gem5  v21.2.1.1
Public Member Functions | Static Public Member Functions | Private Attributes | List of all members
gem5::compression::DictionaryCompressor< T >::UncompressedPattern Class Reference

A pattern containing the original uncompressed data. More...

#include <dictionary_compressor.hh>

Inheritance diagram for gem5::compression::DictionaryCompressor< T >::UncompressedPattern:
gem5::compression::DictionaryCompressor< T >::Pattern gem5::compression::BaseDelta< BaseType, DeltaSizeBits >::PatternX gem5::compression::RepeatedQwords::PatternX gem5::compression::Zero::PatternX

Public Member Functions

 UncompressedPattern (const int number, const uint64_t code, const uint64_t metadata_length, const int match_location, const DictionaryEntry bytes)
DictionaryEntry decompress (const DictionaryEntry dict_bytes) const override
 Decompress the pattern. More...
- Public Member Functions inherited from gem5::compression::DictionaryCompressor< T >::Pattern
 Pattern (const int number, const uint64_t code, const uint64_t metadata_length, const uint64_t num_unmatched_bits, const int match_location, const bool allocate=true)
 Default constructor. More...
virtual ~Pattern ()=default
 Default destructor. More...
int getPatternNumber () const
 Get enum number associated to this pattern. More...
uint8_t getCode () const
 Get code of this pattern. More...
uint8_t getMatchLocation () const
 Get the index of the dictionary match location. More...
virtual std::size_t getSizeBits () const
 Get size, in bits, of the pattern (excluding prefix). More...
bool shouldAllocate () const
 Determine if pattern allocates a dictionary entry. More...
std::string print () const
 Extract pattern's information to a string. More...

Static Public Member Functions

static bool isPattern (const DictionaryEntry &bytes, const DictionaryEntry &dict_bytes, const int match_location)

Private Attributes

const DictionaryEntry data
 A copy of the original data. More...

Additional Inherited Members

- Protected Attributes inherited from gem5::compression::DictionaryCompressor< T >::Pattern
const int patternNumber
 Pattern enum number. More...
const uint8_t code
 Code associated to the pattern. More...
const uint8_t length
 Length, in bits, of the code and match location. More...
const uint8_t numUnmatchedBits
 Number of unmatched bits. More...
const int matchLocation
 Index representing the the match location. More...
const bool allocate
 Wether the pattern allocates a dictionary entry or not. More...

Detailed Description

template<class T>
class gem5::compression::DictionaryCompressor< T >::UncompressedPattern

A pattern containing the original uncompressed data.

This should be the worst case of every pattern factory, where if all other patterns fail, an instance of this pattern is created.

Definition at line 416 of file dictionary_compressor.hh.

Constructor & Destructor Documentation

◆ UncompressedPattern()

template<class T >
gem5::compression::DictionaryCompressor< T >::UncompressedPattern::UncompressedPattern ( const int  number,
const uint64_t  code,
const uint64_t  metadata_length,
const int  match_location,
const DictionaryEntry  bytes 

Definition at line 424 of file dictionary_compressor.hh.

Member Function Documentation

◆ decompress()

template<class T >
DictionaryEntry gem5::compression::DictionaryCompressor< T >::UncompressedPattern::decompress ( const DictionaryEntry  dict_bytes) const

Decompress the pattern.

Each pattern has its own way of interpreting its data.

dict_bytesThe bytes in the corresponding matching entry.
The decompressed pattern.

Implements gem5::compression::DictionaryCompressor< T >::Pattern.

Definition at line 444 of file dictionary_compressor.hh.

References data.

◆ isPattern()

template<class T >
static bool gem5::compression::DictionaryCompressor< T >::UncompressedPattern::isPattern ( const DictionaryEntry bytes,
const DictionaryEntry dict_bytes,
const int  match_location 

Definition at line 436 of file dictionary_compressor.hh.

Member Data Documentation

◆ data

template<class T >
const DictionaryEntry gem5::compression::DictionaryCompressor< T >::UncompressedPattern::data

A copy of the original data.

Definition at line 421 of file dictionary_compressor.hh.

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

Generated on Wed May 4 2022 12:15:03 for gem5 by doxygen 1.8.17