decl.c (lang_mark_tree): Mark NAMESPACE_LEVEL.

[gcc.git] / gcc / cp / decl.c

diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index a6a203706d50104767184a770addadad73b992f1..122b0251ac788fec8f63a2a20882466c4322cade 100644 (file)
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -14353,6 +14353,8 @@ lang_mark_tree (t)
          ggc_mark_tree (ld->decl_flags.context);
          if (TREE_CODE (t) != NAMESPACE_DECL)
            ggc_mark_tree (ld->decl_flags.u.template_info);
+         else
+           mark_binding_level (&NAMESPACE_LEVEL (t));
          if (CAN_HAVE_FULL_LANG_DECL_P (t))
            {
              ggc_mark_tree (ld->main_decl_variant);