Fragment for adding required padding. More...

#include "llvm/MC/MCFragment.h"

Inheritance diagram for llvm::MCPaddingFragment:

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Collaboration diagram for llvm::MCPaddingFragment:

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Public Types
enum	MCPaddingFragmentKind { FirstTargetPerfNopFragmentKind = 8, MaxTargetPerfNopFragmentKind = 63 }

Public Types inherited from llvm::MCFragment
enum	FragmentType : uint8_t { FT_Align, FT_Data, FT_CompactEncodedInst, FT_Fill, FT_Relaxable, FT_Org, FT_Dwarf, FT_DwarfFrame, FT_LEB, FT_Padding, FT_SymbolId, FT_CVInlineLines, FT_CVDefRange, FT_Dummy }

Public Member Functions
	MCPaddingFragment (MCSection *Sec=nullptr)

bool	isInsertionPoint () const

void	setAsInsertionPoint ()

uint64_t	getPaddingPoliciesMask () const

void	setPaddingPoliciesMask (uint64_t Value)

bool	hasPaddingPolicy (uint64_t PolicyMask) const

const MCInst &	getInst () const

size_t	getInstSize () const

void	setInstAndInstSize (const MCInst &Inst, size_t InstSize)

void	setInstAndInstFragment (const MCInst &Inst, MCRelaxableFragment *InstFragment)

uint64_t	getSize () const

void	setSize (uint64_t Value)

bool	isInstructionInitialized () const

Public Member Functions inherited from llvm::MCFragment
	MCFragment ()=delete

	MCFragment (const MCFragment &)=delete

MCFragment &	operator= (const MCFragment &)=delete

void	destroy ()
	Destroys the current fragment. More...

FragmentType	getKind () const

MCSection *	getParent () const

void	setParent (MCSection *Value)

const MCSymbol *	getAtom () const

void	setAtom (const MCSymbol *Value)

unsigned	getLayoutOrder () const

void	setLayoutOrder (unsigned Value)

bool	hasInstructions () const
	Does this fragment have instructions emitted into it? By default this is false, but specific fragment types may set it to true. More...

bool	isDummy () const
	Return true if given frgment has FT_Dummy type. More...

void	dump () const

Public Member Functions inherited from llvm::ilist_node_with_parent< MCFragment, MCSection >
MCFragment *	getPrevNode ()

const MCFragment *	getPrevNode () const
	Get the previous node, or `nullptr` for the list head. More...

MCFragment *	getNextNode ()
	Get the next node, or `nullptr` for the list tail. More...

const MCFragment *	getNextNode () const
	Get the next node, or `nullptr` for the list tail. More...

Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< MCFragment, Options... >::type >
self_iterator	getIterator ()

const_self_iterator	getIterator () const

reverse_self_iterator	getReverseIterator ()

const_reverse_self_iterator	getReverseIterator () const

bool	isSentinel () const
	Check whether this is the sentinel node. More...

Static Public Member Functions
static bool	classof (const MCFragment *F)

Static Public Attributes
static const uint64_t	PFK_None = UINT64_C(0)

Additional Inherited Members
Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< MCFragment, Options... >::type >
using	self_iterator = ilist_iterator< ilist_detail::compute_node_options< MCFragment, Options... >::type, false, false >

using	const_self_iterator = ilist_iterator< ilist_detail::compute_node_options< MCFragment, Options... >::type, false, true >

using	reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< MCFragment, Options... >::type, true, false >

using	const_reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< MCFragment, Options... >::type, true, true >

Protected Member Functions inherited from llvm::MCFragment
	MCFragment (FragmentType Kind, bool HasInstructions, MCSection *Parent=nullptr)

	~MCFragment ()

Protected Member Functions inherited from llvm::ilist_node_with_parent< MCFragment, MCSection >
	ilist_node_with_parent ()=default

Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< MCFragment, Options... >::type >
	ilist_node_impl ()=default

Protected Attributes inherited from llvm::MCFragment
bool	HasInstructions

Detailed Description

Fragment for adding required padding.

This fragment is always inserted before an instruction, and holds that instruction as context information (as well as a mask of kinds) for determining the padding size.

Definition at line 341 of file MCFragment.h.

Member Enumeration Documentation

◆ MCPaddingFragmentKind

enum llvm::MCPaddingFragment::MCPaddingFragmentKind

Enumerator
FirstTargetPerfNopFragmentKind
MaxTargetPerfNopFragmentKind	Limit range of target MCPerfNopFragment kinds to fit in uint64_t.

Definition at line 371 of file MCFragment.h.

Constructor & Destructor Documentation

◆ MCPaddingFragment()

llvm::MCPaddingFragment::MCPaddingFragment ( MCSection * Sec = nullptr )

inline

Definition at line 380 of file MCFragment.h.

Member Function Documentation

◆ classof()

static bool llvm::MCPaddingFragment::classof ( const MCFragment * F )

inlinestatic

Definition at line 423 of file MCFragment.h.

References llvm::MCFragment::FT_Padding, and llvm::MCFragment::getKind().

◆ getInst()

const MCInst& llvm::MCPaddingFragment::getInst ( ) const

inline

Definition at line 394 of file MCFragment.h.

References assert().

Referenced by llvm::MCFragment::dump().

◆ getInstSize()

size_t llvm::MCPaddingFragment::getInstSize ( ) const

inline

Definition at line 398 of file MCFragment.h.

References assert().

Referenced by llvm::MCFragment::dump(), and llvm::MCCodePaddingPolicy::getFragmentInstByte().

◆ getPaddingPoliciesMask()

uint64_t llvm::MCPaddingFragment::getPaddingPoliciesMask ( ) const

inline

Definition at line 387 of file MCFragment.h.

Referenced by llvm::MCFragment::dump(), llvm::MCCodePadder::handleBasicBlockStart(), and llvm::MCCodePadder::handleInstructionBegin().

◆ getSize()

uint64_t llvm::MCPaddingFragment::getSize ( ) const

inline

Definition at line 419 of file MCFragment.h.

References Size.

Referenced by llvm::MCFragment::dump(), llvm::MCAssembler::Finish(), and llvm::MCCodePadder::relaxFragment().

◆ hasPaddingPolicy()

bool llvm::MCPaddingFragment::hasPaddingPolicy ( uint64_t PolicyMask ) const

inline

Definition at line 389 of file MCFragment.h.

References assert(), and llvm::isPowerOf2_64().

Referenced by llvm::MCCodePaddingPolicy::computeFirstWindowPenaltyWeight(), llvm::MCCodePaddingPolicy::computeRangePenaltyWeight(), and llvm::MCCodePadder::handleInstructionEnd().

◆ isInsertionPoint()

bool llvm::MCPaddingFragment::isInsertionPoint ( ) const

inline

Definition at line 385 of file MCFragment.h.

Referenced by llvm::MCFragment::dump(), llvm::MCCodePadder::handleInstructionEnd(), and llvm::MCCodePadder::relaxFragment().

◆ isInstructionInitialized()

bool llvm::MCPaddingFragment::isInstructionInitialized ( ) const

inline

Definition at line 421 of file MCFragment.h.

◆ setAsInsertionPoint()

void llvm::MCPaddingFragment::setAsInsertionPoint ( )

inline

Definition at line 386 of file MCFragment.h.

Referenced by llvm::MCCodePadder::handleBasicBlockStart(), and llvm::MCCodePadder::handleInstructionBegin().

◆ setInstAndInstFragment()

void llvm::MCPaddingFragment::setInstAndInstFragment	(	const MCInst &	Inst,
		MCRelaxableFragment *	InstFragment
	)

inline

Definition at line 412 of file MCFragment.h.

Referenced by llvm::MCCodePadder::handleInstructionEnd().

◆ setInstAndInstSize()

void llvm::MCPaddingFragment::setInstAndInstSize	(	const MCInst &	Inst,
		size_t	InstSize
	)

inline

Definition at line 406 of file MCFragment.h.

Referenced by llvm::MCCodePadder::handleInstructionEnd().

◆ setPaddingPoliciesMask()

void llvm::MCPaddingFragment::setPaddingPoliciesMask ( uint64_t Value )

inline

Definition at line 388 of file MCFragment.h.

Referenced by llvm::MCCodePadder::handleBasicBlockStart(), and llvm::MCCodePadder::handleInstructionBegin().

◆ setSize()

void llvm::MCPaddingFragment::setSize ( uint64_t Value )

inline

Definition at line 420 of file MCFragment.h.

Referenced by llvm::MCCodePadder::relaxFragment().

Member Data Documentation

◆ PFK_None

const uint64_t llvm::MCPaddingFragment::PFK_None = UINT64_C(0)

static

Definition at line 369 of file MCFragment.h.

Referenced by llvm::MCCodePadder::handleBasicBlockStart(), llvm::MCCodePadder::handleInstructionBegin(), and llvm::MCCodePadder::handleInstructionEnd().

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

include/llvm/MC/MCFragment.h

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ MCPaddingFragmentKind

Constructor & Destructor Documentation

◆ MCPaddingFragment()

Member Function Documentation

◆ classof()

◆ getInst()

◆ getInstSize()

◆ getPaddingPoliciesMask()

◆ getSize()

◆ hasPaddingPolicy()

◆ isInsertionPoint()

◆ isInstructionInitialized()

◆ setAsInsertionPoint()

◆ setInstAndInstFragment()

◆ setInstAndInstSize()

◆ setPaddingPoliciesMask()

◆ setSize()

Member Data Documentation

◆ PFK_None