Fix PR c++/43704

[pf3gnuchains/gcc-fork.git] / gcc / cp / semantics.c

diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 47f3897..589241f 100644 (file)
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -5976,6 +5976,18 @@ maybe_add_lambda_conv_op (tree type)
 
   start_preparsed_function (convfn, NULL_TREE,
                            SF_PRE_PARSED | SF_INCLASS_INLINE);
+  if (DECL_ONE_ONLY (statfn))
+    {
+      /* Put the thunk in the same comdat group as the call op.  */
+      struct cgraph_node *callop_node, *thunk_node;
+      DECL_COMDAT_GROUP (statfn) = DECL_COMDAT_GROUP (callop);
+      callop_node = cgraph_node (callop);
+      thunk_node = cgraph_node (statfn);
+      gcc_assert (callop_node->same_comdat_group == NULL);
+      gcc_assert (thunk_node->same_comdat_group == NULL);
+      callop_node->same_comdat_group = thunk_node;
+      thunk_node->same_comdat_group = callop_node;
+    }
   body = begin_function_body ();
   compound_stmt = begin_compound_stmt (0);