llvm::CalleeInfo Struct Reference

Class to accumulate and hold information about a callee. More...

#include "llvm/IR/ModuleSummaryIndex.h"

Collaboration diagram for llvm::CalleeInfo:

Public Types
enum	HotnessType : uint8_t {   HotnessType::Unknown = 0, HotnessType::Cold = 1, HotnessType::None = 2, HotnessType::Hot = 3,   HotnessType::Critical = 4 }

Public Member Functions
	CalleeInfo ()
	CalleeInfo (HotnessType Hotness, uint64_t RelBF)
void	updateHotness (const HotnessType OtherHotness)
HotnessType	getHotness () const
void	updateRelBlockFreq (uint64_t BlockFreq, uint64_t EntryFreq)
	Update RelBlockFreq from BlockFreq and EntryFreq. More...

Public Attributes
uint32_t	Hotness: 3
uint32_t	RelBlockFreq: 29
	The value stored in RelBlockFreq has to be interpreted as the digits of a scaled number with a scale of -ScaleShift. More...

Static Public Attributes
static constexpr int32_t	ScaleShift = 8
static constexpr uint64_t	MaxRelBlockFreq = (1 << 29) - 1

Detailed Description

Class to accumulate and hold information about a callee.

Definition at line 53 of file ModuleSummaryIndex.h.

Member Enumeration Documentation

HotnessType

enum llvm::CalleeInfo::HotnessType : uint8_t

strong

Enumerator
Unknown
Cold
None
Hot
Critical

Definition at line 54 of file ModuleSummaryIndex.h.

Constructor & Destructor Documentation

CalleeInfo() [1/2]

llvm::CalleeInfo::CalleeInfo ( )

inline

Definition at line 72 of file ModuleSummaryIndex.h.

CalleeInfo() [2/2]

llvm::CalleeInfo::CalleeInfo ( HotnessType  Hotness, uint64_t  RelBF  )

inlineexplicit

Definition at line 74 of file ModuleSummaryIndex.h.

Member Function Documentation

getHotness()

HotnessType llvm::CalleeInfo::getHotness ( ) const

inline

Definition at line 81 of file ModuleSummaryIndex.h.

updateHotness()

void llvm::CalleeInfo::updateHotness ( const HotnessType  OtherHotness )

inline

Definition at line 77 of file ModuleSummaryIndex.h.

References llvm::max().

updateRelBlockFreq()

void llvm::CalleeInfo::updateRelBlockFreq ( uint64_t  BlockFreq, uint64_t  EntryFreq  )

inline

Update RelBlockFreq from BlockFreq and EntryFreq.

BlockFreq is divided by EntryFreq and added to RelBlockFreq. To represent fractional values, the result is represented as a fixed point number with scale of -ScaleShift.

Definition at line 88 of file ModuleSummaryIndex.h.

Member Data Documentation

Hotness

uint32_t llvm::CalleeInfo::Hotness

Definition at line 64 of file ModuleSummaryIndex.h.

MaxRelBlockFreq

constexpr uint64_t llvm::CalleeInfo::MaxRelBlockFreq = (1 << 29) - 1

static

Definition at line 70 of file ModuleSummaryIndex.h.

RelBlockFreq

uint32_t llvm::CalleeInfo::RelBlockFreq

The value stored in RelBlockFreq has to be interpreted as the digits of a scaled number with a scale of -ScaleShift.

Definition at line 68 of file ModuleSummaryIndex.h.

ScaleShift

constexpr int32_t llvm::CalleeInfo::ScaleShift = 8

static

Definition at line 69 of file ModuleSummaryIndex.h.

Referenced by llvm::computeSyntheticCounts().

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The documentation for this struct was generated from the following file:

• include/llvm/IR/ModuleSummaryIndex.h