1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/cp/mangle.c b/gcc/cp/mangle.c
index b870292..8c8eff9 100644
--- a/gcc/cp/mangle.c
+++ b/gcc/cp/mangle.c
@@ -2816,6 +2816,9 @@ mangle_conv_op_name_for_type (const tree type)
   void **slot;
   tree identifier;
 
+  if (type == error_mark_node)
+    return error_mark_node;
+
   if (conv_type_names == NULL)
     conv_type_names = htab_create_ggc (31, &hash_type, &compare_type, NULL);