llvm::BlockFrequencyInfoImplBase::Weight Struct Reference

Unscaled probability weight. More...

#include "llvm/Analysis/BlockFrequencyInfoImpl.h"

Collaboration diagram for llvm::BlockFrequencyInfoImplBase::Weight:

Public Types
enum	DistType { Local, Exit, Backedge }

Public Member Functions
	Weight ()=default
	Weight (DistType Type, BlockNode TargetNode, uint64_t Amount)

Public Attributes
DistType	Type = Local
BlockNode	TargetNode
uint64_t	Amount = 0

Detailed Description

Unscaled probability weight.

Probability weight for an edge in the graph (including the successor/target node).

All edges in the original function are 32-bit. However, exit edges from loop packages are taken from 64-bit exit masses, so we need 64-bits of space in general.

In addition to the raw weight amount, Weight stores the type of the edge in the current context (i.e., the context of the loop being processed). Is this a local edge within the loop, an exit from the loop, or a backedge to the loop header?

Definition at line 361 of file BlockFrequencyInfoImpl.h.

Member Enumeration Documentation

DistType

enum llvm::BlockFrequencyInfoImplBase::Weight::DistType

Enumerator
Local
Exit
Backedge

Definition at line 362 of file BlockFrequencyInfoImpl.h.

Constructor & Destructor Documentation

Weight() [1/2]

llvm::BlockFrequencyInfoImplBase::Weight::Weight ( )

default

Weight() [2/2]

llvm::BlockFrequencyInfoImplBase::Weight::Weight ( DistType  Type, BlockNode  TargetNode, uint64_t  Amount  )

inline

Definition at line 368 of file BlockFrequencyInfoImpl.h.

Member Data Documentation

Amount

uint64_t llvm::BlockFrequencyInfoImplBase::Weight::Amount = 0

Definition at line 365 of file BlockFrequencyInfoImpl.h.

Referenced by llvm::BlockFrequencyInfoImplBase::adjustLoopHeaderMass(), llvm::BlockFrequencyInfoImplBase::distributeIrrLoopHeaderMass(), and llvm::BlockFrequencyInfoImplBase::distributeMass().

TargetNode

BlockNode llvm::BlockFrequencyInfoImplBase::Weight::TargetNode

Definition at line 364 of file BlockFrequencyInfoImpl.h.

Referenced by llvm::BlockFrequencyInfoImplBase::adjustLoopHeaderMass(), llvm::BlockFrequencyInfoImplBase::distributeIrrLoopHeaderMass(), and llvm::BlockFrequencyInfoImplBase::distributeMass().

Type

DistType llvm::BlockFrequencyInfoImplBase::Weight::Type = Local

Definition at line 363 of file BlockFrequencyInfoImpl.h.

Referenced by llvm::BlockFrequencyInfoImplBase::adjustLoopHeaderMass(), llvm::BlockFrequencyInfoImplBase::distributeIrrLoopHeaderMass(), and llvm::BlockFrequencyInfoImplBase::distributeMass().

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

• include/llvm/Analysis/BlockFrequencyInfoImpl.h