Emit debug info for namespaces.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94991 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index b0f2c0f..36b3a83 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -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;
+}