vendor/llvm/llvm-trunk-r301939

1 files changed, 103 insertions, 0 deletions

diff --git a/include/llvm/DebugInfo/CodeView/ModuleDebugInlineeLinesFragment.h b/include/llvm/DebugInfo/CodeView/ModuleDebugInlineeLinesFragment.h
new file mode 100644
index 0000000000000..177367c111c30
--- /dev/null
+++ b/include/llvm/DebugInfo/CodeView/ModuleDebugInlineeLinesFragment.h
@@ -0,0 +1,103 @@
+//===- ModuleDebugInlineeLinesFragment.h ------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_CODEVIEW_MODULEDEBUGINLINEELINESFRAGMENT_H
+#define LLVM_DEBUGINFO_CODEVIEW_MODULEDEBUGINLINEELINESFRAGMENT_H
+
+#include "llvm/DebugInfo/CodeView/Line.h"
+#include "llvm/DebugInfo/CodeView/ModuleDebugFragment.h"
+#include "llvm/Support/BinaryStreamArray.h"
+#include "llvm/Support/BinaryStreamReader.h"
+#include "llvm/Support/Error.h"
+
+namespace llvm {
+namespace codeview {
+
+class ModuleDebugInlineeLineFragmentRef;
+
+enum class InlineeLinesSignature : uint32_t {
+  Normal,    // CV_INLINEE_SOURCE_LINE_SIGNATURE
+  ExtraFiles // CV_INLINEE_SOURCE_LINE_SIGNATURE_EX
+};
+
+struct InlineeSourceLineHeader {
+  TypeIndex Inlinee;                  // ID of the function that was inlined.
+  support::ulittle32_t FileID;        // Offset into FileChecksums subsection.
+  support::ulittle32_t SourceLineNum; // First line of inlined code.
+                                      // If extra files present:
+                                      //   ulittle32_t ExtraFileCount;
+                                      //   ulittle32_t Files[];
+};
+
+struct InlineeSourceLine {
+  const InlineeSourceLineHeader *Header;
+  FixedStreamArray<support::ulittle32_t> ExtraFiles;
+};
+}
+
+template <> struct VarStreamArrayExtractor<codeview::InlineeSourceLine> {
+  typedef codeview::ModuleDebugInlineeLineFragmentRef ContextType;
+
+  static Error extract(BinaryStreamRef Stream, uint32_t &Len,
+                       codeview::InlineeSourceLine &Item,
+                       ContextType *Fragment);
+};
+
+namespace codeview {
+class ModuleDebugInlineeLineFragmentRef final : public ModuleDebugFragmentRef {
+  typedef VarStreamArray<InlineeSourceLine> LinesArray;
+  typedef LinesArray::Iterator Iterator;
+
+public:
+  ModuleDebugInlineeLineFragmentRef();
+
+  static bool classof(const ModuleDebugFragmentRef *S) {
+    return S->kind() == ModuleDebugFragmentKind::InlineeLines;
+  }
+
+  Error initialize(BinaryStreamReader Reader);
+  bool hasExtraFiles() const;
+
+  Iterator begin() const { return Lines.begin(); }
+  Iterator end() const { return Lines.end(); }
+
+private:
+  InlineeLinesSignature Signature;
+  VarStreamArray<InlineeSourceLine> Lines;
+};
+
+class ModuleDebugInlineeLineFragment final : public ModuleDebugFragment {
+public:
+  explicit ModuleDebugInlineeLineFragment(bool HasExtraFiles);
+
+  static bool classof(const ModuleDebugFragment *S) {
+    return S->kind() == ModuleDebugFragmentKind::InlineeLines;
+  }
+
+  Error commit(BinaryStreamWriter &Writer) override;
+  uint32_t calculateSerializedLength() override;
+
+  void addInlineSite(TypeIndex FuncId, uint32_t FileOffset,
+                     uint32_t SourceLine);
+  void addExtraFile(uint32_t FileOffset);
+
+private:
+  bool HasExtraFiles = false;
+  uint32_t ExtraFileCount = 0;
+
+  struct Entry {
+    std::vector<support::ulittle32_t> ExtraFiles;
+    InlineeSourceLineHeader Header;
+  };
+  std::vector<Entry> Entries;
+};
+}
+}
+
+#endif