--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/common/config/tilegx/tilegx-common.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,59 @@
+/* Common hooks for TILE-Gx.
+   Copyright (C) 2011-2017 Free Software Foundation, Inc.
+   Contributed by Walter Lee (walt@tilera.com)
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "diagnostic-core.h"
+#include "tm.h"
+#include "common/common-target.h"
+#include "common/common-target-def.h"
+#include "opts.h"
+#include "flags.h"
+
+static const struct default_options tilegx_option_optimization_table[] = {
+  {OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1},
+  /* Scheduling and bundling are super important for our architecture, so
+     enable them at -O1. */
+  {OPT_LEVELS_1_PLUS, OPT_fschedule_insns, NULL, 1},
+  {OPT_LEVELS_1_PLUS, OPT_fschedule_insns2, NULL, 1},
+  {OPT_LEVELS_NONE, 0, NULL, 0}
+};
+
+
+static void
+tilegx_option_init_struct (struct gcc_options *opts)
+{
+  opts->x_flag_asynchronous_unwind_tables = 1;
+}
+
+
+#undef  TARGET_DEFAULT_TARGET_FLAGS
+#define TARGET_DEFAULT_TARGET_FLAGS \
+  (TARGET_DEFAULT		    \
+   | TARGET_ENDIAN_DEFAULT)
+
+#undef  TARGET_OPTION_OPTIMIZATION_TABLE
+#define TARGET_OPTION_OPTIMIZATION_TABLE tilegx_option_optimization_table
+
+#undef  TARGET_OPTION_INIT_STRUCT
+#define TARGET_OPTION_INIT_STRUCT tilegx_option_init_struct
+
+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;