SubtargetFeature.cpp File Reference

#include "llvm/MC/SubtargetFeature.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cctype>
#include <cstdlib>

Include dependency graph for SubtargetFeature.cpp:

Go to the source code of this file.

Functions
static bool	hasFlag (const StringRef Feature)
static std::string	StripFlag (const StringRef Feature)
static bool	isEnabled (const StringRef Feature)
static std::string	PrependFlag (const StringRef Feature, bool IsEnabled)
static void	Split (std::vector< std::string > &V, const StringRef S)
static std::string	Join (const std::vector< std::string > &V)
static const SubtargetFeatureKV *	Find (StringRef S, const SubtargetFeatureKV *A, size_t L)
	Find KV in array using binary search. More...
static size_t	getLongestEntryLength (const SubtargetFeatureKV *Table, size_t Size)
static void	Help (const SubtargetFeatureKV *CPUTable, size_t CPUTableSize, const SubtargetFeatureKV *FeatTable, size_t FeatTableSize)
static void	SetImpliedBits (uint64_t &Bits, const SubtargetFeatureKV *FeatureEntry, const SubtargetFeatureKV *FeatureTable, size_t FeatureTableSize)
static void	ClearImpliedBits (uint64_t &Bits, const SubtargetFeatureKV *FeatureEntry, const SubtargetFeatureKV *FeatureTable, size_t FeatureTableSize)

Function Documentation

static void ClearImpliedBits ( uint64_t &  Bits, const SubtargetFeatureKV *  FeatureEntry, const SubtargetFeatureKV *  FeatureTable, size_t  FeatureTableSize  )

static

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

Definition at line 208 of file SubtargetFeature.cpp.

References llvm::SubtargetFeatureKV::Implies, and llvm::SubtargetFeatureKV::Value.

Referenced by llvm::SubtargetFeatures::getFeatureBits(), and llvm::SubtargetFeatures::ToggleFeature().

static const SubtargetFeatureKV* Find ( StringRef  S, const SubtargetFeatureKV *  A, size_t  L  )

static

Find KV in array using binary search.

Definition at line 122 of file SubtargetFeature.cpp.

References F(), llvm::HexagonISD::Hi, and llvm::SubtargetFeatureKV::Key.

Referenced by llvm::SubtargetFeatures::getFeatureBits(), and llvm::SubtargetFeatures::ToggleFeature().

static size_t getLongestEntryLength ( const SubtargetFeatureKV *  Table, size_t  Size  )

static

getLongestEntryLength - Return the length of the longest entry in the table.

Definition at line 136 of file SubtargetFeature.cpp.

References llvm::LibFunc::strlen.

Referenced by Help().

static bool hasFlag ( const StringRef  Feature )

inlinestatic

hasFlag - Determine if a feature has a flag; '+' or '-'

Definition at line 30 of file SubtargetFeature.cpp.

References llvm::StringRef::empty().

Referenced by PrependFlag(), and StripFlag().

static void Help ( const SubtargetFeatureKV *  CPUTable, size_t  CPUTableSize, const SubtargetFeatureKV *  FeatTable, size_t  FeatTableSize  )

static

Display help for feature choices.

Definition at line 146 of file SubtargetFeature.cpp.

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

Referenced by llvm::SubtargetFeatures::getFeatureBits().

static bool isEnabled ( const StringRef  Feature )

inlinestatic

isEnabled - Return true if enable flag; '+'.

Definition at line 46 of file SubtargetFeature.cpp.

References llvm::StringRef::empty().

Referenced by llvm::SubtargetFeatures::getFeatureBits().

static std::string Join ( const std::vector< std::string > &  V )

static

Join a vector of strings to a string with a comma separating each element.

Definition at line 92 of file SubtargetFeature.cpp.

Referenced by llvm::SubtargetFeatures::getString().

static std::string PrependFlag ( const StringRef  Feature, bool  IsEnabled  )

inlinestatic

PrependFlag - Return a string with a prepended flag; '+' or '-'.

Definition at line 56 of file SubtargetFeature.cpp.

References llvm::StringRef::empty(), hasFlag(), and llvm::cl::Prefix.

Referenced by llvm::SubtargetFeatures::AddFeature().

static void SetImpliedBits ( uint64_t &  Bits, const SubtargetFeatureKV *  FeatureEntry, const SubtargetFeatureKV *  FeatureTable, size_t  FeatureTableSize  )

static

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

Definition at line 189 of file SubtargetFeature.cpp.

References llvm::SubtargetFeatureKV::Implies, and llvm::SubtargetFeatureKV::Value.

Referenced by llvm::SubtargetFeatures::getFeatureBits(), and llvm::SubtargetFeatures::ToggleFeature().

static void Split ( std::vector< std::string > &  V, const StringRef  S  )

static

Split - Splits a string of comma separated items in to a vector of strings.

Definition at line 68 of file SubtargetFeature.cpp.

References llvm::StringRef::empty(), llvm::StringRef::find(), and llvm::StringRef::substr().

Referenced by HandleCallsInBlockInlinedThroughInvoke(), printHelpStr(), split(), llvm::Regex::sub(), and llvm::SubtargetFeatures::SubtargetFeatures().

static std::string StripFlag ( const StringRef  Feature )

inlinestatic

StripFlag - Return string stripped of flag.

Definition at line 40 of file SubtargetFeature.cpp.

References hasFlag(), and llvm::StringRef::substr().

Referenced by llvm::SubtargetFeatures::getFeatureBits(), and llvm::SubtargetFeatures::ToggleFeature().