2 files changed, 5 insertions, 4 deletions
diff --git a/dwflpp.cxx b/dwflpp.cxx
index f0bf7dcf..7d4fa3ab 100644
--- a/dwflpp.cxx
+++ b/dwflpp.cxx
@@ -514,12 +514,11 @@ dwflpp::iterate_over_inline_instances (int (* callback)(Dwarf_Die * die, void *
   assert (function);
   assert (func_is_inline ());
 
-  string key = module_name + ":" + cu_name + ":" + function_name;
-  vector<Dwarf_Die>* v = cu_inl_function_cache[key];
+  vector<Dwarf_Die>* v = cu_inl_function_cache[function->addr];
   if (v == 0)
     {
       v = new vector<Dwarf_Die>;
-      cu_inl_function_cache[key] = v;
+      cu_inl_function_cache[function->addr] = v;
       dwarf_func_inline_instances (function, cu_inl_function_caching_callback, v);
     }
 
diff --git a/dwflpp.h b/dwflpp.h
index 1d6fe0c8..9c342090 100644
--- a/dwflpp.h
+++ b/dwflpp.h
@@ -65,6 +65,9 @@ typedef stap_map<std::string, Dwarf_Die>::type cu_function_cache_t;
 // cu die -> (function -> die)
 typedef stap_map<void*, cu_function_cache_t*>::type mod_cu_function_cache_t;
 
+// inline function die -> instance die[]
+typedef stap_map<void*, std::vector<Dwarf_Die>*>::type cu_inl_function_cache_t;
+
 typedef std::vector<func_info> func_info_map_t;
 typedef std::vector<inline_instance_info> inline_instance_map_t;
 
@@ -289,7 +292,6 @@ private:
   typedef std::map<Dwarf*, std::vector<Dwarf_Die>*> module_cu_cache_t;
   module_cu_cache_t module_cu_cache;
 
-  typedef std::map<std::string, std::vector<Dwarf_Die>*> cu_inl_function_cache_t;
   cu_inl_function_cache_t cu_inl_function_cache;
   static int cu_inl_function_caching_callback (Dwarf_Die* func, void *arg);