Vendor import of llvm RELEASE_350/final tag r216957 (effectively, 3.5.0 release):

https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_350/final@216957

1 files changed, 84 insertions, 0 deletions

diff --git a/lib/CodeGen/AsmPrinter/DwarfFile.h b/lib/CodeGen/AsmPrinter/DwarfFile.h
new file mode 100644
index 0000000..3985eb2
--- /dev/null
+++ b/lib/CodeGen/AsmPrinter/DwarfFile.h
@@ -0,0 +1,84 @@
+//===-- 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 CODEGEN_ASMPRINTER_DWARFFILE_H__
+#define CODEGEN_ASMPRINTER_DWARFFILE_H__
+
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/Support/Allocator.h"
+#include "AddressPool.h"
+#include "DwarfStringPool.h"
+
+#include <vector>
+#include <string>
+#include <memory>
+
+namespace llvm {
+class AsmPrinter;
+class DwarfUnit;
+class DIEAbbrev;
+class MCSymbol;
+class DIE;
+class StringRef;
+class DwarfDebug;
+class MCSection;
+class DwarfFile {
+  // Target of Dwarf emission, used for sizing of abbreviations.
+  AsmPrinter *Asm;
+
+  // Used to uniquely define abbreviations.
+  FoldingSet<DIEAbbrev> AbbreviationsSet;
+
+  // A list of all the unique abbreviations in use.
+  std::vector<DIEAbbrev *> Abbreviations;
+
+  // A pointer to all units in the section.
+  SmallVector<std::unique_ptr<DwarfUnit>, 1> CUs;
+
+  DwarfStringPool StrPool;
+
+public:
+  DwarfFile(AsmPrinter *AP, StringRef Pref, BumpPtrAllocator &DA);
+
+  ~DwarfFile();
+
+  const SmallVectorImpl<std::unique_ptr<DwarfUnit>> &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 Define a unique number for the abbreviation.
+  void assignAbbrevNumber(DIEAbbrev &Abbrev);
+
+  /// \brief Add a unit to the list of CUs.
+  void addUnit(std::unique_ptr<DwarfUnit> U);
+
+  /// \brief Emit all of the units to the section listed with the given
+  /// abbreviation section.
+  void emitUnits(DwarfDebug *DD, const MCSymbol *ASectionSym);
+
+  /// \brief Emit a set of abbreviations to the specific section.
+  void emitAbbrevs(const MCSection *);
+
+  /// \brief Emit all of the strings to the section given.
+  void emitStrings(const MCSection *StrSection,
+                   const MCSection *OffsetSection = nullptr,
+                   const MCSymbol *StrSecSym = nullptr);
+
+  /// \brief Returns the string pool.
+  DwarfStringPool &getStringPool() { return StrPool; }
+};
+}
+#endif