LLVM  6.0.0svn
Functions
MILexer.cpp File Reference
#include "MILexer.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include <algorithm>
#include <cassert>
#include <cctype>
#include <string>
Include dependency graph for MILexer.cpp:

Go to the source code of this file.

Functions

static Cursor skipWhitespace (Cursor C)
 Skip the leading whitespace characters and return the updated cursor. More...
 
static bool isNewlineChar (char C)
 
static Cursor skipComment (Cursor C)
 Skip a line comment and return the updated cursor. More...
 
static bool isIdentifierChar (char C)
 Return true if the given character satisfies the following regular expression: [-a-zA-Z$._0-9]. More...
 
static std::string unescapeQuotedString (StringRef Value)
 Unescapes the given string value. More...
 
static Cursor lexStringConstant (Cursor C, ErrorCallbackType ErrorCallback)
 Lex a string constant using the following regular expression: "[^"]*". More...
 
static Cursor lexName (Cursor C, MIToken &Token, MIToken::TokenKind Type, unsigned PrefixLength, ErrorCallbackType ErrorCallback)
 
static Cursor maybeLexIntegerOrScalarType (Cursor C, MIToken &Token)
 
static MIToken::TokenKind getIdentifierKind (StringRef Identifier)
 
static Cursor maybeLexIdentifier (Cursor C, MIToken &Token)
 
static Cursor maybeLexMachineBasicBlock (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static Cursor maybeLexIndex (Cursor C, MIToken &Token, StringRef Rule, MIToken::TokenKind Kind)
 
static Cursor maybeLexIndexAndName (Cursor C, MIToken &Token, StringRef Rule, MIToken::TokenKind Kind)
 
static Cursor maybeLexJumpTableIndex (Cursor C, MIToken &Token)
 
static Cursor maybeLexStackObject (Cursor C, MIToken &Token)
 
static Cursor maybeLexFixedStackObject (Cursor C, MIToken &Token)
 
static Cursor maybeLexConstantPoolItem (Cursor C, MIToken &Token)
 
static Cursor maybeLexSubRegisterIndex (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static Cursor maybeLexIRBlock (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static Cursor maybeLexIRValue (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static Cursor maybeLexStringConstant (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static Cursor lexVirtualRegister (Cursor C, MIToken &Token)
 
static bool isRegisterChar (char C)
 Returns true for a character allowed in a register name. More...
 
static Cursor maybeLexRegister (Cursor C, MIToken &Token)
 
static Cursor maybeLexGlobalValue (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static Cursor maybeLexExternalSymbol (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static bool isValidHexFloatingPointPrefix (char C)
 
static Cursor lexFloatingPointLiteral (Cursor Range, Cursor C, MIToken &Token)
 
static Cursor maybeLexHexadecimalLiteral (Cursor C, MIToken &Token)
 
static Cursor maybeLexNumericalLiteral (Cursor C, MIToken &Token)
 
static MIToken::TokenKind getMetadataKeywordKind (StringRef Identifier)
 
static Cursor maybeLexExlaim (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 
static MIToken::TokenKind symbolToken (char C)
 
static Cursor maybeLexSymbol (Cursor C, MIToken &Token)
 
static Cursor maybeLexNewline (Cursor C, MIToken &Token)
 
static Cursor maybeLexEscapedIRValue (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
 

Function Documentation

◆ getIdentifierKind()

static MIToken::TokenKind getIdentifierKind ( StringRef  Identifier)
static

Definition at line 199 of file MILexer.cpp.

References llvm::StringSwitch< T, R >::Case(), llvm::StringSwitch< T, R >::Default(), llvm::object::Identifier, llvm::MIToken::Identifier, llvm::MIToken::kw_address_taken, llvm::MIToken::kw_align, llvm::MIToken::kw_blockaddress, llvm::MIToken::kw_call_entry, llvm::MIToken::kw_cfi_adjust_cfa_offset, llvm::MIToken::kw_cfi_def_cfa, llvm::MIToken::kw_cfi_def_cfa_offset, llvm::MIToken::kw_cfi_def_cfa_register, llvm::MIToken::kw_cfi_escape, llvm::MIToken::kw_cfi_offset, llvm::MIToken::kw_cfi_register, llvm::MIToken::kw_cfi_rel_offset, llvm::MIToken::kw_cfi_remember_state, llvm::MIToken::kw_cfi_restore, llvm::MIToken::kw_cfi_restore_state, llvm::MIToken::kw_cfi_same_value, llvm::MIToken::kw_cfi_undefined, llvm::MIToken::kw_cfi_window_save, llvm::MIToken::kw_constant_pool, llvm::MIToken::kw_dead, llvm::MIToken::kw_debug_location, llvm::MIToken::kw_debug_use, llvm::MIToken::kw_def, llvm::MIToken::kw_dereferenceable, llvm::MIToken::kw_double, llvm::MIToken::kw_early_clobber, llvm::MIToken::kw_float, llvm::MIToken::kw_floatpred, llvm::MIToken::kw_fp128, llvm::MIToken::kw_frame_setup, llvm::MIToken::kw_got, llvm::MIToken::kw_half, llvm::MIToken::kw_implicit, llvm::MIToken::kw_implicit_define, llvm::MIToken::kw_internal, llvm::MIToken::kw_intpred, llvm::MIToken::kw_intrinsic, llvm::MIToken::kw_invariant, llvm::MIToken::kw_jump_table, llvm::MIToken::kw_killed, llvm::MIToken::kw_landing_pad, llvm::MIToken::kw_liveins, llvm::MIToken::kw_liveout, llvm::MIToken::kw_non_temporal, llvm::MIToken::kw_ppc_fp128, llvm::MIToken::kw_renamable, llvm::MIToken::kw_stack, llvm::MIToken::kw_successors, llvm::MIToken::kw_target_flags, llvm::MIToken::kw_target_index, llvm::MIToken::kw_tied_def, llvm::MIToken::kw_undef, llvm::MIToken::kw_volatile, llvm::MIToken::kw_x86_fp80, and llvm::MIToken::underscore.

Referenced by maybeLexIdentifier().

◆ getMetadataKeywordKind()

static MIToken::TokenKind getMetadataKeywordKind ( StringRef  Identifier)
static

◆ isIdentifierChar()

static bool isIdentifierChar ( char  C)
static

Return true if the given character satisfies the following regular expression: [-a-zA-Z$._0-9].

Definition at line 110 of file MILexer.cpp.

Referenced by isRegisterChar(), lexName(), maybeLexExlaim(), maybeLexIdentifier(), maybeLexIndexAndName(), and maybeLexMachineBasicBlock().

◆ isNewlineChar()

static bool isNewlineChar ( char  C)
static

◆ isRegisterChar()

static bool isRegisterChar ( char  C)
static

Returns true for a character allowed in a register name.

Definition at line 407 of file MILexer.cpp.

References isIdentifierChar().

Referenced by maybeLexRegister().

◆ isValidHexFloatingPointPrefix()

static bool isValidHexFloatingPointPrefix ( char  C)
static

Definition at line 450 of file MILexer.cpp.

Referenced by maybeLexHexadecimalLiteral().

◆ lexFloatingPointLiteral()

static Cursor lexFloatingPointLiteral ( Cursor  Range,
Cursor  C,
MIToken Token 
)
static

Definition at line 454 of file MILexer.cpp.

References C, llvm::MIToken::FloatingPointLiteral, and llvm::MIToken::reset().

Referenced by maybeLexNumericalLiteral().

◆ lexName()

static Cursor lexName ( Cursor  C,
MIToken Token,
MIToken::TokenKind  Type,
unsigned  PrefixLength,
ErrorCallbackType  ErrorCallback 
)
static

◆ lexStringConstant()

static Cursor lexStringConstant ( Cursor  C,
ErrorCallbackType  ErrorCallback 
)
static

Lex a string constant using the following regular expression: "[^"]*".

Definition at line 146 of file MILexer.cpp.

References assert(), C, isNewlineChar(), and llvm::None.

Referenced by lexName().

◆ lexVirtualRegister()

static Cursor lexVirtualRegister ( Cursor  C,
MIToken Token 
)
static

Definition at line 395 of file MILexer.cpp.

References llvm::lltok::APSInt, C, llvm::MIToken::reset(), and llvm::MIToken::VirtualRegister.

Referenced by maybeLexRegister().

◆ maybeLexConstantPoolItem()

static Cursor maybeLexConstantPoolItem ( Cursor  C,
MIToken Token 
)
static

Definition at line 354 of file MILexer.cpp.

References llvm::MIToken::ConstantPoolItem, and maybeLexIndex().

Referenced by maybeLexEscapedIRValue().

◆ maybeLexEscapedIRValue()

static Cursor maybeLexEscapedIRValue ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

◆ maybeLexExlaim()

static Cursor maybeLexExlaim ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

◆ maybeLexExternalSymbol()

static Cursor maybeLexExternalSymbol ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

Definition at line 442 of file MILexer.cpp.

References llvm::MIToken::ExternalSymbol, lexName(), and llvm::None.

Referenced by maybeLexEscapedIRValue().

◆ maybeLexFixedStackObject()

static Cursor maybeLexFixedStackObject ( Cursor  C,
MIToken Token 
)
static

Definition at line 350 of file MILexer.cpp.

References llvm::MIToken::FixedStackObject, and maybeLexIndex().

Referenced by maybeLexEscapedIRValue().

◆ maybeLexGlobalValue()

static Cursor maybeLexGlobalValue ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

◆ maybeLexHexadecimalLiteral()

static Cursor maybeLexHexadecimalLiteral ( Cursor  C,
MIToken Token 
)
static

◆ maybeLexIdentifier()

static Cursor maybeLexIdentifier ( Cursor  C,
MIToken Token 
)
static

◆ maybeLexIndex()

static Cursor maybeLexIndex ( Cursor  C,
MIToken Token,
StringRef  Rule,
MIToken::TokenKind  Kind 
)
static

◆ maybeLexIndexAndName()

static Cursor maybeLexIndexAndName ( Cursor  C,
MIToken Token,
StringRef  Rule,
MIToken::TokenKind  Kind 
)
static

◆ maybeLexIntegerOrScalarType()

static Cursor maybeLexIntegerOrScalarType ( Cursor  C,
MIToken Token 
)
static

◆ maybeLexIRBlock()

static Cursor maybeLexIRBlock ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

◆ maybeLexIRValue()

static Cursor maybeLexIRValue ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

◆ maybeLexJumpTableIndex()

static Cursor maybeLexJumpTableIndex ( Cursor  C,
MIToken Token 
)
static

Definition at line 342 of file MILexer.cpp.

References llvm::MIToken::JumpTableIndex, and maybeLexIndex().

Referenced by maybeLexEscapedIRValue().

◆ maybeLexMachineBasicBlock()

static Cursor maybeLexMachineBasicBlock ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

◆ maybeLexNewline()

static Cursor maybeLexNewline ( Cursor  C,
MIToken Token 
)
static

Definition at line 583 of file MILexer.cpp.

References C, isNewlineChar(), llvm::MIToken::Newline, llvm::None, and llvm::MIToken::reset().

Referenced by maybeLexEscapedIRValue().

◆ maybeLexNumericalLiteral()

static Cursor maybeLexNumericalLiteral ( Cursor  C,
MIToken Token 
)
static

◆ maybeLexRegister()

static Cursor maybeLexRegister ( Cursor  C,
MIToken Token 
)
static

◆ maybeLexStackObject()

static Cursor maybeLexStackObject ( Cursor  C,
MIToken Token 
)
static

Definition at line 346 of file MILexer.cpp.

References maybeLexIndexAndName(), and llvm::MIToken::StackObject.

Referenced by maybeLexEscapedIRValue().

◆ maybeLexStringConstant()

static Cursor maybeLexStringConstant ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

Definition at line 387 of file MILexer.cpp.

References lexName(), llvm::None, and llvm::MIToken::StringConstant.

Referenced by maybeLexEscapedIRValue().

◆ maybeLexSubRegisterIndex()

static Cursor maybeLexSubRegisterIndex ( Cursor  C,
MIToken Token,
ErrorCallbackType  ErrorCallback 
)
static

◆ maybeLexSymbol()

static Cursor maybeLexSymbol ( Cursor  C,
MIToken Token 
)
static

◆ skipComment()

static Cursor skipComment ( Cursor  C)
static

Skip a line comment and return the updated cursor.

Definition at line 100 of file MILexer.cpp.

References C, and isNewlineChar().

Referenced by llvm::yaml::Scanner::failed(), and maybeLexEscapedIRValue().

◆ skipWhitespace()

static Cursor skipWhitespace ( Cursor  C)
static

Skip the leading whitespace characters and return the updated cursor.

Definition at line 91 of file MILexer.cpp.

References C.

Referenced by maybeLexEscapedIRValue().

◆ symbolToken()

static MIToken::TokenKind symbolToken ( char  C)
static

◆ unescapeQuotedString()

static std::string unescapeQuotedString ( StringRef  Value)
static

Unescapes the given string value.

Expects the string value to be quoted.

Definition at line 118 of file MILexer.cpp.

References assert(), llvm::StringRef::back(), C, llvm::StringRef::front(), llvm::hexDigitValue(), llvm::StringRef::size(), and llvm::StringRef::substr().

Referenced by lexName().