LLVM 20.0.0git
Public Member Functions | Static Public Member Functions | Static Public Attributes | List of all members
llvm::RISCVISAInfo Class Reference

#include "llvm/TargetParser/RISCVISAInfo.h"

Public Member Functions

 RISCVISAInfo (const RISCVISAInfo &)=delete
 
RISCVISAInfo & operator= (const RISCVISAInfo &)=delete
 
std::vector< std::string > toFeatures (bool AddAllExtensions=false, bool IgnoreUnknown=true) const
 Convert RISC-V ISA info to a feature vector.
 
const RISCVISAUtils::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 llvm::Expected< std::unique_ptr< RISCVISAInfo > > parseArchString (StringRef Arch, bool EnableExperimentalExtension, bool ExperimentalExtensionVersionCheck=true)
 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 llvm::Expected< std::unique_ptr< RISCVISAInfo > > createFromExtMap (unsigned XLen, const RISCVISAUtils::OrderedExtensionMap &Exts)
 
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 std::string getTargetFeatureForExtension (StringRef Ext)
 
static void printSupportedExtensions (StringMap< StringRef > &DescMap)
 
static void printEnabledExtensions (bool IsRV64, std::set< StringRef > &EnabledFeatureNames, StringMap< StringRef > &DescMap)
 
static std::pair< int, int > getRISCVFeaturesBitsInfo (StringRef Ext)
 Return the group id and bit position of __riscv_feature_bits.
 

Static Public Attributes

static constexpr unsigned FeatureBitSize = 2
 

Detailed Description

Definition at line 24 of file RISCVISAInfo.h.

Constructor & Destructor Documentation

◆ RISCVISAInfo()

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

Member Function Documentation

◆ computeDefaultABI()

StringRef RISCVISAInfo::computeDefaultABI ( ) const

Definition at line 956 of file RISCVISAInfo.cpp.

References llvm_unreachable.

◆ createFromExtMap()

llvm::Expected< std::unique_ptr< RISCVISAInfo > > RISCVISAInfo::createFromExtMap ( unsigned  XLen,
const RISCVISAUtils::OrderedExtensionMap &  Exts 
)
static

Definition at line 437 of file RISCVISAInfo.cpp.

References assert().

Referenced by printEnabledExtensions().

◆ getExtensions()

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

Definition at line 56 of file RISCVISAInfo.h.

◆ getFLen()

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

Definition at line 61 of file RISCVISAInfo.h.

◆ getMaxELen()

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

Definition at line 64 of file RISCVISAInfo.h.

◆ getMaxELenFp()

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

Definition at line 65 of file RISCVISAInfo.h.

◆ getMaxVLen()

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

Definition at line 63 of file RISCVISAInfo.h.

◆ getMinVLen()

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

Definition at line 62 of file RISCVISAInfo.h.

◆ getRISCVFeaturesBitsInfo()

std::pair< int, int > RISCVISAInfo::getRISCVFeaturesBitsInfo ( StringRef  Ext)
static

Return the group id and bit position of __riscv_feature_bits.

Returns <-1, -1> if not supported.

Definition at line 1049 of file RISCVISAInfo.cpp.

References RISCVBitPositions.

◆ getTargetFeatureForExtension()

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

Definition at line 997 of file RISCVISAInfo.cpp.

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

◆ getXLen()

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

Definition at line 60 of file RISCVISAInfo.h.

◆ hasExtension()

bool RISCVISAInfo::hasExtension ( StringRef  Ext) const

Definition at line 278 of file RISCVISAInfo.cpp.

References isSupportedExtension(), and stripExperimentalPrefix().

◆ isSupportedExtension() [1/2]

bool RISCVISAInfo::isSupportedExtension ( StringRef  Ext)
static

Definition at line 251 of file RISCVISAInfo.cpp.

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

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

◆ isSupportedExtension() [2/2]

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

Definition at line 264 of file RISCVISAInfo.cpp.

References I, and Range.

◆ isSupportedExtensionFeature()

bool RISCVISAInfo::isSupportedExtensionFeature ( StringRef  Ext)
static

Definition at line 240 of file RISCVISAInfo.cpp.

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

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

◆ isSupportedExtensionWithVersion()

bool RISCVISAInfo::isSupportedExtensionWithVersion ( StringRef  Ext)
static

Definition at line 977 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 
)
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 557 of file RISCVISAInfo.cpp.

References llvm::all_of(), llvm::RISCVISAUtils::AllStdExts, assert(), llvm::CallingConv::C, llvm::StringRef::consume_front(), contains(), llvm::StringRef::drop_front(), llvm::StringRef::empty(), llvm::StringRef::find(), findDefaultVersion(), findLastNonVersionCharacter(), llvm::StringRef::front(), getError(), getErrorForInvalidExt(), getExtensionType(), getExtensionTypeDesc(), getExtensionVersion(), I, Idx, isDigit(), isLower(), isSupportedExtension(), Name, parseArchString(), Profile, RISCVGImplications, llvm::StringRef::size(), llvm::StringRef::slice(), llvm::StringRef::starts_with(), llvm::StringRef::str(), llvm::StringRef::substr(), llvm::upper_bound(), and llvm::Version.

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 448 of file RISCVISAInfo.cpp.

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

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 481 of file RISCVISAInfo.cpp.

References llvm::all_of(), llvm::CallingConv::C, llvm::StringRef::consume_front(), llvm::StringRef::drop_front(), llvm::StringRef::empty(), llvm::StringRef::find(), llvm::StringRef::getAsInteger(), getError(), Idx, isDigit(), isLower(), llvm::StringRef::size(), llvm::StringRef::slice(), llvm::StringRef::str(), and llvm::StringRef::substr().

◆ printEnabledExtensions()

void RISCVISAInfo::printEnabledExtensions ( bool  IsRV64,
std::set< StringRef > &  EnabledFeatureNames,
StringMap< StringRef > &  DescMap 
)
static

Definition at line 118 of file RISCVISAInfo.cpp.

References createFromExtMap(), llvm::StringMapImpl::empty(), Name, llvm::outs(), PrintExtension(), and llvm::Version.

◆ printSupportedExtensions()

void RISCVISAInfo::printSupportedExtensions ( StringMap< StringRef > &  DescMap)
static

Definition at line 83 of file RISCVISAInfo.cpp.

References llvm::StringMapImpl::empty(), llvm::raw_ostream::indent(), llvm::outs(), P, PrintExtension(), and llvm::Version.

◆ 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 287 of file RISCVISAInfo.cpp.

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

◆ toString()

std::string RISCVISAInfo::toString ( ) const

Definition at line 928 of file RISCVISAInfo.cpp.

References llvm::raw_string_ostream::str().

Member Data Documentation

◆ FeatureBitSize

constexpr unsigned llvm::RISCVISAInfo::FeatureBitSize = 2
staticconstexpr

Definition at line 88 of file RISCVISAInfo.h.

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