Revert r354244 "[DAGCombiner] Eliminate dead stores to stack."
[llvm-complete.git] / include / llvm / DebugInfo / CodeView / DebugInlineeLinesSubsection.h
blob1ca2bd0296959945a0f466658e9fd049795b4885
1 //===- DebugInlineeLinesSubsection.h ----------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
9 #ifndef LLVM_DEBUGINFO_CODEVIEW_DEBUGINLINEELINESSUBSECTION_H
10 #define LLVM_DEBUGINFO_CODEVIEW_DEBUGINLINEELINESSUBSECTION_H
12 #include "llvm/ADT/StringRef.h"
13 #include "llvm/DebugInfo/CodeView/CodeView.h"
14 #include "llvm/DebugInfo/CodeView/DebugSubsection.h"
15 #include "llvm/DebugInfo/CodeView/Line.h"
16 #include "llvm/DebugInfo/CodeView/TypeIndex.h"
17 #include "llvm/Support/BinaryStreamArray.h"
18 #include "llvm/Support/BinaryStreamReader.h"
19 #include "llvm/Support/BinaryStreamRef.h"
20 #include "llvm/Support/Endian.h"
21 #include "llvm/Support/Error.h"
22 #include <cstdint>
23 #include <vector>
25 namespace llvm {
27 namespace codeview {
29 class DebugChecksumsSubsection;
31 enum class InlineeLinesSignature : uint32_t {
32 Normal, // CV_INLINEE_SOURCE_LINE_SIGNATURE
33 ExtraFiles // CV_INLINEE_SOURCE_LINE_SIGNATURE_EX
36 struct InlineeSourceLineHeader {
37 TypeIndex Inlinee; // ID of the function that was inlined.
38 support::ulittle32_t FileID; // Offset into FileChecksums subsection.
39 support::ulittle32_t SourceLineNum; // First line of inlined code.
40 // If extra files present:
41 // ulittle32_t ExtraFileCount;
42 // ulittle32_t Files[];
45 struct InlineeSourceLine {
46 const InlineeSourceLineHeader *Header;
47 FixedStreamArray<support::ulittle32_t> ExtraFiles;
50 } // end namespace codeview
52 template <> struct VarStreamArrayExtractor<codeview::InlineeSourceLine> {
53 Error operator()(BinaryStreamRef Stream, uint32_t &Len,
54 codeview::InlineeSourceLine &Item);
56 bool HasExtraFiles = false;
59 namespace codeview {
61 class DebugInlineeLinesSubsectionRef final : public DebugSubsectionRef {
62 using LinesArray = VarStreamArray<InlineeSourceLine>;
63 using Iterator = LinesArray::Iterator;
65 public:
66 DebugInlineeLinesSubsectionRef();
68 static bool classof(const DebugSubsectionRef *S) {
69 return S->kind() == DebugSubsectionKind::InlineeLines;
72 Error initialize(BinaryStreamReader Reader);
73 bool hasExtraFiles() const;
75 Iterator begin() const { return Lines.begin(); }
76 Iterator end() const { return Lines.end(); }
78 private:
79 InlineeLinesSignature Signature;
80 VarStreamArray<InlineeSourceLine> Lines;
83 class DebugInlineeLinesSubsection final : public DebugSubsection {
84 public:
85 struct Entry {
86 std::vector<support::ulittle32_t> ExtraFiles;
87 InlineeSourceLineHeader Header;
90 DebugInlineeLinesSubsection(DebugChecksumsSubsection &Checksums,
91 bool HasExtraFiles = false);
93 static bool classof(const DebugSubsection *S) {
94 return S->kind() == DebugSubsectionKind::InlineeLines;
97 Error commit(BinaryStreamWriter &Writer) const override;
98 uint32_t calculateSerializedSize() const override;
100 void addInlineSite(TypeIndex FuncId, StringRef FileName, uint32_t SourceLine);
101 void addExtraFile(StringRef FileName);
103 bool hasExtraFiles() const { return HasExtraFiles; }
104 void setHasExtraFiles(bool Has) { HasExtraFiles = Has; }
106 std::vector<Entry>::const_iterator begin() const { return Entries.begin(); }
107 std::vector<Entry>::const_iterator end() const { return Entries.end(); }
109 private:
110 DebugChecksumsSubsection &Checksums;
111 bool HasExtraFiles = false;
112 uint32_t ExtraFileCount = 0;
113 std::vector<Entry> Entries;
116 } // end namespace codeview
118 } // end namespace llvm
120 #endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGINLINEELINESSUBSECTION_H