LLVM 17.0.0git
MCAsmParserExtension.cpp
Go to the documentation of this file.
1//===- MCAsmParserExtension.cpp - Asm Parser Hooks ------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
10#include "llvm/MC/MCContext.h"
11#include "llvm/MC/MCExpr.h"
13#include "llvm/MC/MCStreamer.h"
14
15using namespace llvm;
16
18
20
22 this->Parser = &Parser;
23}
24
25/// ParseDirectiveCGProfile
26/// ::= .cg_profile identifier, identifier, <number>
29 SMLoc FromLoc = getLexer().getLoc();
30 if (getParser().parseIdentifier(From))
31 return TokError("expected identifier in directive");
32
34 return TokError("expected a comma");
35 Lex();
36
37 StringRef To;
38 SMLoc ToLoc = getLexer().getLoc();
39 if (getParser().parseIdentifier(To))
40 return TokError("expected identifier in directive");
41
43 return TokError("expected a comma");
44 Lex();
45
46 int64_t Count;
47 if (getParser().parseIntToken(
48 Count, "expected integer count in '.cg_profile' directive"))
49 return true;
50
52 return TokError("unexpected token in directive");
53
56
59 FromLoc),
61 ToLoc),
62 Count);
63 return false;
64}
static bool isNot(const MachineRegisterInfo &MRI, const MachineInstr &MI)
BlockVerifier::State From
SMLoc getLoc() const
Get the current source location.
Definition: MCAsmLexer.cpp:22
virtual void Initialize(MCAsmParser &Parser)
Initialize the extension for parsing using the given Parser.
bool TokError(const Twine &Msg)
bool ParseDirectiveCGProfile(StringRef, SMLoc)
ParseDirectiveCGProfile ::= .cg_profile identifier, identifier, <number>
Generic assembler parser interface, for use by target specific assembly parsers.
Definition: MCAsmParser.h:123
MCSymbol * getOrCreateSymbol(const Twine &Name)
Lookup the symbol inside with the specified Name.
Definition: MCContext.cpp:201
virtual void emitCGProfileEntry(const MCSymbolRefExpr *From, const MCSymbolRefExpr *To, uint64_t Count)
Definition: MCStreamer.cpp:811
static const MCSymbolRefExpr * create(const MCSymbol *Symbol, MCContext &Ctx)
Definition: MCExpr.h:386
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:41
Represents a location in source code.
Definition: SMLoc.h:23
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18