llvm::memprof Namespace Reference

Classes
struct	AllocationInfo
class	CallStack
	Helper class to iterate through stack ids in both metadata (memprof MIB and callsite) and the corresponding ThinLTO summary data structures (CallsiteInfo and MIBInfo). More...
class	CallStackTrie
	Class to build a trie of call stack contexts for a particular profiled allocation call, along with their associated allocation types. More...
struct	Frame
class	FrameLookupTrait
class	FrameWriterTrait
struct	IndexedAllocationInfo
struct	IndexedMemProfRecord
struct	MemProfRecord
struct	PortableMemInfoBlock
class	RawMemProfReader
class	RecordLookupTrait
class	RecordWriterTrait

Typedefs
using	MemProfSchema = llvm::SmallVector< Meta, static_cast< int >(Meta::Size)>
using	FrameId = uint64_t
using	CallStackMap = llvm::DenseMap< uint64_t, llvm::SmallVector< uint64_t > >

Enumerations
enum	Meta : uint64_t { Meta::Start = 0, Meta::MIBEntryDef, Meta::Size }

Functions
AllocationType	getAllocType (uint64_t MaxAccessCount, uint64_t MinSize, uint64_t MinLifetime)
	Return the allocation type for a given set of memory profile values. More...
MDNode *	buildCallstackMetadata (ArrayRef< uint64_t > CallStack, LLVMContext &Ctx)
	Build callstack metadata from the provided list of call stack ids. More...
MDNode *	getMIBStackNode (const MDNode *MIB)
	Returns the stack node from an MIB metadata node. More...
AllocationType	getMIBAllocType (const MDNode *MIB)
	Returns the allocation type from an MIB metadata node. More...
Expected< MemProfSchema >	readMemProfSchema (const unsigned char *&Buffer)

Typedef Documentation

CallStackMap

using llvm::memprof::CallStackMap = typedef llvm::DenseMap<uint64_t, llvm::SmallVector<uint64_t> >

Definition at line 36 of file RawMemProfReader.h.

FrameId

using llvm::memprof::FrameId = typedef uint64_t

Definition at line 138 of file MemProf.h.

MemProfSchema

using llvm::memprof::MemProfSchema = typedef llvm::SmallVector<Meta, static_cast<int>(Meta::Size)>

Definition at line 27 of file MemProf.h.

Enumeration Type Documentation

Meta

enum llvm::memprof::Meta : uint64_t

strong

Enumerator
Start
MIBEntryDef
Size

Definition at line 19 of file MemProf.h.

Function Documentation

buildCallstackMetadata()

MDNode * llvm::memprof::buildCallstackMetadata	(	ArrayRef< uint64_t >	CallStack,
		LLVMContext &	Ctx
	)

Build callstack metadata from the provided list of call stack ids.

Returns the resulting metadata node.

Definition at line 44 of file MemoryProfileInfo.cpp.

References llvm::ConstantInt::get(), llvm::ValueAsMetadata::get(), llvm::MDNode::get(), and llvm::Type::getInt64Ty().

Referenced by addCallsiteMetadata(), and createMIBNode().

getAllocType()

AllocationType llvm::memprof::getAllocType	(	uint64_t	MaxAccessCount,
		uint64_t	MinSize,
		uint64_t	MinLifetime
	)

Return the allocation type for a given set of memory profile values.

Definition at line 34 of file MemoryProfileInfo.cpp.

References llvm::Cold, MemProfAccessesPerByteColdThreshold, MemProfMinLifetimeColdThreshold, and llvm::NotCold.

Referenced by addCallStack().

getMIBAllocType()

AllocationType llvm::memprof::getMIBAllocType

(

const MDNode *

MIB

)

Returns the allocation type from an MIB metadata node.

Definition at line 61 of file MemoryProfileInfo.cpp.

References assert(), llvm::Cold, llvm::MDNode::getNumOperands(), llvm::MDNode::getOperand(), and llvm::NotCold.

Referenced by llvm::memprof::CallStackTrie::addCallStack(), and computeFunctionSummary().

getMIBStackNode()

MDNode * llvm::memprof::getMIBStackNode

(

const MDNode *

MIB

)

Returns the stack node from an MIB metadata node.

Definition at line 55 of file MemoryProfileInfo.cpp.

References assert(), llvm::MDNode::getNumOperands(), and llvm::MDNode::getOperand().

Referenced by llvm::memprof::CallStackTrie::addCallStack(), computeFunctionSummary(), and propagateMemProfHelper().

readMemProfSchema()

Expected< MemProfSchema > llvm::memprof::readMemProfSchema

(

const unsigned char *&

Buffer

)

Definition at line 84 of file MemProf.cpp.

References I, llvm::malformed, Ptr, Size, and support().

Referenced by llvm::IndexedInstrProfReader::readHeader().