LLVM  17.0.0git
Classes | Typedefs | Enumerations | Functions
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...
 
MDNodebuildCallstackMetadata (ArrayRef< uint64_t > CallStack, LLVMContext &Ctx)
 Build callstack metadata from the provided list of call stack ids. More...
 
MDNodegetMIBStackNode (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< MemProfSchemareadMemProfSchema (const unsigned char *&Buffer)
 

Typedef Documentation

◆ CallStackMap

Definition at line 36 of file RawMemProfReader.h.

◆ FrameId

Definition at line 138 of file MemProf.h.

◆ MemProfSchema

Definition at line 27 of file MemProf.h.

Enumeration Type Documentation

◆ Meta

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().