LLVM 19.0.0git
Classes | Public Types | Public Member Functions | Static Public Member Functions | List of all members
llvm::RISCVISAInfo Class Reference

#include "llvm/Support/RISCVISAInfo.h"

Classes

struct  ExtensionComparator
 Helper class for OrderedExtensionMap. More...
 
struct  ExtensionVersion
 Represents the major and version number components of a RISC-V extension. More...
 

Public Types

typedef std::map< std::string, ExtensionVersion, ExtensionComparator > OrderedExtensionMap
 OrderedExtensionMap is std::map, it's specialized to keep entries in canonical order of extension.
 

Public Member Functions

 RISCVISAInfo (const RISCVISAInfo &)=delete
 
RISCVISAInfo & operator= (const RISCVISAInfo &)=delete
 
 RISCVISAInfo (unsigned XLen, OrderedExtensionMap &Exts)
 
std::vector< std::string > toFeatures (bool AddAllExtensions=false, bool IgnoreUnknown=true) const
 Convert RISC-V ISA info to a feature vector.
 
const OrderedExtensionMap & getExtensions () const
 
unsigned getXLen () const
 
unsigned getFLen () const
 
unsigned getMinVLen () const
 
unsigned getMaxVLen () const
 
unsigned getMaxELen () const
 
unsigned getMaxELenFp () const
 
bool hasExtension (StringRef Ext) const
 
std::string toString () const
 
StringRef computeDefaultABI () const
 

Static Public Member Functions

static bool compareExtension (const std::string &LHS, const std::string &RHS)
 
static llvm::Expected< std::unique_ptr< RISCVISAInfo > > parseArchString (StringRef Arch, bool EnableExperimentalExtension, bool ExperimentalExtensionVersionCheck=true, bool IgnoreUnknown=false)
 Parse RISC-V ISA info from arch string.
 
static llvm::Expected< std::unique_ptr< RISCVISAInfo > > parseNormalizedArchString (StringRef Arch)
 Parse RISC-V ISA info from an arch string that is already in normalized form (as defined in the psABI).
 
static llvm::Expected< std::unique_ptr< RISCVISAInfo > > parseFeatures (unsigned XLen, const std::vector< std::string > &Features)
 Parse RISC-V ISA info from feature vector.
 
static bool isSupportedExtensionFeature (StringRef Ext)
 
static bool isSupportedExtension (StringRef Ext)
 
static bool isSupportedExtensionWithVersion (StringRef Ext)
 
static bool isSupportedExtension (StringRef Ext, unsigned MajorVersion, unsigned MinorVersion)
 
static llvm::Expected< std::unique_ptr< RISCVISAInfo > > postProcessAndChecking (std::unique_ptr< RISCVISAInfo > &&ISAInfo)
 
static std::string getTargetFeatureForExtension (StringRef Ext)
 

Detailed Description

Definition at line 23 of file RISCVISAInfo.h.

Member Typedef Documentation

◆ OrderedExtensionMap

typedef std::map<std::string, ExtensionVersion, ExtensionComparator> llvm::RISCVISAInfo::OrderedExtensionMap

OrderedExtensionMap is std::map, it's specialized to keep entries in canonical order of extension.

Definition at line 46 of file RISCVISAInfo.h.

Constructor & Destructor Documentation

◆ RISCVISAInfo() [1/2]

llvm::RISCVISAInfo::RISCVISAInfo ( const RISCVISAInfo &  )
delete

◆ RISCVISAInfo() [2/2]

llvm::RISCVISAInfo::RISCVISAInfo ( unsigned  XLen,
OrderedExtensionMap &  Exts 
)
inline

Definition at line 48 of file RISCVISAInfo.h.

Member Function Documentation

◆ compareExtension()

bool RISCVISAInfo::compareExtension ( const std::string &  LHS,
const std::string &  RHS 
)
static

Definition at line 530 of file RISCVISAInfo.cpp.

References getExtensionRank(), LHS, and RHS.

Referenced by llvm::RISCVISAInfo::ExtensionComparator::operator()().

◆ computeDefaultABI()

StringRef RISCVISAInfo::computeDefaultABI ( ) const

Definition at line 1395 of file RISCVISAInfo.cpp.

References hasExtension(), and llvm_unreachable.

◆ getExtensions()

const OrderedExtensionMap & llvm::RISCVISAInfo::getExtensions ( ) const
inline

Definition at line 75 of file RISCVISAInfo.h.

◆ getFLen()

unsigned llvm::RISCVISAInfo::getFLen ( ) const
inline

Definition at line 78 of file RISCVISAInfo.h.

◆ getMaxELen()

unsigned llvm::RISCVISAInfo::getMaxELen ( ) const
inline

Definition at line 81 of file RISCVISAInfo.h.

◆ getMaxELenFp()

unsigned llvm::RISCVISAInfo::getMaxELenFp ( ) const
inline

Definition at line 82 of file RISCVISAInfo.h.

◆ getMaxVLen()

unsigned llvm::RISCVISAInfo::getMaxVLen ( ) const
inline

Definition at line 80 of file RISCVISAInfo.h.

◆ getMinVLen()

unsigned llvm::RISCVISAInfo::getMinVLen ( ) const
inline

Definition at line 79 of file RISCVISAInfo.h.

◆ getTargetFeatureForExtension()

std::string RISCVISAInfo::getTargetFeatureForExtension ( StringRef  Ext)
static

Definition at line 1436 of file RISCVISAInfo.cpp.

References findLastNonVersionCharacter(), isExperimentalExtension(), isSupportedExtension(), isSupportedExtensionWithVersion(), and Name.

◆ getXLen()

unsigned llvm::RISCVISAInfo::getXLen ( ) const
inline

Definition at line 77 of file RISCVISAInfo.h.

◆ hasExtension()

bool RISCVISAInfo::hasExtension ( StringRef  Ext) const

Definition at line 462 of file RISCVISAInfo.cpp.

References isSupportedExtension(), and stripExperimentalPrefix().

Referenced by computeDefaultABI().

◆ isSupportedExtension() [1/2]

bool RISCVISAInfo::isSupportedExtension ( StringRef  Ext)
static

Definition at line 435 of file RISCVISAInfo.cpp.

References I, llvm::lower_bound(), SupportedExperimentalExtensions, SupportedExtensions, and verifyTables().

Referenced by getExtensionVersion(), getTargetFeatureForExtension(), hasExtension(), parseArchString(), processMultiLetterExtension(), processSingleLetterExtension(), and toFeatures().

◆ isSupportedExtension() [2/2]

bool RISCVISAInfo::isSupportedExtension ( StringRef  Ext,
unsigned  MajorVersion,
unsigned  MinorVersion 
)
static

Definition at line 448 of file RISCVISAInfo.cpp.

References I, SupportedExperimentalExtensions, and SupportedExtensions.

◆ isSupportedExtensionFeature()

bool RISCVISAInfo::isSupportedExtensionFeature ( StringRef  Ext)
static

Definition at line 424 of file RISCVISAInfo.cpp.

References llvm::ArrayRef< T >::end(), I, llvm::lower_bound(), stripExperimentalPrefix(), SupportedExperimentalExtensions, and SupportedExtensions.

Referenced by llvm::RISCVFeatures::parseFeatureBits().

◆ isSupportedExtensionWithVersion()

bool RISCVISAInfo::isSupportedExtensionWithVersion ( StringRef  Ext)
static

Definition at line 1416 of file RISCVISAInfo.cpp.

References llvm::consumeError(), llvm::StringRef::empty(), findLastNonVersionCharacter(), getExtensionVersion(), and Name.

Referenced by getTargetFeatureForExtension().

◆ operator=()

RISCVISAInfo & llvm::RISCVISAInfo::operator= ( const RISCVISAInfo &  )
delete

◆ parseArchString()

llvm::Expected< std::unique_ptr< RISCVISAInfo > > RISCVISAInfo::parseArchString ( StringRef  Arch,
bool  EnableExperimentalExtension,
bool  ExperimentalExtensionVersionCheck = true,
bool  IgnoreUnknown = false 
)
static

Parse RISC-V ISA info from arch string.

If IgnoreUnknown is set, any unrecognised extension names or extensions with unrecognised versions will be silently dropped, except for the special case of the base 'i' and 'e' extensions, where the default version will be used (as ignoring the base is not possible).

Definition at line 891 of file RISCVISAInfo.cpp.

References AllStdExts, llvm::any_of(), llvm::StringRef::back(), llvm::StringRef::consume_front(), llvm::consumeError(), llvm::StringRef::contains(), llvm::createStringError(), llvm::StringRef::drop_front(), llvm::StringRef::empty(), llvm::find_if(), findDefaultVersion(), llvm::StringRef::front(), getExtensionVersion(), getStringErrorForInvalidExt(), llvm::invalid_argument, isDigit(), isSupportedExtension(), llvm_unreachable, parseArchString(), postProcessAndChecking(), processMultiLetterExtension(), processSingleLetterExtension(), Profile, RISCVGImplications, llvm::StringRef::size(), splitExtsByUnderscore(), llvm::StringRef::starts_with(), llvm::StringRef::str(), llvm::StringRef::substr(), and SupportedProfiles.

Referenced by llvm::RISCV::getFeaturesForCPU(), and parseArchString().

◆ parseFeatures()

llvm::Expected< std::unique_ptr< RISCVISAInfo > > RISCVISAInfo::parseFeatures ( unsigned  XLen,
const std::vector< std::string > &  Features 
)
static

Parse RISC-V ISA info from feature vector.

Definition at line 697 of file RISCVISAInfo.cpp.

References llvm::Add, assert(), llvm::StringRef::drop_front(), llvm::lower_bound(), postProcessAndChecking(), llvm::StringRef::size(), llvm::StringRef::str(), stripExperimentalPrefix(), SupportedExperimentalExtensions, and SupportedExtensions.

Referenced by llvm::RISCVFeatures::parseFeatureBits().

◆ parseNormalizedArchString()

llvm::Expected< std::unique_ptr< RISCVISAInfo > > RISCVISAInfo::parseNormalizedArchString ( StringRef  Arch)
static

Parse RISC-V ISA info from an arch string that is already in normalized form (as defined in the psABI).

Unlike parseArchString, this function will not error for unrecognized extension names or extension versions.

Definition at line 731 of file RISCVISAInfo.cpp.

References llvm::any_of(), llvm::StringRef::back(), llvm::createStringError(), llvm::StringRef::drop_back(), llvm::StringRef::empty(), llvm::StringRef::getAsInteger(), llvm::invalid_argument, isDigit(), llvm::StringRef::split(), llvm::StringRef::starts_with(), and llvm::StringRef::substr().

◆ postProcessAndChecking()

llvm::Expected< std::unique_ptr< RISCVISAInfo > > RISCVISAInfo::postProcessAndChecking ( std::unique_ptr< RISCVISAInfo > &&  ISAInfo)
static

Definition at line 1383 of file RISCVISAInfo.cpp.

Referenced by parseArchString(), and parseFeatures().

◆ toFeatures()

std::vector< std::string > RISCVISAInfo::toFeatures ( bool  AddAllExtensions = false,
bool  IgnoreUnknown = true 
) const

Convert RISC-V ISA info to a feature vector.

Definition at line 543 of file RISCVISAInfo.cpp.

References _, isExperimentalExtension(), isSupportedExtension(), SupportedExperimentalExtensions, and SupportedExtensions.

◆ toString()

std::string RISCVISAInfo::toString ( ) const

Definition at line 1365 of file RISCVISAInfo.cpp.

References llvm::raw_string_ostream::str().

The documentation for this class was generated from the following files:
Generated on Mon Apr 22 2024 20:33:25 for LLVM by doxygen 1.9.6