BitcodeWriter.cpp File Reference (original) (raw)

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Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Macros
#define	HANDLE_MDNODE_LEAF(CLASS)
#define	HANDLE_MDNODE_LEAF(CLASS)
#define	HANDLE_MDNODE_LEAF(CLASS)

Enumerations
enum	StringEncoding { SE_Char6, SE_Fixed7, SE_Fixed8 }
enum	MetadataAbbrev : unsigned { LastPlusOne }

Functions
static unsigned	getEncodedCastOpcode (unsigned Opcode)
static unsigned	getEncodedUnaryOpcode (unsigned Opcode)
static unsigned	getEncodedBinaryOpcode (unsigned Opcode)
static unsigned	getEncodedRMWOperation (AtomicRMWInst::BinOp Op)
static unsigned	getEncodedOrdering (AtomicOrdering Ordering)
static void	writeStringRecord (BitstreamWriter &Stream, unsigned Code, StringRef Str, unsigned AbbrevToUse)
static uint64_t	getAttrKindEncoding (Attribute::AttrKind Kind)
static void	emitSignedInt64 (SmallVectorImpl< uint64_t > &Vals, uint64_t V)
static void	emitWideAPInt (SmallVectorImpl< uint64_t > &Vals, const APInt &A)
static void	emitConstantRange (SmallVectorImpl< uint64_t > &Record, const ConstantRange &CR, bool EmitBitWidth)
static unsigned	getEncodedLinkage (const GlobalValue::LinkageTypes Linkage)
static unsigned	getEncodedLinkage (const GlobalValue &GV)
static uint64_t	getEncodedFFlags (FunctionSummary::FFlags Flags)
static uint64_t	getEncodedGVSummaryFlags (GlobalValueSummary::GVFlags Flags, bool ImportAsDecl=false)
static uint64_t	getEncodedGVarFlags (GlobalVarSummary::GVarFlags Flags)
static uint64_t	getEncodedHotnessCallEdgeInfo (const CalleeInfo &CI)
static uint64_t	getEncodedRelBFCallEdgeInfo (const CalleeInfo &CI)
static unsigned	getEncodedVisibility (const GlobalValue &GV)
static unsigned	getEncodedDLLStorageClass (const GlobalValue &GV)
static unsigned	getEncodedThreadLocalMode (const GlobalValue &GV)
static unsigned	getEncodedComdatSelectionKind (const Comdat &C)
static unsigned	getEncodedUnnamedAddr (const GlobalValue &GV)
static StringEncoding	getStringEncoding (StringRef Str)
	Determine the encoding to use for the given string name and length.
static unsigned	serializeSanitizerMetadata (const GlobalValue::SanitizerMetadata &Meta)
static uint64_t	getOptimizationFlags (const Value *V)
template
static void	writeFunctionTypeMetadataRecords (BitstreamWriter &Stream, FunctionSummary *FS, Fn GetValueID)
	Write the function type metadata related records that need to appear before a function summary entry (whether per-module or combined).
static void	getReferencedTypeIds (FunctionSummary *FS, std::set< GlobalValue::GUID > &ReferencedTypeIds)
	Collect type IDs from type tests used by function.
static void	writeWholeProgramDevirtResolutionByArg (SmallVector< uint64_t, 64 > &NameVals, const std::vector< uint64_t > &args, const WholeProgramDevirtResolution::ByArg &ByArg)
static void	writeWholeProgramDevirtResolution (SmallVector< uint64_t, 64 > &NameVals, StringTableBuilder &StrtabBuilder, uint64_t Id, const WholeProgramDevirtResolution &Wpd)
static void	writeTypeIdSummaryRecord (SmallVector< uint64_t, 64 > &NameVals, StringTableBuilder &StrtabBuilder, StringRef Id, const TypeIdSummary &Summary)
static void	writeTypeIdCompatibleVtableSummaryRecord (SmallVector< uint64_t, 64 > &NameVals, StringTableBuilder &StrtabBuilder, StringRef Id, const TypeIdCompatibleVtableInfo &Summary, ValueEnumerator &VE)
static void	collectMemProfCallStacks (FunctionSummary *FS, std::function< LinearFrameId(unsigned)> GetStackIndex, MapVector< CallStackId, llvm::SmallVector< LinearFrameId > > &CallStacks)
static DenseMap< CallStackId, LinearCallStackId >	writeMemoryProfileRadixTree (MapVector< CallStackId, llvm::SmallVector< LinearFrameId > > &&CallStacks, BitstreamWriter &Stream, unsigned RadixAbbrev)
static void	writeFunctionHeapProfileRecords (BitstreamWriter &Stream, FunctionSummary *FS, unsigned CallsiteAbbrev, unsigned AllocAbbrev, unsigned ContextIdAbbvId, bool PerModule, std::function< unsigned(const ValueInfo &VI)> GetValueID, std::function< unsigned(unsigned)> GetStackIndex, bool WriteContextSizeInfoIndex, DenseMap< CallStackId, LinearCallStackId > &CallStackPos, CallStackId &CallStackCount)
static void	writeIdentificationBlock (BitstreamWriter &Stream)
	Create the "IDENTIFICATION_BLOCK_ID" containing a single string with the current llvm version, and a record for the epoch number.
static void	writeInt32ToBuffer (uint32_t Value, SmallVectorImpl< char > &Buffer, uint32_t &Position)
static void	emitDarwinBCHeaderAndTrailer (SmallVectorImpl< char > &Buffer, const Triple &TT)
	If generating a bc file on darwin, we have to emit a header and trailer to make it compatible with the system archiver.
static void	writeBitcodeHeader (BitstreamWriter &Stream)
	Helper to write the header common to all bitcode files.
static const char *	getSectionNameForBitcode (const Triple &T)
static const char *	getSectionNameForCommandline (const Triple &T)

Variables
static cl::opt< unsigned >	IndexThreshold ("bitcode-mdindex-threshold", cl::Hidden, cl::init(25), cl::desc("Number of metadatas above which we emit an index " "to enable lazy-loading"))
static cl::opt< uint32_t >	FlushThreshold ("bitcode-flush-threshold", cl::Hidden, cl::init(512), cl::desc("The threshold (unit M) for flushing LLVM bitcode."))
static cl::opt< bool >	WriteRelBFToSummary ("write-relbf-to-summary", cl::Hidden, cl::init(false), cl::desc("Write relative block frequency to function summary "))
static cl::opt< bool >	CombinedIndexMemProfContext ("combined-index-memprof-context", cl::Hidden, cl::init(true), cl::desc(""))
static cl::opt< bool >	PreserveBitcodeUseListOrder ("preserve-bc-uselistorder", cl::Hidden, cl::init(true), cl::desc("Preserve use-list order when writing LLVM bitcode."))

◆ HANDLE_MDNODE_LEAF [1/3]

#define HANDLE_MDNODE_LEAF	(	CLASS	)

◆ HANDLE_MDNODE_LEAF [2/3]

#define HANDLE_MDNODE_LEAF	(	CLASS	)

◆ HANDLE_MDNODE_LEAF [3/3]

#define HANDLE_MDNODE_LEAF	(	CLASS	)

Value:

case Metadata::CLASS##Kind: \

if (MDAbbrevs) \

(*MDAbbrevs)[MetadataAbbrev::CLASS##AbbrevID]); \

else \

continue;

LLVM_ABI Error write(MCStreamer &Out, ArrayRef< std::string > Inputs, OnCuIndexOverflow OverflowOptValue, Dwarf64StrOffsetsPromotion StrOffsetsOptValue)

decltype(auto) cast(const From &Val)

cast - Return the argument parameter cast to the specified type.

Definition at line 2520 of file BitcodeWriter.cpp.

◆ MetadataAbbrev

◆ StringEncoding

◆ collectMemProfCallStacks()

◆ emitConstantRange()

◆ emitDarwinBCHeaderAndTrailer()

If generating a bc file on darwin, we have to emit a header and trailer to make it compatible with the system archiver.

To do this we emit the following header, and then emit a trailer that pads the file out to be a multiple of 16 bytes.

struct bc_header { uint32_t Magic; // 0x0B17C0DE uint32_t Version; // Version, currently always 0. uint32_t BitcodeOffset; // Offset to traditional bitcode file. uint32_t BitcodeSize; // Size of traditional bitcode file. uint32_t CPUType; // CPU specifier. ... potentially more later ... };

Definition at line 5436 of file BitcodeWriter.cpp.

References llvm::Triple::arm, assert(), llvm::BWH_HeaderSize, llvm::Triple::ppc, llvm::Triple::ppc64, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::Triple::thumb, writeInt32ToBuffer(), llvm::Triple::x86, and llvm::Triple::x86_64.