Fix clang warning in pt.cc

Fixes:

gcc/cp/pt.cc:13755:23: warning: suggest braces around initialization of subobject [-Wmissing-braces]
  tree_vec_map in = { fn, nullptr };

gcc/cp/ChangeLog:

	* pt.cc (defarg_insts_for): Use braces for subobject.

diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index 16bedbc4bc7cc0585388abe37ef05487bb3ef990..70f02db8757a069c2cd4af062464d1c52f0ae03a 100644 (file)
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -13752,7 +13752,7 @@ defarg_insts_for (tree fn)
 {
   if (!defarg_inst)
     defarg_inst = hash_table<tree_vec_map_cache_hasher>::create_ggc (13);
-  tree_vec_map in = { fn, nullptr };
+  tree_vec_map in = { { fn }, nullptr };
   tree_vec_map **slot
     = defarg_inst->find_slot_with_hash (&in, DECL_UID (fn), INSERT);
   if (!*slot)