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//===- llvm/IR/RemarkStreamer.cpp - Remark Streamer -*- C++ -------------*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file contains the implementation of the remark outputting as part of
// LLVMContext.
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/RemarkStreamer.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
using namespace llvm;
RemarkStreamer::RemarkStreamer(StringRef Filename,
std::unique_ptr<remarks::Serializer> Serializer)
: Filename(Filename), PassFilter(), Serializer(std::move(Serializer)) {
assert(!Filename.empty() && "This needs to be a real filename.");
}
Error RemarkStreamer::setFilter(StringRef Filter) {
Regex R = Regex(Filter);
std::string RegexError;
if (!R.isValid(RegexError))
return createStringError(std::make_error_code(std::errc::invalid_argument),
RegexError.data());
PassFilter = std::move(R);
return Error::success();
}
/// DiagnosticKind -> remarks::Type
static remarks::Type toRemarkType(enum DiagnosticKind Kind) {
switch (Kind) {
default:
return remarks::Type::Unknown;
case DK_OptimizationRemark:
case DK_MachineOptimizationRemark:
return remarks::Type::Passed;
case DK_OptimizationRemarkMissed:
case DK_MachineOptimizationRemarkMissed:
return remarks::Type::Missed;
case DK_OptimizationRemarkAnalysis:
case DK_MachineOptimizationRemarkAnalysis:
return remarks::Type::Analysis;
case DK_OptimizationRemarkAnalysisFPCommute:
return remarks::Type::AnalysisFPCommute;
case DK_OptimizationRemarkAnalysisAliasing:
return remarks::Type::AnalysisAliasing;
case DK_OptimizationFailure:
return remarks::Type::Failure;
}
}
/// DiagnosticLocation -> remarks::RemarkLocation.
static Optional<remarks::RemarkLocation>
toRemarkLocation(const DiagnosticLocation &DL) {
if (!DL.isValid())
return None;
StringRef File = DL.getRelativePath();
unsigned Line = DL.getLine();
unsigned Col = DL.getColumn();
return remarks::RemarkLocation{File, Line, Col};
}
/// LLVM Diagnostic -> Remark
remarks::Remark
RemarkStreamer::toRemark(const DiagnosticInfoOptimizationBase &Diag) {
// Re-use the buffer.
TmpArgs.clear();
remarks::Remark R; // The result.
R.RemarkType = toRemarkType(static_cast<DiagnosticKind>(Diag.getKind()));
R.PassName = Diag.getPassName();
R.RemarkName = Diag.getRemarkName();
R.FunctionName =
GlobalValue::dropLLVMManglingEscape(Diag.getFunction().getName());
R.Loc = toRemarkLocation(Diag.getLocation());
R.Hotness = Diag.getHotness();
// Use TmpArgs to build the list of arguments and re-use the memory allocated
// from previous remark conversions.
for (const DiagnosticInfoOptimizationBase::Argument &Arg : Diag.getArgs()) {
TmpArgs.emplace_back();
TmpArgs.back().Key = Arg.Key;
TmpArgs.back().Val = Arg.Val;
TmpArgs.back().Loc = toRemarkLocation(Arg.Loc);
}
R.Args = TmpArgs; // This is valid until the next call to this function.
return R;
}
void RemarkStreamer::emit(const DiagnosticInfoOptimizationBase &Diag) {
if (Optional<Regex> &Filter = PassFilter)
if (!Filter->match(Diag.getPassName()))
return;
// First, convert the diagnostic to a remark.
remarks::Remark R = toRemark(Diag);
// Then, emit the remark through the serializer.
Serializer->emit(R);
}
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