1f34d68c4f
Background: The yaml-strtab format looks just like the yaml format, except that the values in the key/value pairs of the remarks are deduplicated and replaced by indices into a string table (see removed test cases for examples). The motivation behind this format was to reduce size of the remarks files. However, it was quickly superseded by the bitstream format. Therefore, remove the yaml-strtab format, as it doesn't have a good usecase anymore: - It isn't particularly efficient - It isn't human-readable - It isn't straightforward to parse in external tools that can't use the remarks library. We don't even support it in opt-viewer. llvm-remarkutil is also missing options to parse/convert yaml-strtab, so the chance that anyone is actually using this format is low.
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
//===- 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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#include <optional>
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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: 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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std::optional<StringRef> FilenameIn)
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: RemarkSerializer(std::move(RemarkSerializer)),
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Filename(FilenameIn ? std::optional<std::string>(FilenameIn->str())
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: std::nullopt) {}
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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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switch (RemarkSerializer->SerializerFormat) {
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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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