63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
|
//===- MCAsmParserExtension.cpp - Asm Parser Hooks ------------------------===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "llvm/MC/MCParser/MCAsmParserExtension.h"
|
||
|
|
#include "llvm/MC/MCContext.h"
|
||
|
|
#include "llvm/MC/MCStreamer.h"
|
||
|
|
|
||
|
|
using namespace llvm;
|
||
|
|
|
||
|
|
MCAsmParserExtension::MCAsmParserExtension() = default;
|
||
|
|
|
||
|
|
MCAsmParserExtension::~MCAsmParserExtension() = default;
|
||
|
|
|
||
|
|
void MCAsmParserExtension::Initialize(MCAsmParser &Parser) {
|
||
|
|
this->Parser = &Parser;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// ParseDirectiveCGProfile
|
||
|
|
/// ::= .cg_profile identifier, identifier, <number>
|
||
|
|
bool MCAsmParserExtension::ParseDirectiveCGProfile(StringRef, SMLoc) {
|
||
|
|
StringRef From;
|
||
|
|
SMLoc FromLoc = getLexer().getLoc();
|
||
|
|
if (getParser().parseIdentifier(From))
|
||
|
|
return TokError("expected identifier in directive");
|
||
|
|
|
||
|
|
if (getLexer().isNot(AsmToken::Comma))
|
||
|
|
return TokError("expected a comma");
|
||
|
|
Lex();
|
||
|
|
|
||
|
|
StringRef To;
|
||
|
|
SMLoc ToLoc = getLexer().getLoc();
|
||
|
|
if (getParser().parseIdentifier(To))
|
||
|
|
return TokError("expected identifier in directive");
|
||
|
|
|
||
|
|
if (getLexer().isNot(AsmToken::Comma))
|
||
|
|
return TokError("expected a comma");
|
||
|
|
Lex();
|
||
|
|
|
||
|
|
int64_t Count;
|
||
|
|
if (getParser().parseIntToken(
|
||
|
|
Count, "expected integer count in '.cg_profile' directive"))
|
||
|
|
return true;
|
||
|
|
|
||
|
|
if (getLexer().isNot(AsmToken::EndOfStatement))
|
||
|
|
return TokError("unexpected token in directive");
|
||
|
|
|
||
|
|
MCSymbol *FromSym = getContext().getOrCreateSymbol(From);
|
||
|
|
MCSymbol *ToSym = getContext().getOrCreateSymbol(To);
|
||
|
|
|
||
|
|
getStreamer().emitCGProfileEntry(
|
||
|
|
MCSymbolRefExpr::create(FromSym, MCSymbolRefExpr::VK_None, getContext(),
|
||
|
|
FromLoc),
|
||
|
|
MCSymbolRefExpr::create(ToSym, MCSymbolRefExpr::VK_None, getContext(),
|
||
|
|
ToLoc),
|
||
|
|
Count);
|
||
|
|
return false;
|
||
|
|
}
|