llvm::ArrayRecycler< T, Align >::Capacity Class Reference

The size of an allocated array is represented by a Capacity instance. More...

#include "llvm/Support/ArrayRecycler.h"

Public Member Functions
	Capacity ()
size_t	getSize () const
	Get the number of elements in an array with this capacity.
unsigned	getBucket () const
	Get the bucket number for this capacity.
Capacity	getNext () const
	Get the next larger capacity.

Static Public Member Functions
static Capacity	get (size_t N)
	Get the capacity of an array that can hold at least N elements.

Detailed Description

template<class T, size_t Align = alignof(T)>
class llvm::ArrayRecycler< T, Align >::Capacity

The size of an allocated array is represented by a Capacity instance.

This class is much smaller than a size_t, and it provides methods to work with the set of legal array capacities.

Definition at line 71 of file ArrayRecycler.h.

Constructor & Destructor Documentation

Capacity()

template<class T , size_t Align = alignof(T)>

llvm::ArrayRecycler< T, Align >::Capacity::Capacity ( )

inline

Definition at line 76 of file ArrayRecycler.h.

Referenced by llvm::ArrayRecycler< T, Align >::Capacity::get(), and llvm::ArrayRecycler< T, Align >::Capacity::getNext().

Member Function Documentation

get()

template<class T , size_t Align = alignof(T)>

static Capacity llvm::ArrayRecycler< T, Align >::Capacity::get ( size_t  N )

inlinestatic

Get the capacity of an array that can hold at least N elements.

Definition at line 79 of file ArrayRecycler.h.

References llvm::ArrayRecycler< T, Align >::Capacity::Capacity(), llvm::Log2_64_Ceil(), and N.

Referenced by llvm::GVNExpression::BasicExpression::allocateOperands(), and llvm::GVNExpression::BasicExpression::deallocateOperands().

getBucket()

template<class T , size_t Align = alignof(T)>

unsigned llvm::ArrayRecycler< T, Align >::Capacity::getBucket ( ) const

inline

Get the bucket number for this capacity.

Definition at line 87 of file ArrayRecycler.h.

Referenced by llvm::ArrayRecycler< T, Align >::allocate(), and llvm::ArrayRecycler< T, Align >::deallocate().

getNext()

template<class T , size_t Align = alignof(T)>

Capacity llvm::ArrayRecycler< T, Align >::Capacity::getNext ( ) const

inline

Get the next larger capacity.

Large capacities grow exponentially, so this function can be used to reallocate incrementally growing vectors in amortized linear time.

Definition at line 92 of file ArrayRecycler.h.

References llvm::ArrayRecycler< T, Align >::Capacity::Capacity().

getSize()

template<class T , size_t Align = alignof(T)>

size_t llvm::ArrayRecycler< T, Align >::Capacity::getSize ( ) const

inline

Get the number of elements in an array with this capacity.

Definition at line 84 of file ArrayRecycler.h.

Referenced by llvm::ArrayRecycler< T, Align >::allocate().

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

• include/llvm/Support/ArrayRecycler.h