Add FIXME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93562 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 15f37aec148af8c5fcdaa0a4c03356a4ee474a27..1043fa823599cfedea043c37a626a9dd795acf8f 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -165,6 +165,7 @@ public:
 class DbgScope {
   DbgScope *Parent;                   // Parent to this scope.
   DIDescriptor Desc;                  // Debug info descriptor for scope.
+  // FIXME : Use of WeakVH may be expensive here.
   WeakVH InlinedAtLocation;           // Location at which scope is inlined.
   bool AbstractScope;                 // Abstract Scope
   unsigned StartLabelID;              // Label ID of the beginning of scope.