Centralize the handling of unique ids for temporary labels.

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

diff --git a/lib/CodeGen/AsmPrinter/DwarfFile.h b/lib/CodeGen/AsmPrinter/DwarfFile.h
index 68ac530fd35a9cb03a07d6f2bdf3c93d7d1d91e6..c9de6665b01687dfc13412a9178805b5704e810f 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfFile.h
+++ b/lib/CodeGen/AsmPrinter/DwarfFile.h
@@ -7,26 +7,29 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef CODEGEN_ASMPRINTER_DWARFFILE_H__
-#define CODEGEN_ASMPRINTER_DWARFFILE_H__
+#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 <vector>
-#include <string>
 #include <memory>
+#include <string>
+#include <vector>
 
 namespace llvm {
 class AsmPrinter;
+class DbgVariable;
 class DwarfUnit;
 class DIEAbbrev;
 class MCSymbol;
 class DIE;
+class DISubprogram;
+class LexicalScope;
 class StringRef;
 class DwarfDebug;
 class MCSection;
@@ -43,17 +46,21 @@ class DwarfFile {
   // A pointer to all units in the section.
   SmallVector<std::unique_ptr<DwarfUnit>, 1> CUs;
 
-  // Collection of strings for this unit and assorted symbols.
-  // A String->Symbol mapping of strings used by indirect
-  // references.
-  typedef StringMap<std::pair<MCSymbol *, unsigned>, BumpPtrAllocator &>
-  StrPool;
-  StrPool StringPool;
-  unsigned NextStringPoolNumber;
-  std::string StringPref;
+  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 *> MDTypeNodeToDieMap;
 
 public:
-  DwarfFile(AsmPrinter *AP, const char *Pref, BumpPtrAllocator &DA);
+  DwarfFile(AsmPrinter *AP, StringRef Pref, BumpPtrAllocator &DA);
 
   ~DwarfFile();
 
@@ -73,29 +80,35 @@ public:
 
   /// \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 *);
 
   /// \brief Emit all of the strings to the section given.
   void emitStrings(const MCSection *StrSection,
-                   const MCSection *OffsetSection = nullptr,
-                   const MCSymbol *StrSecSym = nullptr);
+                   const MCSection *OffsetSection = nullptr);
 
-  /// \brief Returns the entry into the start of the pool.
-  MCSymbol *getStringPoolSym();
+  /// \brief Returns the string pool.
+  DwarfStringPool &getStringPool() { return StrPool; }
 
-  /// \brief Returns an entry into the string pool with the given
-  /// string text.
-  MCSymbol *getStringPoolEntry(StringRef Str);
+  /// \returns false if the variable was merged with a previous one.
+  bool addScopeVariable(LexicalScope *LS, DbgVariable *Var);
 
-  /// \brief Returns the index into the string pool with the given
-  /// string text.
-  unsigned getStringPoolIndex(StringRef Str);
+  DenseMap<LexicalScope *, SmallVector<DbgVariable *, 8>> &getScopeVariables() {
+    return ScopeVariables;
+  }
 
-  /// \brief Returns the string pool.
-  StrPool *getStringPool() { return &StringPool; }
+  DenseMap<const MDNode *, DIE *> &getAbstractSPDies() {
+    return AbstractSPDies;
+  }
+
+  void insertDIE(const MDNode *TypeMD, DIE *Die) {
+    MDTypeNodeToDieMap.insert(std::make_pair(TypeMD, Die));
+  }
+  DIE *getDIE(const MDNode *TypeMD) {
+    return MDTypeNodeToDieMap.lookup(TypeMD);
+  }
 };
 }
 #endif