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73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
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//===- llvm/Remarks/RemarkStreamer.cpp - Remark Streamer -*- C++ --------*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the implementation of the main remark streamer.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Remarks/RemarkStreamer.h"
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#include "llvm/Support/CommandLine.h"
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using namespace llvm;
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using namespace llvm::remarks;
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static cl::opt<cl::boolOrDefault> EnableRemarksSection(
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"remarks-section",
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cl::desc(
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"Emit a section containing remark diagnostics metadata. By default, "
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"this is enabled for the following formats: yaml-strtab, bitstream."),
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cl::init(cl::BOU_UNSET), cl::Hidden);
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RemarkStreamer::RemarkStreamer(
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std::unique_ptr<remarks::RemarkSerializer> RemarkSerializer,
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Optional<StringRef> FilenameIn)
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: PassFilter(), RemarkSerializer(std::move(RemarkSerializer)),
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Filename(FilenameIn ? Optional<std::string>(FilenameIn->str()) : None) {}
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Error RemarkStreamer::setFilter(StringRef Filter) {
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Regex R = Regex(Filter);
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std::string RegexError;
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if (!R.isValid(RegexError))
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return createStringError(std::make_error_code(std::errc::invalid_argument),
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RegexError.data());
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PassFilter = std::move(R);
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return Error::success();
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}
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bool RemarkStreamer::matchesFilter(StringRef Str) {
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if (PassFilter)
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return PassFilter->match(Str);
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// No filter means all strings pass.
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return true;
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}
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bool RemarkStreamer::needsSection() const {
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if (EnableRemarksSection == cl::BOU_TRUE)
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return true;
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if (EnableRemarksSection == cl::BOU_FALSE)
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return false;
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assert(EnableRemarksSection == cl::BOU_UNSET);
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// We only need a section if we're in separate mode.
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if (RemarkSerializer->Mode != remarks::SerializerMode::Separate)
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return false;
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// Only some formats need a section:
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// * bitstream
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// * yaml-strtab
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switch (RemarkSerializer->SerializerFormat) {
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case remarks::Format::YAMLStrTab:
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case remarks::Format::Bitstream:
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return true;
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default:
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return false;
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}
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}
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