blob: 53531b1853e382298d472ec5d421bb0885dcec96 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===- llvm/Remarks/RemarkStreamer.h ----------------------------*- 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 declares the main interface for streaming remarks.
//
// This is used to stream any llvm::remarks::Remark to an open file taking
// advantage of all the serialization capabilities developed for remarks (e.g.
// metadata in a section, bitstream format, etc.).
//
// Typically, a specialized remark emitter should hold a reference to the main
// remark streamer set up in the LLVMContext, and should convert specialized
// diagnostics to llvm::remarks::Remark objects as they get emitted.
//
// Specialized remark emitters can be components like:
// * Remarks from LLVM (M)IR passes
// * Remarks from the frontend
// * Remarks from an intermediate IR
//
// This allows for composition between specialized remark emitters throughout
// the compilation pipeline, that end up in the same file, using the same format
// and serialization techniques.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_REMARKS_REMARKSTREAMER_H
#define LLVM_REMARKS_REMARKSTREAMER_H
#include "llvm/ADT/Optional.h"
#include "llvm/Remarks/RemarkSerializer.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/Regex.h"
#include "llvm/Support/raw_ostream.h"
#include <memory>
namespace llvm {
namespace remarks {
class RemarkStreamer final {
/// The regex used to filter remarks based on the passes that emit them.
Optional<Regex> PassFilter;
/// The object used to serialize the remarks to a specific format.
std::unique_ptr<remarks::RemarkSerializer> RemarkSerializer;
/// The filename that the remark diagnostics are emitted to.
const Optional<std::string> Filename;
public:
RemarkStreamer(std::unique_ptr<remarks::RemarkSerializer> RemarkSerializer,
Optional<StringRef> Filename = None);
/// Return the filename that the remark diagnostics are emitted to.
Optional<StringRef> getFilename() const {
return Filename ? Optional<StringRef>(*Filename) : None;
}
/// Return stream that the remark diagnostics are emitted to.
raw_ostream &getStream() { return RemarkSerializer->OS; }
/// Return the serializer used for this stream.
remarks::RemarkSerializer &getSerializer() { return *RemarkSerializer; }
/// Set a pass filter based on a regex \p Filter.
/// Returns an error if the regex is invalid.
Error setFilter(StringRef Filter);
/// Check wether the string matches the filter.
bool matchesFilter(StringRef Str);
/// Check if the remarks also need to have associated metadata in a section.
bool needsSection() const;
};
} // end namespace remarks
} // end namespace llvm
#endif // LLVM_REMARKS_REMARKSTREAMER_H
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
|
