llvm::DIEValueList Class Reference

A list of DIE values. More...

#include "llvm/CodeGen/DIE.h"

Inheritance diagram for llvm::DIEValueList:

Classes
class	const_value_iterator
class	value_iterator

Public Types
using	value_range = iterator_range< value_iterator >
using	const_value_range = iterator_range< const_value_iterator >

Public Member Functions
value_iterator	addValue (BumpPtrAllocator &Alloc, const DIEValue &V)
template<class T >
value_iterator	addValue (BumpPtrAllocator &Alloc, dwarf::Attribute Attribute, dwarf::Form Form, T &&Value)
value_range	values ()
const_value_range	values () const

Detailed Description

A list of DIE values.

This is a singly-linked list, but instead of reversing the order of insertion, we keep a pointer to the back of the list so we can push in order.

There are two main reasons to choose a linked list over a customized vector-like data structure.

1. For teardown efficiency, we want DIEs to be BumpPtrAllocated. Using a linked list here makes this way easier to accomplish.
2. Carrying an extra pointer per DIEValue isn't expensive. 45% of DIEs have 2 or fewer values, and 90% have 5 or fewer. A vector would be over-allocated by 50% on average anyway, the same cost as the linked-list node.

Definition at line 589 of file DIE.h.

Member Typedef Documentation

const_value_range

using llvm::DIEValueList::const_value_range = iterator_range<const_value_iterator>

Definition at line 638 of file DIE.h.

value_range

using llvm::DIEValueList::value_range = iterator_range<value_iterator>

Definition at line 637 of file DIE.h.

Member Function Documentation

addValue() [1/2]

value_iterator llvm::DIEValueList::addValue ( BumpPtrAllocator &  Alloc, const DIEValue &  V  )

inline

Definition at line 640 of file DIE.h.

Referenced by llvm::DwarfCompileUnit::addAddressExpr(), llvm::DwarfUnit::addBlock(), llvm::DwarfUnit::addDIEEntry(), llvm::DwarfUnit::addDIETypeSignature(), llvm::DwarfCompileUnit::addExpr(), llvm::DwarfUnit::addFlag(), llvm::DwarfUnit::addLabel(), llvm::DwarfCompileUnit::addLabelAddress(), llvm::DwarfUnit::addLabelDelta(), llvm::DwarfCompileUnit::addLocalLabelAddress(), llvm::DwarfCompileUnit::addLocationList(), llvm::DwarfUnit::addSectionDelta(), llvm::DwarfUnit::addSInt(), llvm::DwarfUnit::addString(), llvm::DwarfUnit::addUInt(), llvm::DwarfCompileUnit::applyStmtList(), and llvm::DwarfUnit::constructContainingTypeDIEs().

addValue() [2/2]

template<class T >

value_iterator llvm::DIEValueList::addValue ( BumpPtrAllocator &  Alloc, dwarf::Attribute  Attribute, dwarf::Form  Form, T &&  Value  )

inline

Definition at line 645 of file DIE.h.

values() [1/2]

value_range llvm::DIEValueList::values ( )

inline

Definition at line 650 of file DIE.h.

References llvm::IntrusiveBackList< T >::begin(), llvm::IntrusiveBackList< T >::end(), and llvm::make_range().

Referenced by llvm::DIEHash::addSLEB128(), llvm::AsmPrinter::emitDwarfDIE(), getDIEStringAttr(), and printValues().

values() [2/2]

const_value_range llvm::DIEValueList::values ( ) const

inline

Definition at line 653 of file DIE.h.

References llvm::IntrusiveBackList< T >::begin(), llvm::IntrusiveBackList< T >::end(), and llvm::make_range().

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

• include/llvm/CodeGen/DIE.h