[cfe-commits] r94991 - in /cfe/trunk/lib/CodeGen: CGDebugInfo.cpp CGDebugInfo.h

[Devang Patel]

Author: dpatel
Date: Mon Feb  1 13:16:32 2010
New Revision: 94991

URL: http://llvm.org/viewvc/llvm-project?rev=94991&view=rev
Log:
Emit debug info for namespaces.

Modified:
    cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
    cfe/trunk/lib/CodeGen/CGDebugInfo.h

Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=94991&r1=94990&r2=94991&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Mon Feb  1 13:16:32 2010
@@ -57,6 +57,8 @@
      I = RegionMap.find(Parent);
    if (I != RegionMap.end())
      return llvm::DIDescriptor(dyn_cast_or_null<llvm::MDNode>(I->second));
+   if (const NamespaceDecl *NSDecl = dyn_cast<NamespaceDecl>(Parent))
+     return llvm::DIDescriptor(getOrCreateNameSpace(NSDecl, CompileUnit));
   }
   return CompileUnit;
 }
@@ -1802,3 +1804,26 @@
                                     Var->hasInternalLinkage(),
                                     true/*definition*/, Var);
 }
+
+/// getOrCreateNamesSpace - Return namespace descriptor for the given
+/// namespace decl.
+llvm::DINameSpace 
+CGDebugInfo::getOrCreateNameSpace(const NamespaceDecl *NSDecl, 
+                                  llvm::DIDescriptor Unit) {
+  llvm::DenseMap<const NamespaceDecl *, llvm::WeakVH>::iterator I = 
+    NameSpaceCache.find(NSDecl);
+  if (I != NameSpaceCache.end())
+    return llvm::DINameSpace(cast<llvm::MDNode>(I->second));
+  
+  SourceManager &SM = CGM.getContext().getSourceManager();
+  PresumedLoc PLoc = SM.getPresumedLoc(NSDecl->getLocation());
+  unsigned LineNo = PLoc.isInvalid() ? 0 : PLoc.getLine();
+
+  llvm::DIDescriptor Context = 
+    getContextDescriptor(NSDecl, Unit);
+  llvm::DINameSpace NS =
+    DebugFactory.CreateNameSpace(Context, NSDecl->getName(), 
+	llvm::DICompileUnit(Unit.getNode()), LineNo);
+  NameSpaceCache[NSDecl] = llvm::WeakVH(NS.getNode());
+  return NS;
+}

Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.h?rev=94991&r1=94990&r2=94991&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.h (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.h Mon Feb  1 13:16:32 2010
@@ -68,6 +68,7 @@
   llvm::BumpPtrAllocator DebugInfoNames;
 
   llvm::DenseMap<const FunctionDecl *, llvm::WeakVH> SPCache;
+  llvm::DenseMap<const NamespaceDecl *, llvm::WeakVH> NameSpaceCache;
 
   /// Helper functions for getOrCreateType.
   llvm::DIType CreateType(const BuiltinType *Ty, llvm::DICompileUnit U);
@@ -89,7 +90,9 @@
   llvm::DIType getOrCreateMethodType(const CXXMethodDecl *Method,
                                      llvm::DICompileUnit Unit);
   llvm::DIType getOrCreateVTablePtrType(llvm::DICompileUnit Unit);
-  
+  llvm::DINameSpace getOrCreateNameSpace(const NamespaceDecl *N, 
+                                         llvm::DIDescriptor Unit);
+
   llvm::DIType CreatePointerLikeType(unsigned Tag,
                                      const Type *Ty, QualType PointeeTy,
                                      llvm::DICompileUnit U);