llvm::xray::Profile Class Reference

Profile instances are thread-compatible. More...

#include "llvm/XRay/Profile.h"

Classes
struct	Block
struct	Data

Public Types
using	ThreadID = uint64_t
using	PathID = unsigned
using	FuncID = int32_t
using	const_iterator = BlockList::const_iterator

Public Member Functions
Expected< std::vector< FuncID > >	expandPath (PathID P) const
	Provides a sequence of function IDs from a previously interned PathID. More...
PathID	internPath (ArrayRef< FuncID > P)
	The stack represented in |P| must be in stack order (leaf to root). More...
Error	addBlock (Block &&B)
	Appends a fully-formed Block instance into the Profile. More...
	Profile ()=default
	~Profile ()=default
	Profile (Profile &&O) noexcept
Profile &	operator= (Profile &&O) noexcept
	Profile (const Profile &)
Profile &	operator= (const Profile &)
const_iterator	begin () const
const_iterator	end () const
bool	empty () const

Friends
void	swap (Profile &L, Profile &R)

Detailed Description

Profile instances are thread-compatible.

Definition at line 52 of file Profile.h.

Member Typedef Documentation

const_iterator

using llvm::xray::Profile::const_iterator = BlockList::const_iterator

Definition at line 141 of file Profile.h.

FuncID

using llvm::xray::Profile::FuncID = int32_t

Definition at line 56 of file Profile.h.

PathID

using llvm::xray::Profile::PathID = unsigned

Definition at line 55 of file Profile.h.

ThreadID

using llvm::xray::Profile::ThreadID = uint64_t

Definition at line 54 of file Profile.h.

Constructor & Destructor Documentation

Profile() [1/3]

llvm::xray::Profile::Profile ( )

default

Referenced by operator=().

~Profile()

llvm::xray::Profile::~Profile ( )

default

Profile() [2/3]

llvm::xray::Profile::Profile ( Profile &&  O )

inlinenoexcept

Definition at line 89 of file Profile.h.

Profile() [3/3]

llvm::xray::Profile::Profile

(

const Profile &

O

)

Definition at line 26 of file Profile.cpp.

References B, llvm::cantFail(), internPath(), llvm::xray::Profile::Block::PathData, and llvm::xray::Profile::Block::Thread.

Member Function Documentation

addBlock()

Error llvm::xray::Profile::addBlock

(

Block &&

B

)

Appends a fully-formed Block instance into the Profile.

Returns an error condition in the following cases:

• The PathData component of the Block is empty

Definition at line 122 of file Profile.cpp.

References B, llvm::make_error_code(), and llvm::Error::success().

Referenced by llvm::xray::mergeProfilesByStack(), llvm::xray::mergeProfilesByThread(), and llvm::xray::profileFromTrace().

begin()

const_iterator llvm::xray::Profile::begin ( ) const

inline

Definition at line 142 of file Profile.h.

empty()

bool llvm::xray::Profile::empty ( ) const

inline

Definition at line 144 of file Profile.h.

end()

const_iterator llvm::xray::Profile::end ( ) const

inline

Definition at line 143 of file Profile.h.

expandPath()

Expected< std::vector< Profile::FuncID > > llvm::xray::Profile::expandPath

(

PathID

P

)

const

Provides a sequence of function IDs from a previously interned PathID.

Returns an error if |P| had not been interned before into the Profile.

Definition at line 132 of file Profile.cpp.

References llvm::make_error_code().

internPath()

Profile::PathID llvm::xray::Profile::internPath

(

ArrayRef< FuncID >

P

)

The stack represented in |P| must be in stack order (leaf to root).

This will always return the same PathID for |P| that has the same sequence.

Definition at line 144 of file Profile.cpp.

References llvm::ArrayRef< T >::empty(), llvm::find_if(), N, and llvm::reverse().

Referenced by llvm::xray::mergeProfilesByStack(), llvm::xray::mergeProfilesByThread(), Profile(), and llvm::xray::profileFromTrace().

operator=() [1/2]

Profile& llvm::xray::Profile::operator= ( Profile &&  O )

inlinenoexcept

Definition at line 94 of file Profile.h.

References llvm::RISCVFenceField::O, and Profile().

operator=() [2/2]

Profile & llvm::xray::Profile::operator=

(

const Profile &

O

)

Definition at line 38 of file Profile.cpp.

References llvm::RISCVFenceField::O, and P.

Friends And Related Function Documentation

swap

void swap ( Profile &  L, Profile &  R  )

friend

Definition at line 106 of file Profile.h.

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The documentation for this class was generated from the following files:

• include/llvm/XRay/Profile.h
• lib/XRay/Profile.cpp