* pt.c (retrieve_specialization): Handle null tmpl argument.

From-SVN: r196850

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 4191c86..bef6fae 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,7 @@
 2013-03-20  Jason Merrill  <jason@redhat.com>
 
+       * pt.c (retrieve_specialization): Handle null tmpl argument.
+
        PR c++/17232
        PR c++/56642
        * pt.c (tsubst_decl): Check return value of register_specialization.

diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 531d860..d56ffed 100644 (file)
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -1009,6 +1009,9 @@ optimize_specialization_lookup_p (tree tmpl)
 static tree
 retrieve_specialization (tree tmpl, tree args, hashval_t hash)
 {
+  if (tmpl == NULL_TREE)
+    return NULL_TREE;
+
   if (args == error_mark_node)
     return NULL_TREE;