LLVM 20.0.0git
Functions
MILexer.cpp File Reference
#include "MILexer.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Twine.h"
#include <cassert>
#include <cctype>
#include <string>

Go to the source code of this file.

Functions

static Cursor skipWhitespace (Cursor C)
 Skip the leading whitespace characters and return the updated cursor.
 
static bool isNewlineChar (char C)
 
static Cursor skipComment (Cursor C)
 Skip a line comment and return the updated cursor.
 
static Cursor skipMachineOperandComment (Cursor C)
 Machine operands can have comments, enclosed between /* and ‍/.
 
static bool isIdentifierChar (char C)
 Return true if the given character satisfies the following regular expression: [-a-zA-Z$._0-9].
 
static std::string unescapeQuotedString (StringRef Value)
 Unescapes the given string value.
 
static Cursor lexStringConstant (Cursor C, ErrorCallbackType ErrorCallback)
 Lex a string constant using the following regular expression: "[^"]*".
 
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.
 
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 maybeLexExclaim (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 190 of file MILexer.cpp.

References llvm::StringSwitch< T, R >::Case(), llvm::StringSwitch< T, R >::Default(), llvm::MIToken::Identifier, llvm::MIToken::kw_addrspace, llvm::MIToken::kw_afn, llvm::MIToken::kw_align, llvm::MIToken::kw_arcp, llvm::MIToken::kw_basealign, llvm::MIToken::kw_bb_id, llvm::MIToken::kw_bbsections, llvm::MIToken::kw_bfloat, llvm::MIToken::kw_blockaddress, llvm::MIToken::kw_call_entry, llvm::MIToken::kw_call_frame_size, 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_llvm_def_aspace_cfa, 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_type, llvm::MIToken::kw_cfi_undefined, llvm::MIToken::kw_cfi_window_save, llvm::MIToken::kw_constant_pool, llvm::MIToken::kw_contract, llvm::MIToken::kw_custom, llvm::MIToken::kw_dbg_instr_ref, llvm::MIToken::kw_dead, llvm::MIToken::kw_debug_instr_number, llvm::MIToken::kw_debug_location, llvm::MIToken::kw_debug_use, llvm::MIToken::kw_def, llvm::MIToken::kw_dereferenceable, llvm::MIToken::kw_disjoint, llvm::MIToken::kw_distinct, llvm::MIToken::kw_double, llvm::MIToken::kw_early_clobber, llvm::MIToken::kw_ehfunclet_entry, llvm::MIToken::kw_exact, llvm::MIToken::kw_float, llvm::MIToken::kw_floatpred, llvm::MIToken::kw_fp128, llvm::MIToken::kw_frame_destroy, llvm::MIToken::kw_frame_setup, llvm::MIToken::kw_got, llvm::MIToken::kw_half, llvm::MIToken::kw_heap_alloc_marker, llvm::MIToken::kw_implicit, llvm::MIToken::kw_implicit_define, llvm::MIToken::kw_inlineasm_br_indirect_target, llvm::MIToken::kw_internal, llvm::MIToken::kw_intpred, llvm::MIToken::kw_intrinsic, llvm::MIToken::kw_invariant, llvm::MIToken::kw_ir_block_address_taken, 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_machine_block_address_taken, llvm::MIToken::kw_ninf, llvm::MIToken::kw_nnan, llvm::MIToken::kw_nneg, llvm::MIToken::kw_noconvergent, llvm::MIToken::kw_nofpexcept, llvm::MIToken::kw_non_temporal, llvm::MIToken::kw_nsw, llvm::MIToken::kw_nsz, llvm::MIToken::kw_nusw, llvm::MIToken::kw_nuw, llvm::MIToken::kw_pcsections, 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_shufflemask, 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_address, llvm::MIToken::kw_unknown_size, llvm::MIToken::kw_unpredictable, 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 608 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 maybeLexExclaim().

◆ 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 118 of file MILexer.cpp.

References llvm::CallingConv::C.

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

◆ isNewlineChar()

static bool isNewlineChar ( char  C)
static

Definition at line 91 of file MILexer.cpp.

References llvm::CallingConv::C.

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 441 of file MILexer.cpp.

References llvm::CallingConv::C, and isIdentifierChar().

Referenced by lexNamedVirtualRegister(), and maybeLexRegister().

◆ isValidHexFloatingPointPrefix()

static bool isValidHexFloatingPointPrefix ( char  C)
static

Definition at line 552 of file MILexer.cpp.

References llvm::CallingConv::C.

Referenced by maybeLexHexadecimalLiteral().

◆ lexFloatingPointLiteral()

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

Definition at line 556 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::FloatingPointLiteral, Range, 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 168 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::Error, isIdentifierChar(), lexStringConstant(), Range, llvm::MIToken::reset(), llvm::MIToken::setOwnedStringValue(), llvm::MIToken::setStringValue(), 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 445 of file MILexer.cpp.

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

Referenced by maybeLexRegister().

◆ lexStringConstant()

static Cursor lexStringConstant ( Cursor  C,
ErrorCallbackType  ErrorCallback 
)
static

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

Definition at line 154 of file MILexer.cpp.

References assert(), llvm::CallingConv::C, and isNewlineChar().

Referenced by lexName(), and maybeLexMCSymbol().

◆ lexVirtualRegister()

static Cursor lexVirtualRegister ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 429 of file MILexer.cpp.

References llvm::CallingConv::C, Range, llvm::MIToken::reset(), llvm::MIToken::setIntegerValue(), and llvm::MIToken::VirtualRegister.

Referenced by maybeLexRegister().

◆ maybeLexConstantPoolItem()

static Cursor maybeLexConstantPoolItem ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 388 of file MILexer.cpp.

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

◆ maybeLexEscapedIRValue()

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

Definition at line 695 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::Error, isNewlineChar(), llvm::MIToken::QuotedIRValue, Range, llvm::MIToken::reset(), and llvm::MIToken::setStringValue().

◆ maybeLexExclaim()

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

Definition at line 619 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::exclaim, getMetadataKeywordKind(), llvm::MIToken::isError(), isIdentifierChar(), llvm::MIToken::location(), Range, and llvm::MIToken::reset().

◆ maybeLexExternalSymbol()

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

Definition at line 497 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::ExternalSymbol, and lexName().

◆ maybeLexFixedStackObject()

static Cursor maybeLexFixedStackObject ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 384 of file MILexer.cpp.

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

◆ maybeLexGlobalValue()

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

Definition at line 480 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::GlobalValue, lexName(), llvm::MIToken::NamedGlobalValue, Range, llvm::MIToken::reset(), and llvm::MIToken::setIntegerValue().

◆ maybeLexHexadecimalLiteral()

static Cursor maybeLexHexadecimalLiteral ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 572 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::FloatingPointLiteral, llvm::MIToken::HexLiteral, isValidHexFloatingPointPrefix(), Range, and llvm::MIToken::reset().

◆ maybeLexIdentifier()

static Cursor maybeLexIdentifier ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 293 of file MILexer.cpp.

References llvm::CallingConv::C, getIdentifierKind(), isIdentifierChar(), Range, llvm::MIToken::reset(), and llvm::MIToken::setStringValue().

◆ maybeLexIndex()

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

Definition at line 340 of file MILexer.cpp.

References llvm::CallingConv::C, Range, llvm::MIToken::reset(), llvm::MIToken::setIntegerValue(), 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 353 of file MILexer.cpp.

References llvm::CallingConv::C, isIdentifierChar(), llvm::Number, Range, llvm::MIToken::reset(), llvm::MIToken::setIntegerValue(), llvm::MIToken::setStringValue(), and llvm::StringRef::size().

Referenced by maybeLexStackObject().

◆ maybeLexIRBlock()

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

Definition at line 401 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::IRBlock, lexName(), maybeLexIndex(), llvm::MIToken::NamedIRBlock, and llvm::StringRef::size().

◆ maybeLexIRValue()

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

Definition at line 411 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::IRValue, lexName(), maybeLexIndex(), llvm::MIToken::NamedIRValue, and llvm::StringRef::size().

◆ maybeLexJumpTableIndex()

static Cursor maybeLexJumpTableIndex ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 376 of file MILexer.cpp.

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

◆ maybeLexMachineBasicBlock()

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

Definition at line 305 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::Error, isIdentifierChar(), llvm::MIToken::MachineBasicBlock, llvm::MIToken::MachineBasicBlockLabel, llvm::Number, Range, llvm::MIToken::reset(), llvm::MIToken::setIntegerValue(), and llvm::MIToken::setStringValue().

◆ maybeLexMCSymbol()

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

Definition at line 505 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::Error, isIdentifierChar(), lexStringConstant(), llvm::MIToken::MCSymbol, llvm::MIToken::reset(), llvm::MIToken::setOwnedStringValue(), llvm::MIToken::setStringValue(), llvm::StringRef::size(), llvm::String, and unescapeQuotedString().

◆ maybeLexNewline()

static Cursor maybeLexNewline ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 686 of file MILexer.cpp.

References llvm::CallingConv::C, isNewlineChar(), llvm::MIToken::Newline, Range, and llvm::MIToken::reset().

◆ maybeLexNumericalLiteral()

static Cursor maybeLexNumericalLiteral ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 594 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::IntegerLiteral, lexFloatingPointLiteral(), Range, llvm::MIToken::reset(), and llvm::MIToken::setIntegerValue().

◆ maybeLexRegister()

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

Definition at line 455 of file MILexer.cpp.

References assert(), llvm::CallingConv::C, isRegisterChar(), lexNamedVirtualRegister(), lexVirtualRegister(), llvm::MIToken::NamedRegister, Range, llvm::MIToken::reset(), and llvm::MIToken::setStringValue().

◆ maybeLexStackObject()

static Cursor maybeLexStackObject ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 380 of file MILexer.cpp.

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

◆ maybeLexStringConstant()

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

Definition at line 421 of file MILexer.cpp.

References llvm::CallingConv::C, lexName(), and llvm::MIToken::StringConstant.

◆ maybeLexSubRegisterIndex()

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

Definition at line 392 of file MILexer.cpp.

References llvm::CallingConv::C, lexName(), llvm::StringRef::size(), and llvm::MIToken::SubRegisterIndex.

◆ maybeLexSymbol()

static Cursor maybeLexSymbol ( Cursor  C,
MIToken &  Token 
)
static

Definition at line 670 of file MILexer.cpp.

References llvm::CallingConv::C, llvm::MIToken::coloncolon, llvm::MIToken::Error, llvm::Length, Range, llvm::MIToken::reset(), and symbolToken().

◆ skipComment()

static Cursor skipComment ( Cursor  C)
static

Skip a line comment and return the updated cursor.

Definition at line 94 of file MILexer.cpp.

References llvm::CallingConv::C, and isNewlineChar().

◆ skipMachineOperandComment()

static Cursor skipMachineOperandComment ( Cursor  C)
static

Machine operands can have comments, enclosed between /* and ‍/.

This eats up all tokens, including / and *‍/.

Definition at line 104 of file MILexer.cpp.

References llvm::CallingConv::C.

◆ skipWhitespace()

static Cursor skipWhitespace ( Cursor  C)
static

Skip the leading whitespace characters and return the updated cursor.

Definition at line 85 of file MILexer.cpp.

References llvm::CallingConv::C.

◆ symbolToken()

static MIToken::TokenKind symbolToken ( char  C)
static

Definition at line 639 of file MILexer.cpp.

References llvm::CallingConv::C, 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 126 of file MILexer.cpp.

References assert(), and llvm::CallingConv::C.

Referenced by lexName(), and maybeLexMCSymbol().

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