BitcodeReader.cpp File Reference

#include "llvm/Bitcode/BitcodeReader.h"
#include "MetadataLoader.h"
#include "ValueList.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Bitcode/BitcodeCommon.h"
#include "llvm/Bitcode/LLVMBitCodes.h"
#include "llvm/Bitstream/BitstreamReader.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/AutoUpgrade.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Comdat.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GVMaterializer.h"
#include "llvm/IR/GetElementPtrTypeIterator.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalIFunc.h"
#include "llvm/IR/GlobalObject.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IntrinsicsAArch64.h"
#include "llvm/IR/IntrinsicsARM.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/ModuleSummaryIndex.h"
#include "llvm/IR/Operator.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/IR/Verifier.h"
#include "llvm/Support/AtomicOrdering.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/ModRef.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <deque>
#include <map>
#include <memory>
#include <optional>
#include <set>
#include <string>
#include <system_error>
#include <tuple>
#include <utility>
#include <vector>

Go to the source code of this file.

Functions
static Error	error (const Twine &Message)
static Error	hasInvalidBitcodeHeader (BitstreamCursor &Stream)
static Expected< BitstreamCursor >	initStream (MemoryBufferRef Buffer)
template<typename StrTy >
static bool	convertToString (ArrayRef< uint64_t > Record, unsigned Idx, StrTy &Result)
	Convert a string from a record into an std::string, return true on failure. More...
static void	stripTBAA (Module *M)
static Expected< std::string >	readIdentificationBlock (BitstreamCursor &Stream)
	Read the "IDENTIFICATION_BLOCK_ID" block, do some basic enforcement on the "epoch" encoded in the bitcode, and return the producer name if any. More...
static Expected< std::string >	readIdentificationCode (BitstreamCursor &Stream)
static Expected< bool >	hasObjCCategoryInModule (BitstreamCursor &Stream)
static Expected< bool >	hasObjCCategory (BitstreamCursor &Stream)
static Expected< std::string >	readModuleTriple (BitstreamCursor &Stream)
static Expected< std::string >	readTriple (BitstreamCursor &Stream)
static bool	hasImplicitComdat (size_t Val)
static GlobalValue::LinkageTypes	getDecodedLinkage (unsigned Val)
static FunctionSummary::FFlags	getDecodedFFlags (uint64_t RawFlags)
static GlobalValueSummary::GVFlags	getDecodedGVSummaryFlags (uint64_t RawFlags, uint64_t Version)
static GlobalVarSummary::GVarFlags	getDecodedGVarFlags (uint64_t RawFlags)
static GlobalValue::VisibilityTypes	getDecodedVisibility (unsigned Val)
static GlobalValue::DLLStorageClassTypes	getDecodedDLLStorageClass (unsigned Val)
static bool	getDecodedDSOLocal (unsigned Val)
static GlobalVariable::ThreadLocalMode	getDecodedThreadLocalMode (unsigned Val)
static GlobalVariable::UnnamedAddr	getDecodedUnnamedAddrType (unsigned Val)
static int	getDecodedCastOpcode (unsigned Val)
static int	getDecodedUnaryOpcode (unsigned Val, Type *Ty)
static int	getDecodedBinaryOpcode (unsigned Val, Type *Ty)
static AtomicRMWInst::BinOp	getDecodedRMWOperation (unsigned Val)
static AtomicOrdering	getDecodedOrdering (unsigned Val)
static Comdat::SelectionKind	getDecodedComdatSelectionKind (unsigned Val)
static FastMathFlags	getDecodedFastMathFlags (unsigned Val)
static void	upgradeDLLImportExportLinkage (GlobalValue *GV, unsigned Val)
static bool	isConstExprSupported (uint8_t Opcode)
static uint64_t	getRawAttributeMask (Attribute::AttrKind Val)
static void	addRawAttributeValue (AttrBuilder &B, uint64_t Val)
static void	decodeLLVMAttributesForBitcode (AttrBuilder &B, uint64_t EncodedAttrs, uint64_t AttrIdx)
	This fills an AttrBuilder object with the LLVM attributes that have been decoded from the given integer. More...
static Attribute::AttrKind	getAttrFromCode (uint64_t Code)
static bool	upgradeOldMemoryAttribute (MemoryEffects &ME, uint64_t EncodedKind)
static Expected< uint64_t >	jumpToValueSymbolTable (uint64_t Offset, BitstreamCursor &Stream)
	Helper to note and return the current location, and jump to the given offset. More...
static void	inferDSOLocal (GlobalValue *GV)
GlobalValue::SanitizerMetadata	deserializeSanitizerMetadata (unsigned V)
static void	parseWholeProgramDevirtResolutionByArg (ArrayRef< uint64_t > Record, size_t &Slot, WholeProgramDevirtResolution &Wpd)
static void	parseWholeProgramDevirtResolution (ArrayRef< uint64_t > Record, StringRef Strtab, size_t &Slot, TypeIdSummary &TypeId)
static void	parseTypeIdSummaryRecord (ArrayRef< uint64_t > Record, StringRef Strtab, ModuleSummaryIndex &TheIndex)
static void	setSpecialRefs (std::vector< ValueInfo > &Refs, unsigned ROCnt, unsigned WOCnt)
static Expected< StringRef >	readBlobInRecord (BitstreamCursor &Stream, unsigned Block, unsigned RecordID)
static Expected< bool >	getEnableSplitLTOUnitFlag (BitstreamCursor &Stream, unsigned ID)
static Expected< BitcodeModule >	getSingleModule (MemoryBufferRef Buffer)

Variables
static cl::opt< bool >	PrintSummaryGUIDs ("print-summary-global-ids", cl::init(false), cl::Hidden, cl::desc("Print the global id for each value when reading the module summary"))
static cl::opt< bool >	ExpandConstantExprs ("expand-constant-exprs", cl::Hidden, cl::desc("Expand constant expressions to instructions for testing purposes"))

Function Documentation

addRawAttributeValue()

static void addRawAttributeValue ( AttrBuilder &  B, uint64_t  Val  )

static

Definition at line 1761 of file BitcodeReader.cpp.

References A, B, getRawAttributeMask(), I, and llvm::None.

Referenced by decodeLLVMAttributesForBitcode().

convertToString()

template<typename StrTy >

static bool convertToString ( ArrayRef< uint64_t >  Record, unsigned  Idx, StrTy &  Result  )

static

Convert a string from a record into an std::string, return true on failure.

Definition at line 159 of file BitcodeReader.cpp.

decodeLLVMAttributesForBitcode()

static void decodeLLVMAttributesForBitcode ( AttrBuilder &  B, uint64_t  EncodedAttrs, uint64_t  AttrIdx  )

static

This fills an AttrBuilder object with the LLVM attributes that have been decoded from the given integer.

This function must stay in sync with 'encodeLLVMAttributesForBitcode'.

Definition at line 1782 of file BitcodeReader.cpp.

References addRawAttributeValue(), assert(), Attrs, B, llvm::isPowerOf2_32(), none, and llvm::binaryformat::unknown.

deserializeSanitizerMetadata()

GlobalValue::SanitizerMetadata deserializeSanitizerMetadata

(

unsigned

V

)

Definition at line 3764 of file BitcodeReader.cpp.

error()

static Error error ( const Twine &  Message )

static

Definition at line 111 of file BitcodeReader.cpp.

References llvm::CorruptedBitcode, and llvm::make_error_code().

Referenced by getSingleModule(), initStream(), and jumpToValueSymbolTable().

getAttrFromCode()

static Attribute::AttrKind getAttrFromCode ( uint64_t  Code )

static

Definition at line 1895 of file BitcodeReader.cpp.

References llvm::bitc::ATTR_KIND_ALIGNMENT, llvm::bitc::ATTR_KIND_ALLOC_ALIGN, llvm::bitc::ATTR_KIND_ALLOC_KIND, llvm::bitc::ATTR_KIND_ALLOC_SIZE, llvm::bitc::ATTR_KIND_ALLOCATED_POINTER, llvm::bitc::ATTR_KIND_ALWAYS_INLINE, llvm::bitc::ATTR_KIND_BUILTIN, llvm::bitc::ATTR_KIND_BY_VAL, llvm::bitc::ATTR_KIND_BYREF, llvm::bitc::ATTR_KIND_COLD, llvm::bitc::ATTR_KIND_CONVERGENT, llvm::bitc::ATTR_KIND_DEREFERENCEABLE, llvm::bitc::ATTR_KIND_DEREFERENCEABLE_OR_NULL, llvm::bitc::ATTR_KIND_DISABLE_SANITIZER_INSTRUMENTATION, llvm::bitc::ATTR_KIND_ELEMENTTYPE, llvm::bitc::ATTR_KIND_FNRETTHUNK_EXTERN, llvm::bitc::ATTR_KIND_HOT, llvm::bitc::ATTR_KIND_IMMARG, llvm::bitc::ATTR_KIND_IN_ALLOCA, llvm::bitc::ATTR_KIND_IN_REG, llvm::bitc::ATTR_KIND_INLINE_HINT, llvm::bitc::ATTR_KIND_JUMP_TABLE, llvm::bitc::ATTR_KIND_MEMORY, llvm::bitc::ATTR_KIND_MIN_SIZE, llvm::bitc::ATTR_KIND_MUSTPROGRESS, llvm::bitc::ATTR_KIND_NAKED, llvm::bitc::ATTR_KIND_NEST, llvm::bitc::ATTR_KIND_NO_ALIAS, llvm::bitc::ATTR_KIND_NO_BUILTIN, llvm::bitc::ATTR_KIND_NO_CALLBACK, llvm::bitc::ATTR_KIND_NO_CAPTURE, llvm::bitc::ATTR_KIND_NO_DUPLICATE, llvm::bitc::ATTR_KIND_NO_IMPLICIT_FLOAT, llvm::bitc::ATTR_KIND_NO_INLINE, llvm::bitc::ATTR_KIND_NO_MERGE, llvm::bitc::ATTR_KIND_NO_PROFILE, llvm::bitc::ATTR_KIND_NO_RECURSE, llvm::bitc::ATTR_KIND_NO_RED_ZONE, llvm::bitc::ATTR_KIND_NO_RETURN, llvm::bitc::ATTR_KIND_NO_SANITIZE_BOUNDS, llvm::bitc::ATTR_KIND_NO_SANITIZE_COVERAGE, llvm::bitc::ATTR_KIND_NO_UNWIND, llvm::bitc::ATTR_KIND_NOCF_CHECK, llvm::bitc::ATTR_KIND_NOFREE, llvm::bitc::ATTR_KIND_NON_LAZY_BIND, llvm::bitc::ATTR_KIND_NON_NULL, llvm::bitc::ATTR_KIND_NOSYNC, llvm::bitc::ATTR_KIND_NOUNDEF, llvm::bitc::ATTR_KIND_NULL_POINTER_IS_VALID, llvm::bitc::ATTR_KIND_OPT_FOR_FUZZING, llvm::bitc::ATTR_KIND_OPTIMIZE_FOR_SIZE, llvm::bitc::ATTR_KIND_OPTIMIZE_NONE, llvm::bitc::ATTR_KIND_PREALLOCATED, llvm::bitc::ATTR_KIND_PRESPLIT_COROUTINE, llvm::bitc::ATTR_KIND_READ_NONE, llvm::bitc::ATTR_KIND_READ_ONLY, llvm::bitc::ATTR_KIND_RETURNED, llvm::bitc::ATTR_KIND_RETURNS_TWICE, llvm::bitc::ATTR_KIND_S_EXT, llvm::bitc::ATTR_KIND_SAFESTACK, llvm::bitc::ATTR_KIND_SANITIZE_ADDRESS, llvm::bitc::ATTR_KIND_SANITIZE_HWADDRESS, llvm::bitc::ATTR_KIND_SANITIZE_MEMORY, llvm::bitc::ATTR_KIND_SANITIZE_MEMTAG, llvm::bitc::ATTR_KIND_SANITIZE_THREAD, llvm::bitc::ATTR_KIND_SHADOWCALLSTACK, llvm::bitc::ATTR_KIND_SKIP_PROFILE, llvm::bitc::ATTR_KIND_SPECULATABLE, llvm::bitc::ATTR_KIND_SPECULATIVE_LOAD_HARDENING, llvm::bitc::ATTR_KIND_STACK_ALIGNMENT, llvm::bitc::ATTR_KIND_STACK_PROTECT, llvm::bitc::ATTR_KIND_STACK_PROTECT_REQ, llvm::bitc::ATTR_KIND_STACK_PROTECT_STRONG, llvm::bitc::ATTR_KIND_STRICT_FP, llvm::bitc::ATTR_KIND_STRUCT_RET, llvm::bitc::ATTR_KIND_SWIFT_ASYNC, llvm::bitc::ATTR_KIND_SWIFT_ERROR, llvm::bitc::ATTR_KIND_SWIFT_SELF, llvm::bitc::ATTR_KIND_UW_TABLE, llvm::bitc::ATTR_KIND_VSCALE_RANGE, llvm::bitc::ATTR_KIND_WILLRETURN, llvm::bitc::ATTR_KIND_WRITEONLY, llvm::bitc::ATTR_KIND_Z_EXT, llvm::tgtok::Code, llvm::CallingConv::Cold, llvm::MCID::Convergent, JumpTable, and llvm::None.

getDecodedBinaryOpcode()

static int getDecodedBinaryOpcode ( unsigned  Val, Type *  Ty  )

static

Definition at line 1203 of file BitcodeReader.cpp.

References llvm::MCID::Add, llvm::bitc::BINOP_ADD, llvm::bitc::BINOP_AND, llvm::bitc::BINOP_ASHR, llvm::bitc::BINOP_LSHR, llvm::bitc::BINOP_MUL, llvm::bitc::BINOP_OR, llvm::bitc::BINOP_SDIV, llvm::bitc::BINOP_SHL, llvm::bitc::BINOP_SREM, llvm::bitc::BINOP_SUB, llvm::bitc::BINOP_UDIV, llvm::bitc::BINOP_UREM, llvm::bitc::BINOP_XOR, llvm::Type::isFPOrFPVectorTy(), llvm::Type::isIntOrIntVectorTy(), and Mul.

getDecodedCastOpcode()

static int getDecodedCastOpcode ( unsigned  Val )

static

Definition at line 1170 of file BitcodeReader.cpp.

References llvm::bitc::CAST_ADDRSPACECAST, llvm::bitc::CAST_BITCAST, llvm::bitc::CAST_FPEXT, llvm::bitc::CAST_FPTOSI, llvm::bitc::CAST_FPTOUI, llvm::bitc::CAST_FPTRUNC, llvm::bitc::CAST_INTTOPTR, llvm::bitc::CAST_PTRTOINT, llvm::bitc::CAST_SEXT, llvm::bitc::CAST_SITOFP, llvm::bitc::CAST_TRUNC, llvm::bitc::CAST_UITOFP, and llvm::bitc::CAST_ZEXT.

getDecodedComdatSelectionKind()

static Comdat::SelectionKind getDecodedComdatSelectionKind ( unsigned  Val )

static

Definition at line 1275 of file BitcodeReader.cpp.

References llvm::SystemZICMP::Any, llvm::bitc::COMDAT_SELECTION_KIND_ANY, llvm::bitc::COMDAT_SELECTION_KIND_EXACT_MATCH, llvm::bitc::COMDAT_SELECTION_KIND_LARGEST, llvm::bitc::COMDAT_SELECTION_KIND_NO_DUPLICATES, and llvm::bitc::COMDAT_SELECTION_KIND_SAME_SIZE.

getDecodedDLLStorageClass()

static GlobalValue::DLLStorageClassTypes getDecodedDLLStorageClass ( unsigned  Val )

static

Definition at line 1133 of file BitcodeReader.cpp.

getDecodedDSOLocal()

static bool getDecodedDSOLocal ( unsigned  Val )

static

Definition at line 1142 of file BitcodeReader.cpp.

getDecodedFastMathFlags()

static FastMathFlags getDecodedFastMathFlags ( unsigned  Val )

static

Definition at line 1291 of file BitcodeReader.cpp.

References llvm::bitc::AllowContract, llvm::bitc::AllowReassoc, llvm::bitc::AllowReciprocal, llvm::bitc::ApproxFunc, llvm::bitc::NoInfs, llvm::bitc::NoNaNs, llvm::bitc::NoSignedZeros, llvm::FastMathFlags::setAllowContract(), llvm::FastMathFlags::setAllowReassoc(), llvm::FastMathFlags::setAllowReciprocal(), llvm::FastMathFlags::setApproxFunc(), llvm::FastMathFlags::setFast(), llvm::FastMathFlags::setNoInfs(), llvm::FastMathFlags::setNoNaNs(), llvm::FastMathFlags::setNoSignedZeros(), and llvm::bitc::UnsafeAlgebra.

getDecodedFFlags()

static FunctionSummary::FFlags getDecodedFFlags ( uint64_t  RawFlags )

static

Definition at line 1076 of file BitcodeReader.cpp.

getDecodedGVarFlags()

static GlobalVarSummary::GVarFlags getDecodedGVarFlags ( uint64_t  RawFlags )

static

Definition at line 1116 of file BitcodeReader.cpp.

References x2().

getDecodedGVSummaryFlags()

static GlobalValueSummary::GVFlags getDecodedGVSummaryFlags ( uint64_t  RawFlags, uint64_t  Version  )

static

Definition at line 1095 of file BitcodeReader.cpp.

References llvm::IndexedInstrProf::Version.

getDecodedLinkage()

static GlobalValue::LinkageTypes getDecodedLinkage ( unsigned  Val )

static

Definition at line 1034 of file BitcodeReader.cpp.

getDecodedOrdering()

static AtomicOrdering getDecodedOrdering ( unsigned  Val )

static

Definition at line 1262 of file BitcodeReader.cpp.

References llvm::bitc::ORDERING_ACQREL, llvm::bitc::ORDERING_ACQUIRE, llvm::bitc::ORDERING_MONOTONIC, llvm::bitc::ORDERING_NOTATOMIC, llvm::bitc::ORDERING_RELEASE, llvm::bitc::ORDERING_SEQCST, llvm::bitc::ORDERING_UNORDERED, and Unordered.

getDecodedRMWOperation()

static AtomicRMWInst::BinOp getDecodedRMWOperation ( unsigned  Val )

static

Definition at line 1241 of file BitcodeReader.cpp.

References llvm::MCID::Add, llvm::bitc::RMW_ADD, llvm::bitc::RMW_AND, llvm::bitc::RMW_FADD, llvm::bitc::RMW_FMAX, llvm::bitc::RMW_FMIN, llvm::bitc::RMW_FSUB, llvm::bitc::RMW_MAX, llvm::bitc::RMW_MIN, llvm::bitc::RMW_NAND, llvm::bitc::RMW_OR, llvm::bitc::RMW_SUB, llvm::bitc::RMW_UMAX, llvm::bitc::RMW_UMIN, llvm::bitc::RMW_XCHG, and llvm::bitc::RMW_XOR.

getDecodedThreadLocalMode()

static GlobalVariable::ThreadLocalMode getDecodedThreadLocalMode ( unsigned  Val )

static

Definition at line 1150 of file BitcodeReader.cpp.

getDecodedUnaryOpcode()

static int getDecodedUnaryOpcode ( unsigned  Val, Type *  Ty  )

static

Definition at line 1189 of file BitcodeReader.cpp.

References llvm::Type::isFPOrFPVectorTy(), llvm::Type::isIntOrIntVectorTy(), and llvm::bitc::UNOP_FNEG.

getDecodedUnnamedAddrType()

static GlobalVariable::UnnamedAddr getDecodedUnnamedAddrType ( unsigned  Val )

static

Definition at line 1161 of file BitcodeReader.cpp.

References llvm::None.

getDecodedVisibility()

static GlobalValue::VisibilityTypes getDecodedVisibility ( unsigned  Val )

static

Definition at line 1123 of file BitcodeReader.cpp.

getEnableSplitLTOUnitFlag()

static Expected<bool> getEnableSplitLTOUnitFlag ( BitstreamCursor &  Stream, unsigned  ID  )

static

Definition at line 7953 of file BitcodeReader.cpp.

getRawAttributeMask()

static uint64_t getRawAttributeMask ( Attribute::AttrKind  Val )

static

Definition at line 1683 of file BitcodeReader.cpp.

References llvm::CallingConv::Cold, llvm::MCID::Convergent, JumpTable, llvm_unreachable, and llvm::None.

Referenced by addRawAttributeValue().

getSingleModule()

static Expected<BitcodeModule> getSingleModule ( MemoryBufferRef  Buffer )

static

Definition at line 8051 of file BitcodeReader.cpp.

References error(), llvm::getBitcodeModuleList(), and llvm::Expected< T >::takeError().

Referenced by llvm::getBitcodeLTOInfo(), llvm::getLazyBitcodeModule(), llvm::getModuleSummaryIndex(), llvm::parseBitcodeFile(), and llvm::readModuleSummaryIndex().

hasImplicitComdat()

static bool hasImplicitComdat ( size_t  Val )

static

Definition at line 1022 of file BitcodeReader.cpp.

hasInvalidBitcodeHeader()

static Error hasInvalidBitcodeHeader ( BitstreamCursor &  Stream )

static

Definition at line 116 of file BitcodeReader.cpp.

References llvm::BitstreamCursor::canSkipToPos(), llvm::createStringError(), llvm::BitstreamCursor::Read(), and llvm::Error::success().

hasObjCCategory()

static Expected<bool> hasObjCCategory ( BitstreamCursor &  Stream )

static

Definition at line 307 of file BitcodeReader.cpp.

Referenced by llvm::isBitcodeContainingObjCCategory().

hasObjCCategoryInModule()

static Expected<bool> hasObjCCategoryInModule ( BitstreamCursor &  Stream )

static

Definition at line 260 of file BitcodeReader.cpp.

inferDSOLocal()

static void inferDSOLocal ( GlobalValue *  GV )

static

Definition at line 3757 of file BitcodeReader.cpp.

References llvm::GlobalValue::hasDefaultVisibility(), llvm::GlobalValue::hasExternalWeakLinkage(), llvm::GlobalValue::hasLocalLinkage(), and llvm::GlobalValue::setDSOLocal().

initStream()

static Expected<BitstreamCursor> initStream ( MemoryBufferRef  Buffer )

static

Definition at line 137 of file BitcodeReader.cpp.

References error(), llvm::MemoryBufferRef::getBufferSize(), llvm::MemoryBufferRef::getBufferStart(), llvm::isBitcodeWrapper(), and llvm::SkipBitcodeWrapperHeader().

Referenced by llvm::getBitcodeFileContents(), llvm::getBitcodeProducerString(), llvm::getBitcodeTargetTriple(), and llvm::isBitcodeContainingObjCCategory().

isConstExprSupported()

static bool isConstExprSupported ( uint8_t  Opcode )

static

Definition at line 1398 of file BitcodeReader.cpp.

References ExpandConstantExprs.

jumpToValueSymbolTable()

static Expected<uint64_t> jumpToValueSymbolTable ( uint64_t  Offset, BitstreamCursor &  Stream  )

static

Helper to note and return the current location, and jump to the given offset.

Definition at line 2639 of file BitcodeReader.cpp.

References llvm::BitstreamCursor::advance(), error(), llvm::Expected< T >::get(), llvm::BitstreamCursor::GetCurrentBitNo(), llvm::BitstreamCursor::JumpToBit(), move, Offset, llvm::Expected< T >::takeError(), and llvm::bitc::VALUE_SYMTAB_BLOCK_ID.

parseTypeIdSummaryRecord()

static void parseTypeIdSummaryRecord ( ArrayRef< uint64_t >  Record, StringRef  Strtab, ModuleSummaryIndex &  TheIndex  )

static

Definition at line 7005 of file BitcodeReader.cpp.

References llvm::TypeTestResolution::AlignLog2, llvm::TypeTestResolution::BitMask, llvm::StringRef::data(), llvm::ModuleSummaryIndex::getOrInsertTypeIdSummary(), llvm::TypeTestResolution::InlineBits, parseWholeProgramDevirtResolution(), llvm::TypeTestResolution::SizeM1, llvm::TypeTestResolution::SizeM1BitWidth, llvm::TypeTestResolution::TheKind, and llvm::TypeIdSummary::TTRes.

parseWholeProgramDevirtResolution()

static void parseWholeProgramDevirtResolution ( ArrayRef< uint64_t >  Record, StringRef  Strtab, size_t &  Slot, TypeIdSummary &  TypeId  )

static

Definition at line 6989 of file BitcodeReader.cpp.

References llvm::StringRef::data(), I, parseWholeProgramDevirtResolutionByArg(), llvm::WholeProgramDevirtResolution::SingleImplName, llvm::WholeProgramDevirtResolution::TheKind, and llvm::TypeIdSummary::WPDRes.

Referenced by parseTypeIdSummaryRecord().

parseWholeProgramDevirtResolutionByArg()

static void parseWholeProgramDevirtResolutionByArg ( ArrayRef< uint64_t >  Record, size_t &  Slot, WholeProgramDevirtResolution &  Wpd  )

static

Definition at line 6975 of file BitcodeReader.cpp.

References B, and llvm::WholeProgramDevirtResolution::ResByArg.

Referenced by parseWholeProgramDevirtResolution().

readBlobInRecord()

static Expected<StringRef> readBlobInRecord ( BitstreamCursor &  Stream, unsigned  Block, unsigned  RecordID  )

static

Definition at line 7706 of file BitcodeReader.cpp.

readIdentificationBlock()

static Expected<std::string> readIdentificationBlock ( BitstreamCursor &  Stream )

static

Read the "IDENTIFICATION_BLOCK_ID" block, do some basic enforcement on the "epoch" encoded in the bitcode, and return the producer name if any.

Definition at line 180 of file BitcodeReader.cpp.

readIdentificationCode()

static Expected<std::string> readIdentificationCode ( BitstreamCursor &  Stream )

static

Definition at line 228 of file BitcodeReader.cpp.

References llvm::BitstreamCursor::AtEndOfStream().

Referenced by llvm::getBitcodeProducerString().

readModuleTriple()

static Expected<std::string> readModuleTriple ( BitstreamCursor &  Stream )

static

Definition at line 338 of file BitcodeReader.cpp.

readTriple()

static Expected<std::string> readTriple ( BitstreamCursor &  Stream )

static

Definition at line 383 of file BitcodeReader.cpp.

References llvm::BitstreamCursor::advance(), and llvm::Expected< T >::takeError().

Referenced by llvm::getBitcodeTargetTriple().

setSpecialRefs()

static void setSpecialRefs ( std::vector< ValueInfo > &  Refs, unsigned  ROCnt, unsigned  WOCnt  )

static

Definition at line 7080 of file BitcodeReader.cpp.

References assert().

stripTBAA()

static void stripTBAA ( Module *  M )

static

Definition at line 169 of file BitcodeReader.cpp.

References F, I, llvm::instructions(), and M.

upgradeDLLImportExportLinkage()

static void upgradeDLLImportExportLinkage ( GlobalValue *  GV, unsigned  Val  )

static

Definition at line 1312 of file BitcodeReader.cpp.

References llvm::GlobalValue::hasLocalLinkage(), and llvm::GlobalValue::setDLLStorageClass().

upgradeOldMemoryAttribute()

static bool upgradeOldMemoryAttribute ( MemoryEffects &  ME, uint64_t  EncodedKind  )

static

Definition at line 2085 of file BitcodeReader.cpp.

References llvm::bitc::ATTR_KIND_ARGMEMONLY, llvm::bitc::ATTR_KIND_INACCESSIBLEMEM_ONLY, llvm::bitc::ATTR_KIND_INACCESSIBLEMEM_OR_ARGMEMONLY, llvm::bitc::ATTR_KIND_READ_NONE, llvm::bitc::ATTR_KIND_READ_ONLY, llvm::bitc::ATTR_KIND_WRITEONLY, and none.

Variable Documentation

ExpandConstantExprs

cl::opt<bool> ExpandConstantExprs("expand-constant-exprs", cl::Hidden, cl::desc( "Expand constant expressions to instructions for testing purposes"))

static

Referenced by isConstExprSupported().

PrintSummaryGUIDs

cl::opt<bool> PrintSummaryGUIDs("print-summary-global-ids", cl::init(false), cl::Hidden, cl::desc( "Print the global id for each value when reading the module summary"))

static