
Type *OpTy = getTypeByID(Record[0]);
@@ -2383,7 +2386,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
I = IBI;
break;
}
-
+
case bitc::FUNC_CODE_INST_INVOKE: {
// INVOKE: [attrs, cc, normBB, unwindBB, fnty, op0,op1,op2, ...]
if (Record.size() < 4) return Error("Invalid INVOKE record");
@@ -2542,7 +2545,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
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 ||
@@ -2758,15 +2761,15 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
unsigned BlockIdx = RefList[i].first;
if (BlockIdx >= FunctionBBs.size())
return Error("Invalid blockaddress block #");
-
+
GlobalVariable *FwdRef = RefList[i].second;
FwdRef->replaceAllUsesWith(BlockAddress::get(F, FunctionBBs[BlockIdx]));
FwdRef->eraseFromParent();
}
-
+
BlockAddrFwdRefs.erase(BAFRI);
}
-
+
// Trim the value list down to the size it was before we parsed this function.
ValueList.shrinkTo(ModuleValueListSize);
MDValueList.shrinkTo(ModuleMDValueListSize);
diff --git a/lib/Bitcode/Reader/BitcodeReader.h b/lib/Bitcode/Reader/BitcodeReader.h
index 3d5c0eb4de..f3b516ecfd 100644
--- a/lib/Bitcode/Reader/BitcodeReader.h
+++ b/lib/Bitcode/Reader/BitcodeReader.h
@@ -27,14 +27,14 @@
namespace llvm {
class MemoryBuffer;
class LLVMContext;
-
+
//===----------------------------------------------------------------------===//
// BitcodeReaderValueList Class
//===----------------------------------------------------------------------===//
class BitcodeReaderValueList {
std::vector<WeakVH> ValuePtrs;
-
+
/// ResolveConstants - As we resolve forward-referenced constants, we add
/// information about them to this vector. This allows us to resolve them in
/// bulk instead of resolving each reference at a time. See the code in
@@ -57,17 +57,17 @@ public:
void push_back(Value *V) {
ValuePtrs.push_back(V);
}
-
+
void clear() {
assert(ResolveConstants.empty() && "Constants not resolved?");
ValuePtrs.clear();
}
-
+
Value *operator[](unsigned i) const {
assert(i < ValuePtrs.size());
return ValuePtrs[i];
}
-
+
Value *back() const { return ValuePtrs.back(); }
void pop_back() { ValuePtrs.pop_back(); }
bool empty() const { return ValuePtrs.empty(); }
@@ -75,12 +75,12 @@ public:
assert(N <= size() && "Invalid shrinkTo request!");
ValuePtrs.resize(N);
}
-
+
Constant *getConstantFwdRef(unsigned Idx, Type *Ty);
Value *getValueFwdRef(unsigned Idx, Type *Ty);
-
+
void AssignValue(Value *V, unsigned Idx);
-
+
/// ResolveConstantForwardRefs - Once all constants are read, this method bulk
/// resolves any forward references.
void ResolveConstantForwardRefs();
@@ -93,7 +93,7 @@ public:
class BitcodeReaderMDValueList {
std::vector<WeakVH> MDValuePtrs;
-
+
LLVMContext &Context;
public:
BitcodeReaderMDValueList(LLVMContext& C) : Context(C) {}
@@ -106,12 +106,12 @@ public:
Value *back() const { return MDValuePtrs.back(); }
void pop_back() { MDValuePtrs.pop_back(); }
bool empty() const { return MDValuePtrs.empty(); }
-
+
Value *operator[](unsigned i) const {
assert(i < MDValuePtrs.size());
return MDValuePtrs[i];
}
-
+
void shrinkTo(unsigned N) {
assert(N <= size() && "Invalid shrinkTo request!");
MDValuePtrs.resize(N);
@@ -131,9 +131,9 @@ class BitcodeReader : public GVMaterializer {
DataStreamer *LazyStreamer;
uint64_t NextUnreadBit;
bool SeenValueSymbolTable;
-
+
const char *ErrorString;
-
+
std::vector<Type*> TypeList;
BitcodeReaderValueList ValueList;
BitcodeReaderMDValueList MDValueList;
@@ -142,38 +142,38 @@ class BitcodeReader : public GVMaterializer {
std::vector<std::pair<GlobalVariable*, unsigned> > GlobalInits;
std::vector<std::pair<GlobalAlias*, unsigned> > AliasInits;
-
+
/// MAttributes - The set of attributes by index. Index zero in the
/// file is for null, and is thus not represented here. As such all indices
/// are off by one.
std::vector<AttrListPtr> MAttributes;
-
+
/// FunctionBBs - While parsing a function body, this is a list of the basic
/// blocks for the function.
std::vector<BasicBlock*> FunctionBBs;
-
+
// When reading the module header, this list is populated with functions that
// have bodies later in the file.
std::vector<Function*> FunctionsWithBodies;
- // When intrinsic functions are encountered which require upgrading they are
+ // When intrinsic functions are encountered which require upgrading they are
// stored here with their replacement function.
typedef std::vector<std::pair<Function*, Function*> > UpgradedIntrinsicMap;
UpgradedIntrinsicMap UpgradedIntrinsics;
// Map the bitcode's custom MDKind ID to the Module's MDKind ID.
DenseMap<unsigned, unsigned> MDKindMap;
-
+
// Several operations happen after the module header has been read, but
// before function bodies are processed. This keeps track of whether
// we've done this yet.
bool SeenFirstFunctionBody;
-
+
/// DeferredFunctionInfo - When function bodies are initially scanned, this
/// map contains info about where to find deferred function body in the
/// stream.
DenseMap<Function*, uint64_t> DeferredFunctionInfo;
-
+
/// BlockAddrFwdRefs - These are blockaddr references to basic blocks. These
/// are resolved lazily when functions are loaded.
typedef std::pair<unsigned, GlobalVariable*> BlockAddrRefTy;
@@ -208,11 +208,11 @@ public:
void materializeForwardReferencedFunctions();
void FreeState();
-
+
/// setBufferOwned - If this is true, the reader will destroy the MemoryBuffer
/// when the reader is destroyed.
void setBufferOwned(bool Owned) { BufferOwned = Owned; }
-
+
virtual bool isMaterializable(const GlobalValue *GV) const;
virtual bool isDematerializable(const GlobalValue *GV) const;
virtual bool Materialize(GlobalValue *GV, std::string *ErrInfo = 0);
@@ -224,7 +224,7 @@ public:
return true;
}
const char *getErrorString() const { return ErrorString; }
-
+
/// @brief Main interface to parsing a bitcode buffer.
/// @returns true if an error occurred.
bool ParseBitcodeInto(Module *M);
@@ -251,7 +251,7 @@ private:
return MAttributes[i-1];
return AttrListPtr();
}
-
+
/// getValueTypePair - Read a value/type pair out of the specified record from
/// slot 'Slot'. Increment Slot past the number of slots used in the record.
/// Return true on failure.
@@ -339,7 +339,7 @@ private:
bool FindFunctionInStream(Function *F,
DenseMap<Function*, uint64_t>::iterator DeferredFunctionInfoIterator);
};
-
+
} // End llvm namespace
#endif
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-08-04 18:58:55 +0000