Merging r257977:

[oota-llvm.git] / lib / CodeGen / AsmPrinter / DwarfFile.h

diff --git a/lib/CodeGen/AsmPrinter/DwarfFile.h b/lib/CodeGen/AsmPrinter/DwarfFile.h
index 6cc3a194c0db29cd6a46fa7f2461d76164d6bf3a..8402027edd6ff34924cf50350120a3edce9c2764 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfFile.h
+++ b/lib/CodeGen/AsmPrinter/DwarfFile.h
@@ -10,31 +10,35 @@
 #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/Support/Allocator.h"
-#include "AddressPool.h"
-#include "DwarfStringPool.h"
-
-#include <vector>
-#include <string>
 #include <memory>
+#include <string>
+#include <vector>
 
 namespace llvm {
 class AsmPrinter;
+class DbgVariable;
 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.
   FoldingSet<DIEAbbrev> AbbreviationsSet;
 
@@ -46,6 +50,17 @@ class DwarfFile {
 
   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);
 
@@ -59,26 +74,45 @@ public:
   /// \brief Compute the size and offset of all the DIEs.
   void computeSizeAndOffsets();
 
-  /// \brief Define a unique number for the abbreviation.
-  void assignAbbrevNumber(DIEAbbrev &Abbrev);
+  /// Define a unique number for the abbreviation.
+  ///
+  /// Compute the abbreviation for \c Die, look up its unique number, and
+  /// return a reference to it in the uniquing table.
+  DIEAbbrev &assignAbbrevNumber(DIE &Die);
 
   /// \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);
+  void emitUnits(bool UseOffsets);
 
   /// \brief Emit a set of abbreviations to the specific section.
-  void emitAbbrevs(const MCSection *);
+  void emitAbbrevs(MCSection *);
 
   /// \brief Emit all of the strings to the section given.
-  void emitStrings(const MCSection *StrSection,
-                   const MCSection *OffsetSection = nullptr,
-                   const MCSymbol *StrSecSym = nullptr);
+  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