From: Jason Merrill <jason@redhat.com>
Date: Thu, 21 Mar 2013 03:25:23 +0000 (-0400)
Subject: * pt.c (retrieve_specialization): Handle null tmpl argument.
X-Git-Tag: releases/gcc-4.9.0~6958
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c77f56bb5149721d410b2ff4e065bd3fc6c53cc7;p=thirdparty%2Fgcc.git

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

From-SVN: r196850
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 4191c860786f..bef6faeb6546 100644
--- 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 531d8607aff3..d56ffede6b68 100644
--- 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;