Fix memory leak in LTO

2017-02-14  Martin Liska  <mliska@suse.cz>

	* lto.c (do_stream_out): Free LTO file filename string.

From-SVN: r245431

gcc/lto/ChangeLog

@@ -1,3 +1,7 @@
+2017-02-14  Martin Liska  <mliska@suse.cz>
+
+	* lto.c (do_stream_out): Free LTO file filename string.
+
 2017-01-19  David Malcolm  <dmalcolm@redhat.com>
 
 	* lto-lang.c (builtin_type_for_size): Convert call to

gcc/lto/lto.c

@@ -2288,6 +2288,8 @@ do_stream_out (char *temp_filename, lto_symtab_encoder_t encoder)
 
   ipa_write_optimization_summaries (encoder);
 
+  free (CONST_CAST (char *, file->filename));
+
   lto_set_current_out_file (NULL);
   lto_obj_file_close (file);
   free (file);