Add the support code to enable the dwarf accelerator tables. Upcoming patches

to fix the types section (all types, not just global types), and testcases.

The code to do the final emission is disabled by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143923 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 0 deletions

diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
index efab32e..b994ce3 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
@@ -64,6 +64,13 @@ class CompileUnit {
   ///
   StringMap<DIE*> GlobalTypes;
 
+  /// AccelNames - A map of names for the name accelerator table.
+  ///
+  StringMap<DIE*> AccelNames;
+  StringMap<std::vector<DIE*> > AccelObjC;
+  StringMap<DIE*> AccelNamespace;
+  StringMap<DIE*> AccelTypes;
+
   /// DIEBlocks - A list of all the DIEBlocks in use.
   std::vector<DIEBlock *> DIEBlocks;
 
@@ -82,6 +89,13 @@ public:
   const StringMap<DIE*> &getGlobals()     const { return Globals; }
   const StringMap<DIE*> &getGlobalTypes() const { return GlobalTypes; }
 
+  const StringMap<DIE*> &getAccelNames() const { return AccelNames; }
+  const StringMap<std::vector<DIE*> > &getAccelObjC() const {
+    return AccelObjC;
+  }
+  const StringMap<DIE*> &getAccelNamespace() const { return AccelNamespace; }
+  const StringMap<DIE*> &getAccelTypes() const { return AccelTypes; }
+  
   /// hasContent - Return true if this compile unit has something to write out.
   ///
   bool hasContent() const { return !CUDie->getChildren().empty(); }
@@ -94,6 +108,20 @@ public:
   ///
   void addGlobalType(DIType Ty);
 
+
+  /// addAccelName - Add a new name to the name accelerator table.
+  void addAccelName(StringRef Name, DIE *Die) { AccelNames[Name] = Die; }
+  void addAccelObjC(StringRef Name, DIE *Die) {
+    std::vector<DIE*> &DIEs = AccelObjC[Name];
+    DIEs.push_back(Die);
+  }
+  void addAccelNamespace(StringRef Name, DIE *Die) {
+    AccelNamespace[Name] = Die;
+  }
+  void addAccelType(StringRef Name, DIE *Die) {
+    AccelTypes[Name] = Die;
+  }
+  
   /// getDIE - Returns the debug information entry map slot for the
   /// specified debug variable.
   DIE *getDIE(const MDNode *N) { return MDNodeToDieMap.lookup(N); }