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 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	lexNamedVirtualRegister (Cursor C, MIToken &Token)
static Cursor	maybeLexRegister (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
static Cursor	maybeLexGlobalValue (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
static Cursor	maybeLexExternalSymbol (Cursor C, MIToken &Token, ErrorCallbackType ErrorCallback)
static Cursor	maybeLexMCSymbol (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 181 of file MILexer.cpp.

References llvm::StringSwitch< T, R >::Case(), llvm::StringSwitch< T, R >::Default(), llvm::MIToken::Identifier, llvm::MIToken::kw_address_taken, llvm::MIToken::kw_addrspace, llvm::MIToken::kw_afn, llvm::MIToken::kw_align, llvm::MIToken::kw_arcp, llvm::MIToken::kw_blockaddress, llvm::MIToken::kw_call_entry, llvm::MIToken::kw_cfi_aarch64_negate_ra_sign_state, 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_contract, 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_exact, llvm::MIToken::kw_float, llvm::MIToken::kw_floatpred, llvm::MIToken::kw_fp128, llvm::MIToken::kw_fpexcept, llvm::MIToken::kw_frame_destroy, 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_ninf, llvm::MIToken::kw_nnan, llvm::MIToken::kw_non_temporal, llvm::MIToken::kw_nsw, llvm::MIToken::kw_nsz, llvm::MIToken::kw_nuw, llvm::MIToken::kw_post_instr_symbol, llvm::MIToken::kw_ppc_fp128, llvm::MIToken::kw_pre_instr_symbol, llvm::MIToken::kw_reassoc, 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_unknown_size, llvm::MIToken::kw_volatile, llvm::MIToken::kw_x86_fp80, and llvm::MIToken::underscore.

Referenced by maybeLexIdentifier().

getMetadataKeywordKind()

static MIToken::TokenKind getMetadataKeywordKind ( StringRef  Identifier )

static

Definition at line 573 of file MILexer.cpp.

References llvm::StringSwitch< T, R >::Case(), llvm::StringSwitch< T, R >::Default(), llvm::MIToken::Error, llvm::MIToken::md_alias_scope, llvm::MIToken::md_diexpr, llvm::MIToken::md_dilocation, llvm::MIToken::md_noalias, llvm::MIToken::md_range, and llvm::MIToken::md_tbaa.

Referenced by maybeLexExlaim().

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 109 of file MILexer.cpp.

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

isNewlineChar()

static bool isNewlineChar ( char  C )

static

Definition at line 96 of file MILexer.cpp.

Referenced by lexStringConstant(), maybeLexEscapedIRValue(), maybeLexNewline(), and skipComment().

isRegisterChar()

static bool isRegisterChar ( char  C )

static

Returns true for a character allowed in a register name.

Definition at line 406 of file MILexer.cpp.

References isIdentifierChar().

Referenced by lexNamedVirtualRegister(), and maybeLexRegister().

isValidHexFloatingPointPrefix()

static bool isValidHexFloatingPointPrefix ( char  C )

static

Definition at line 517 of file MILexer.cpp.

Referenced by maybeLexHexadecimalLiteral().

lexFloatingPointLiteral()

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

static

Definition at line 521 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

Definition at line 159 of file MILexer.cpp.

References C, llvm::StringRef::drop_front(), llvm::MIToken::Error, isIdentifierChar(), lexStringConstant(), llvm::MIToken::reset(), llvm::MIToken::setOwnedStringValue(), llvm::String, and unescapeQuotedString().

Referenced by maybeLexExternalSymbol(), maybeLexGlobalValue(), maybeLexIRBlock(), maybeLexIRValue(), maybeLexStringConstant(), and maybeLexSubRegisterIndex().

lexNamedVirtualRegister()

static Cursor lexNamedVirtualRegister ( Cursor  C, MIToken &  Token  )

static

Definition at line 410 of file MILexer.cpp.

References C, isRegisterChar(), llvm::MIToken::NamedVirtualRegister, and llvm::MIToken::reset().

Referenced by maybeLexRegister().

lexStringConstant()

static Cursor lexStringConstant ( Cursor  C, ErrorCallbackType  ErrorCallback  )

static

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

Definition at line 145 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 394 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 353 of file MILexer.cpp.

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

Referenced by maybeLexEscapedIRValue().

maybeLexEscapedIRValue()

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

static

Definition at line 660 of file MILexer.cpp.

References C, llvm::MIToken::Eof, llvm::MIToken::Error, isNewlineChar(), llvm::lexMIToken(), maybeLexConstantPoolItem(), maybeLexExlaim(), maybeLexExternalSymbol(), maybeLexFixedStackObject(), maybeLexGlobalValue(), maybeLexHexadecimalLiteral(), maybeLexIdentifier(), maybeLexIRBlock(), maybeLexIRValue(), maybeLexJumpTableIndex(), maybeLexMachineBasicBlock(), maybeLexMCSymbol(), maybeLexNewline(), maybeLexNumericalLiteral(), maybeLexRegister(), maybeLexStackObject(), maybeLexStringConstant(), maybeLexSubRegisterIndex(), maybeLexSymbol(), llvm::None, llvm::MIToken::QuotedIRValue, llvm::MIToken::reset(), skipComment(), skipWhitespace(), and llvm::Sched::Source.

maybeLexExlaim()

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

static

Definition at line 584 of file MILexer.cpp.

References C, llvm::MIToken::exclaim, getMetadataKeywordKind(), llvm::MIToken::isError(), isIdentifierChar(), llvm::MIToken::location(), llvm::None, llvm::MIToken::reset(), and llvm::tgtok::StrVal.

Referenced by maybeLexEscapedIRValue().

maybeLexExternalSymbol()

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

static

Definition at line 462 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 349 of file MILexer.cpp.

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

Referenced by maybeLexEscapedIRValue().

maybeLexGlobalValue()

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

static

Definition at line 445 of file MILexer.cpp.

References llvm::lltok::APSInt, C, llvm::MIToken::GlobalValue, lexName(), llvm::MIToken::NamedGlobalValue, llvm::None, and llvm::MIToken::reset().

Referenced by maybeLexEscapedIRValue().

maybeLexHexadecimalLiteral()

static Cursor maybeLexHexadecimalLiteral ( Cursor  C, MIToken &  Token  )

static

Definition at line 537 of file MILexer.cpp.

References C, llvm::MIToken::FloatingPointLiteral, llvm::MIToken::HexLiteral, isValidHexFloatingPointPrefix(), llvm::None, llvm::MIToken::reset(), llvm::StringRef::size(), and llvm::tgtok::StrVal.

Referenced by maybeLexEscapedIRValue().

maybeLexIdentifier()

static Cursor maybeLexIdentifier ( Cursor  C, MIToken &  Token  )

static

Definition at line 258 of file MILexer.cpp.

References C, getIdentifierKind(), isIdentifierChar(), llvm::None, llvm::MIToken::reset(), and llvm::MIToken::setStringValue().

Referenced by maybeLexEscapedIRValue().

maybeLexIndex()

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

static

Definition at line 305 of file MILexer.cpp.

References llvm::lltok::APSInt, C, llvm::None, llvm::MIToken::reset(), and llvm::StringRef::size().

Referenced by maybeLexConstantPoolItem(), maybeLexFixedStackObject(), maybeLexIRBlock(), maybeLexIRValue(), and maybeLexJumpTableIndex().

maybeLexIndexAndName()

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

static

Definition at line 318 of file MILexer.cpp.

References llvm::lltok::APSInt, C, isIdentifierChar(), llvm::None, llvm::Number, llvm::MIToken::reset(), and llvm::StringRef::size().

Referenced by maybeLexStackObject().

maybeLexIRBlock()

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

static

Definition at line 366 of file MILexer.cpp.

References llvm::MIToken::IRBlock, lexName(), maybeLexIndex(), llvm::MIToken::NamedIRBlock, llvm::None, and llvm::StringRef::size().

Referenced by maybeLexEscapedIRValue().

maybeLexIRValue()

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

static

Definition at line 376 of file MILexer.cpp.

References llvm::MIToken::IRValue, lexName(), maybeLexIndex(), llvm::MIToken::NamedIRValue, llvm::None, and llvm::StringRef::size().

Referenced by maybeLexEscapedIRValue().

maybeLexJumpTableIndex()

static Cursor maybeLexJumpTableIndex ( Cursor  C, MIToken &  Token  )

static

Definition at line 341 of file MILexer.cpp.

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

Referenced by maybeLexEscapedIRValue().

maybeLexMachineBasicBlock()

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

static

Definition at line 270 of file MILexer.cpp.

References llvm::lltok::APSInt, C, llvm::MIToken::Error, isIdentifierChar(), llvm::MIToken::MachineBasicBlock, llvm::MIToken::MachineBasicBlockLabel, llvm::None, llvm::Number, llvm::MIToken::reset(), and llvm::StringRef::size().

Referenced by maybeLexEscapedIRValue().

maybeLexMCSymbol()

static Cursor maybeLexMCSymbol ( Cursor  C, MIToken &  Token, ErrorCallbackType  ErrorCallback  )

static

Definition at line 470 of file MILexer.cpp.

References llvm::None.

Referenced by maybeLexEscapedIRValue().

maybeLexNewline()

static Cursor maybeLexNewline ( Cursor  C, MIToken &  Token  )

static

Definition at line 651 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

Definition at line 559 of file MILexer.cpp.

References llvm::lltok::APSInt, C, llvm::MIToken::IntegerLiteral, lexFloatingPointLiteral(), llvm::None, llvm::MIToken::reset(), llvm::MIToken::setIntegerValue(), and llvm::tgtok::StrVal.

Referenced by maybeLexEscapedIRValue().

maybeLexRegister()

static Cursor maybeLexRegister ( Cursor  C, MIToken &  Token, ErrorCallbackType  ErrorCallback  )

static

Definition at line 420 of file MILexer.cpp.

References assert(), C, isRegisterChar(), lexNamedVirtualRegister(), lexVirtualRegister(), llvm::MIToken::NamedRegister, llvm::None, and llvm::MIToken::reset().

Referenced by maybeLexEscapedIRValue().

maybeLexStackObject()

static Cursor maybeLexStackObject ( Cursor  C, MIToken &  Token  )

static

Definition at line 345 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 386 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

Definition at line 357 of file MILexer.cpp.

References lexName(), llvm::None, llvm::StringRef::size(), and llvm::MIToken::SubRegisterIndex.

Referenced by maybeLexEscapedIRValue().

maybeLexSymbol()

static Cursor maybeLexSymbol ( Cursor  C, MIToken &  Token  )

static

Definition at line 635 of file MILexer.cpp.

References C, llvm::MIToken::coloncolon, llvm::MIToken::Error, llvm::None, llvm::MIToken::reset(), and symbolToken().

Referenced by maybeLexEscapedIRValue().

skipComment()

static Cursor skipComment ( Cursor  C )

static

Skip a line comment and return the updated cursor.

Definition at line 99 of file MILexer.cpp.

References C, and isNewlineChar().

Referenced by maybeLexEscapedIRValue().

skipWhitespace()

static Cursor skipWhitespace ( Cursor  C )

static

Skip the leading whitespace characters and return the updated cursor.

Definition at line 90 of file MILexer.cpp.

References C.

Referenced by maybeLexEscapedIRValue().

symbolToken()

static MIToken::TokenKind symbolToken ( char  C )

static

Definition at line 604 of file MILexer.cpp.

References llvm::MIToken::colon, llvm::MIToken::comma, llvm::MIToken::dot, llvm::MIToken::equal, llvm::MIToken::Error, llvm::MIToken::greater, llvm::MIToken::lbrace, llvm::MIToken::less, llvm::MIToken::lparen, llvm::MIToken::minus, llvm::MIToken::plus, llvm::MIToken::rbrace, and llvm::MIToken::rparen.

Referenced by maybeLexSymbol().

unescapeQuotedString()

static std::string unescapeQuotedString ( StringRef  Value )

static

Unescapes the given string value.

Expects the string value to be quoted.

Definition at line 117 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().