MCSubtargetInfo.cpp File Reference

#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/MC/MCInstrItineraries.h"
#include "llvm/MC/MCSchedule.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/SubtargetFeature.h"
#include <algorithm>
#include <cassert>
#include <cstring>
#include <optional>

Go to the source code of this file.

Functions
template<typename T >
static const T *	Find (StringRef S, ArrayRef< T > A)
	Find KV in array using binary search.
static void	SetImpliedBits (FeatureBitset &Bits, const FeatureBitset &Implies, ArrayRef< SubtargetFeatureKV > FeatureTable)
	For each feature that is (transitively) implied by this feature, set it.
static void	ClearImpliedBits (FeatureBitset &Bits, unsigned Value, ArrayRef< SubtargetFeatureKV > FeatureTable)
	For each feature that (transitively) implies this feature, clear it.
static void	ApplyFeatureFlag (FeatureBitset &Bits, StringRef Feature, ArrayRef< SubtargetFeatureKV > FeatureTable)
static size_t	getLongestEntryLength (ArrayRef< SubtargetFeatureKV > Table)
	Return the length of the longest entry in the table.
static size_t	getLongestEntryLength (ArrayRef< StringRef > Table)
static void	Help (ArrayRef< StringRef > CPUNames, ArrayRef< SubtargetFeatureKV > FeatTable)
	Display help for feature and mcpu choices.
static void	cpuHelp (ArrayRef< StringRef > CPUNames)
	Display help for mcpu choices only.
static FeatureBitset	getFeatures (MCSubtargetInfo &STI, StringRef CPU, StringRef TuneCPU, StringRef FS, ArrayRef< StringRef > ProcNames, ArrayRef< SubtargetSubTypeKV > ProcDesc, ArrayRef< SubtargetFeatureKV > ProcFeatures)

Function Documentation

ApplyFeatureFlag()

static void ApplyFeatureFlag ( FeatureBitset &  Bits, StringRef  Feature, ArrayRef< SubtargetFeatureKV >  FeatureTable  )

static

Definition at line 59 of file MCSubtargetInfo.cpp.

References assert(), ClearImpliedBits(), llvm::errs(), Find(), llvm::FeatureBitArray::getAsBitset(), llvm::SubtargetFeatures::hasFlag(), llvm::SubtargetFeatureKV::Implies, llvm::SubtargetFeatures::isEnabled(), SetImpliedBits(), llvm::SubtargetFeatures::StripFlag(), and llvm::SubtargetFeatureKV::Value.

Referenced by getFeatures().

ClearImpliedBits()

static void ClearImpliedBits ( FeatureBitset &  Bits, unsigned  Value, ArrayRef< SubtargetFeatureKV >  FeatureTable  )

static

For each feature that (transitively) implies this feature, clear it.

Definition at line 49 of file MCSubtargetInfo.cpp.

References ClearImpliedBits().

Referenced by ApplyFeatureFlag(), llvm::MCSubtargetInfo::ClearFeatureBitsTransitively(), ClearImpliedBits(), and llvm::MCSubtargetInfo::ToggleFeature().

cpuHelp()

static void cpuHelp ( ArrayRef< StringRef >  CPUNames )

static

Display help for mcpu choices only.

Definition at line 142 of file MCSubtargetInfo.cpp.

References llvm::errs().

Referenced by getFeatures().

Find()

template<typename T >

static const T * Find ( StringRef  S, ArrayRef< T >  A  )

static

Find KV in array using binary search.

Definition at line 26 of file MCSubtargetInfo.cpp.

References A, F, and llvm::lower_bound().

Referenced by llvm::fuzzerop::anyAggregateType(), ApplyFeatureFlag(), getFeatures(), llvm::MCSubtargetInfo::getSchedModelForCPU(), llvm::logicalview::LVCodeViewReader::isSystemEntry(), replaceTargetsFromPHINode(), and llvm::MCSubtargetInfo::ToggleFeature().

getFeatures()

static FeatureBitset getFeatures ( MCSubtargetInfo &  STI, StringRef  CPU, StringRef  TuneCPU, StringRef  FS, ArrayRef< StringRef >  ProcNames, ArrayRef< SubtargetSubTypeKV >  ProcDesc, ArrayRef< SubtargetFeatureKV >  ProcFeatures  )

static

Definition at line 169 of file MCSubtargetInfo.cpp.

References ApplyFeatureFlag(), assert(), cpuHelp(), llvm::ArrayRef< T >::empty(), llvm::StringRef::empty(), llvm::errs(), Find(), llvm::FeatureBitArray::getAsBitset(), llvm::SubtargetFeatures::getFeatures(), Help(), llvm::SubtargetSubTypeKV::Implies, llvm::is_sorted(), SetImpliedBits(), and llvm::SubtargetSubTypeKV::TuneImplies.

Referenced by llvm::MCSubtargetInfo::InitMCProcessorInfo(), and llvm::MCSubtargetInfo::setDefaultFeatures().

getLongestEntryLength() [1/2]

static size_t getLongestEntryLength ( ArrayRef< StringRef >  Table )

static

Definition at line 95 of file MCSubtargetInfo.cpp.

References I.

getLongestEntryLength() [2/2]

static size_t getLongestEntryLength ( ArrayRef< SubtargetFeatureKV >  Table )

static

Return the length of the longest entry in the table.

Definition at line 88 of file MCSubtargetInfo.cpp.

References I.

Referenced by Help().

Help()

static void Help ( ArrayRef< StringRef >  CPUNames, ArrayRef< SubtargetFeatureKV >  FeatTable  )

static

Display help for feature and mcpu choices.

Definition at line 103 of file MCSubtargetInfo.cpp.

References llvm::errs(), llvm::format(), and getLongestEntryLength().

Referenced by llvm::cl::extrahelp::extrahelp(), and getFeatures().

SetImpliedBits()

static void SetImpliedBits ( FeatureBitset &  Bits, const FeatureBitset &  Implies, ArrayRef< SubtargetFeatureKV >  FeatureTable  )

static

For each feature that is (transitively) implied by this feature, set it.

Definition at line 37 of file MCSubtargetInfo.cpp.

References SetImpliedBits(), and llvm::FeatureBitset::test().

Referenced by ApplyFeatureFlag(), getFeatures(), llvm::MCSubtargetInfo::SetFeatureBitsTransitively(), SetImpliedBits(), and llvm::MCSubtargetInfo::ToggleFeature().