llvm::MCFragment Class Reference

#include "llvm/MC/MCFragment.h"

Inheritance diagram for llvm::MCFragment:

Collaboration diagram for llvm::MCFragment:

Public Types
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
	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...

Protected Member Functions
	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
bool	HasInstructions

Friends
class	MCAsmLayout

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 >

Detailed Description

Definition at line 31 of file MCFragment.h.

Member Enumeration Documentation

FragmentType

enum llvm::MCFragment::FragmentType : uint8_t

Enumerator
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

Definition at line 35 of file MCFragment.h.

Constructor & Destructor Documentation

MCFragment() [1/3]

MCFragment::MCFragment ( FragmentType  Kind, bool  HasInstructions, MCSection *  Parent = nullptr  )

protected

Definition at line 238 of file MCFragment.cpp.

References llvm::MCSection::getFragmentList(), isDummy(), and llvm::iplist_impl< IntrusiveListT, TraitsT >::push_back().

~MCFragment()

MCFragment::~MCFragment ( )

protecteddefault

Referenced by llvm::computeBundlePadding().

MCFragment() [2/3]

llvm::MCFragment::MCFragment ( )

delete

MCFragment() [3/3]

llvm::MCFragment::MCFragment ( const MCFragment &  )

delete

Member Function Documentation

destroy()

void MCFragment::destroy

(

)

Destroys the current fragment.

This must be used instead of delete as MCFragment is non-virtual. This method will dispatch to the appropriate subclass.

Definition at line 246 of file MCFragment.cpp.

References FT_Align, FT_CompactEncodedInst, FT_CVDefRange, FT_CVInlineLines, FT_Data, FT_Dummy, FT_Dwarf, FT_DwarfFrame, FT_Fill, FT_LEB, FT_Org, FT_Padding, FT_Relaxable, and FT_SymbolId.

Referenced by llvm::computeBundlePadding().

dump()

LLVM_DUMP_METHOD void MCFragment::dump

(

)

const

Definition at line 313 of file MCFragment.cpp.

References llvm::MCInst::dump_pretty(), llvm::errs(), llvm::MCEncodedFragmentWithFixups< ContentsSize, FixupsSize >::fixup_begin(), llvm::MCEncodedFragmentWithFixups< ContentsSize, FixupsSize >::fixup_end(), FT_Align, FT_CompactEncodedInst, FT_CVDefRange, FT_CVInlineLines, FT_Data, FT_Dummy, FT_Dwarf, FT_DwarfFrame, FT_Fill, FT_LEB, FT_Org, FT_Padding, FT_Relaxable, FT_SymbolId, llvm::MCDwarfLineAddrFragment::getAddrDelta(), llvm::MCDwarfCallFrameFragment::getAddrDelta(), llvm::MCAlignFragment::getAlignment(), llvm::MCEncodedFragmentWithContents< ContentsSize >::getContents(), llvm::MCRelaxableFragment::getInst(), llvm::MCPaddingFragment::getInst(), llvm::MCPaddingFragment::getInstSize(), getKind(), llvm::MCDwarfLineAddrFragment::getLineDelta(), llvm::MCAlignFragment::getMaxBytesToEmit(), llvm::MCFillFragment::getNumValues(), llvm::MCOrgFragment::getOffset(), llvm::MCPaddingFragment::getPaddingPoliciesMask(), llvm::MCPaddingFragment::getSize(), llvm::MCSymbolIdFragment::getSymbol(), llvm::MCAlignFragment::getValue(), llvm::MCFillFragment::getValue(), llvm::MCOrgFragment::getValue(), llvm::MCLEBFragment::getValue(), llvm::MCAlignFragment::getValueSize(), llvm::MCFillFragment::getValueSize(), llvm::MCAlignFragment::hasEmitNops(), hasInstructions(), llvm::hexdigit(), llvm::MCPaddingFragment::isInsertionPoint(), llvm::MCLEBFragment::isSigned(), and llvm::SmallVectorBase::size().

Referenced by isDummy().

getAtom()

const MCSymbol* llvm::MCFragment::getAtom ( ) const

inline

Definition at line 102 of file MCFragment.h.

Referenced by llvm::MCAssembler::getAtom(), and llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl().

getKind()

FragmentType llvm::MCFragment::getKind ( ) const

inline

Definition at line 97 of file MCFragment.h.

References Kind.

Referenced by llvm::MCDummyFragment::classof(), llvm::MCEncodedFragment::classof(), llvm::MCEncodedFragmentWithFixups< 8, 1 >::classof(), llvm::MCDataFragment::classof(), llvm::MCCompactEncodedInstFragment::classof(), llvm::MCRelaxableFragment::classof(), llvm::MCAlignFragment::classof(), llvm::MCPaddingFragment::classof(), llvm::MCFillFragment::classof(), llvm::MCOrgFragment::classof(), llvm::MCLEBFragment::classof(), llvm::MCDwarfLineAddrFragment::classof(), llvm::MCDwarfCallFrameFragment::classof(), llvm::MCSymbolIdFragment::classof(), llvm::MCCVInlineLineTableFragment::classof(), llvm::MCCVDefRangeFragment::classof(), llvm::MCAssembler::computeFragmentSize(), dump(), llvm::MCCodePadder::handleBasicBlockStart(), llvm::MCCodePadder::handleInstructionBegin(), and isInSymtab().

getLayoutOrder()

unsigned llvm::MCFragment::getLayoutOrder ( ) const

inline

Definition at line 105 of file MCFragment.h.

Referenced by llvm::MCAsmLayout::MCAsmLayout().

getParent()

MCSection* llvm::MCFragment::getParent ( ) const

inline

Definition at line 99 of file MCFragment.h.

Referenced by canUseLocalRelocation(), encodeBase64StringEntry(), getARMFixupKindMachOInfo(), llvm::MCAssembler::getAtom(), getFixupKindLog2Size(), getFixupOffset(), llvm::MachObjectWriter::getFragmentAddress(), llvm::MCCodePaddingPolicy::getNextFragmentOffset(), llvm::RISCVMCExpr::getPCRelHiFixup(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolValue(), llvm::MCAsmLayout::invalidateFragmentsFrom(), llvm::MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), isWeak(), llvm::MCAsmLayout::layoutFragment(), llvm::MCAsmLayout::MCAsmLayout(), and llvm::MCCodePadder::relaxFragment().

hasInstructions()

bool llvm::MCFragment::hasInstructions ( ) const

inline

Does this fragment have instructions emitted into it? By default this is false, but specific fragment types may set it to true.

Definition at line 110 of file MCFragment.h.

References HasInstructions.

Referenced by CanReuseDataFragment(), dump(), isInSymtab(), llvm::MCAsmLayout::layoutFragment(), and llvm::MCAssembler::writeFragmentPadding().

isDummy()

bool llvm::MCFragment::isDummy ( ) const

inline

Return true if given frgment has FT_Dummy type.

Definition at line 113 of file MCFragment.h.

References dump(), and FT_Dummy.

Referenced by MCFragment().

operator=()

MCFragment& llvm::MCFragment::operator= ( const MCFragment &  )

delete

setAtom()

void llvm::MCFragment::setAtom ( const MCSymbol *  Value )

inline

Definition at line 103 of file MCFragment.h.

setLayoutOrder()

void llvm::MCFragment::setLayoutOrder ( unsigned  Value )

inline

Definition at line 106 of file MCFragment.h.

setParent()

void llvm::MCFragment::setParent ( MCSection *  Value )

inline

Definition at line 100 of file MCFragment.h.

Referenced by llvm::MCObjectStreamer::flushPendingLabels(), llvm::MCSection::getSubsectionInsertionPoint(), and llvm::MCObjectStreamer::insert().

Friends And Related Function Documentation

MCAsmLayout

friend class MCAsmLayout

friend

Definition at line 32 of file MCFragment.h.

Member Data Documentation

HasInstructions

bool llvm::MCFragment::HasInstructions

protected

Definition at line 56 of file MCFragment.h.

Referenced by hasInstructions(), and llvm::MCEncodedFragment::setHasInstructions().

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

• include/llvm/MC/MCFragment.h
• lib/MC/MCFragment.cpp