PR jit/63854: Fix leak of optimization_summary_obstack

gcc/ChangeLog:
	PR jit/63854
	* ipa-reference.c (ipa_reference_c_finalize): Release
	optimization_summary_obstack.

From-SVN: r217797

gcc/ChangeLog

 2014-11-19  David Malcolm  <dmalcolm@redhat.com>
 
 	PR jit/63854
+	* ipa-reference.c (ipa_reference_c_finalize): Release
+	optimization_summary_obstack.
+
+2014-11-19  David Malcolm  <dmalcolm@redhat.com>
+
+	PR jit/63854
 	* toplev.c (toplev::finalize): Free opts_obstack.
 
 2014-11-19  David Malcolm  <dmalcolm@redhat.com>

gcc/ipa-reference.c

@@ -1193,5 +1193,9 @@ make_pass_ipa_reference (gcc::context *ctxt)
 void
 ipa_reference_c_finalize (void)
 {
-  ipa_init_p = false;
+  if (ipa_init_p)
+    {
+      bitmap_obstack_release (&optimization_summary_obstack);
+      ipa_init_p = false;
+    }
 }