[llvm-commits] [dragonegg] r92699 - /dragonegg/trunk/llvm-debug.cpp

[Duncan Sands]

Author: baldrick
Date: Tue Jan  5 01:03:39 2010
New Revision: 92699

URL: http://llvm.org/viewvc/llvm-project?rev=92699&view=rev
Log:
Port commit 91353 (dpatel) from llvm-gcc:
Check for existing type descriptor in type cache.

Modified:
    dragonegg/trunk/llvm-debug.cpp

Modified: dragonegg/trunk/llvm-debug.cpp
URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/llvm-debug.cpp?rev=92699&r1=92698&r2=92699&view=diff

==============================================================================
--- dragonegg/trunk/llvm-debug.cpp (original)
+++ dragonegg/trunk/llvm-debug.cpp Tue Jan  5 01:03:39 2010
@@ -650,9 +650,18 @@
   if (!TypeName.empty())
     FwdName = FwdName + TypeName.data();
   unsigned SFlags = 0;
+  DIDescriptor TyContext =  findRegion(TYPE_CONTEXT(type));
+
+  // Check if this type is created while creating context information 
+  // descriptor. 
+  std::map<tree_node *, WeakVH >::iterator I = TypeCache.find(type);
+  if (I != TypeCache.end())
+    if (MDNode *TN = dyn_cast_or_null<MDNode>(I->second))
+      return DIType(TN);
+  
   llvm::DICompositeType FwdDecl =
     DebugFactory.CreateCompositeType(Tag, 
-                                     findRegion(TYPE_CONTEXT(type)),
+                                     TyContext,
                                      FwdName.c_str(),
                                      getOrCreateCompileUnit(Loc.file), 
                                      Loc.line,