1 files changed, 117 insertions, 0 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h
new file mode 100644
index 000000000000..d4d2ed277274
--- /dev/null
+++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h
@@ -0,0 +1,117 @@
+//===-- llvm/CodeGen/DwarfFile.h - Dwarf Debug Framework -------*- C++ -*--===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFFILE_H
+#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFFILE_H
+
+#include "AddressPool.h"
+#include "DwarfStringPool.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/CodeGen/DIE.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/Support/Allocator.h"
+#include <memory>
+
+namespace llvm {
+class AsmPrinter;
+class DbgVariable;
+class DwarfCompileUnit;
+class DwarfUnit;
+class DIEAbbrev;
+class MCSymbol;
+class DIE;
+class LexicalScope;
+class StringRef;
+class DwarfDebug;
+class MCSection;
+class MDNode;
+class DwarfFile {
+  // Target of Dwarf emission, used for sizing of abbreviations.
+  AsmPrinter *Asm;
+
+  BumpPtrAllocator AbbrevAllocator;
+
+  // Used to uniquely define abbreviations.
+  DIEAbbrevSet Abbrevs;
+
+  // A pointer to all units in the section.
+  SmallVector<std::unique_ptr<DwarfCompileUnit>, 1> CUs;
+
+  DwarfStringPool StrPool;
+
+  // Collection of dbg variables of a scope.
+  DenseMap<LexicalScope *, SmallVector<DbgVariable *, 8>> ScopeVariables;
+
+  // Collection of abstract subprogram DIEs.
+  DenseMap<const MDNode *, DIE *> AbstractSPDies;
+
+  /// Maps MDNodes for type system with the corresponding DIEs. These DIEs can
+  /// be shared across CUs, that is why we keep the map here instead
+  /// of in DwarfCompileUnit.
+  DenseMap<const MDNode *, DIE *> DITypeNodeToDieMap;
+
+public:
+  DwarfFile(AsmPrinter *AP, StringRef Pref, BumpPtrAllocator &DA);
+
+  const SmallVectorImpl<std::unique_ptr<DwarfCompileUnit>> &getUnits() {
+    return CUs;
+  }
+
+  /// \brief Compute the size and offset of a DIE given an incoming Offset.
+  unsigned computeSizeAndOffset(DIE &Die, unsigned Offset);
+
+  /// \brief Compute the size and offset of all the DIEs.
+  void computeSizeAndOffsets();
+
+  /// \brief Compute the size and offset of all the DIEs in the given unit.
+  /// \returns The size of the root DIE.
+  unsigned computeSizeAndOffsetsForUnit(DwarfUnit *TheU);
+
+  /// \brief Add a unit to the list of CUs.
+  void addUnit(std::unique_ptr<DwarfCompileUnit> U);
+
+  /// \brief Emit all of the units to the section listed with the given
+  /// abbreviation section.
+  void emitUnits(bool UseOffsets);
+
+  /// \brief Emit the given unit to its section.
+  void emitUnit(DwarfUnit *U, bool UseOffsets);
+
+  /// \brief Emit a set of abbreviations to the specific section.
+  void emitAbbrevs(MCSection *);
+
+  /// \brief Emit all of the strings to the section given.
+  void emitStrings(MCSection *StrSection, MCSection *OffsetSection = nullptr);
+
+  /// \brief Returns the string pool.
+  DwarfStringPool &getStringPool() { return StrPool; }
+
+  /// \returns false if the variable was merged with a previous one.
+  bool addScopeVariable(LexicalScope *LS, DbgVariable *Var);
+
+  DenseMap<LexicalScope *, SmallVector<DbgVariable *, 8>> &getScopeVariables() {
+    return ScopeVariables;
+  }
+
+  DenseMap<const MDNode *, DIE *> &getAbstractSPDies() {
+    return AbstractSPDies;
+  }
+
+  void insertDIE(const MDNode *TypeMD, DIE *Die) {
+    DITypeNodeToDieMap.insert(std::make_pair(TypeMD, Die));
+  }
+  DIE *getDIE(const MDNode *TypeMD) {
+    return DITypeNodeToDieMap.lookup(TypeMD);
+  }
+};
+}
+#endif