Merge remote-tracking branch 'gnu/gcc-4_7-branch' into rework

[pf3gnuchains/gcc-fork.git] / gcc / common / config / mcore / mcore-common.c

diff --git a/gcc/common/config/mcore/mcore-common.c b/gcc/common/config/mcore/mcore-common.c
new file mode 100644 (file)
index 0000000..66633bf
--- /dev/null
+++ b/gcc/common/config/mcore/mcore-common.c
@@ -0,0 +1,54 @@
+/* Common hooks for Motorola MCore.
+   Copyright (C) 1993, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
+   2009, 2010, 2011 Free Software Foundation, Inc.
+
+   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 "tm.h"
+#include "common/common-target.h"
+#include "common/common-target-def.h"
+
+/* What options are we going to default to specific settings when
+   -O* happens; the user can subsequently override these settings.
+  
+   Omitting the frame pointer is a very good idea on the MCore.
+   Scheduling isn't worth anything on the current MCore implementation.  */
+
+static const struct default_options mcore_option_optimization_table[] =
+  {
+    { OPT_LEVELS_1_PLUS, OPT_ffunction_cse, NULL, 0 },
+    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
+    { OPT_LEVELS_ALL, OPT_fcaller_saves, NULL, 0 },
+    { OPT_LEVELS_ALL, OPT_fschedule_insns, NULL, 0 },
+    { OPT_LEVELS_ALL, OPT_fschedule_insns2, NULL, 0 },
+    { OPT_LEVELS_SIZE, OPT_mhardlit, NULL, 0 },
+    { OPT_LEVELS_NONE, 0, NULL, 0 }
+  };
+
+#undef  TARGET_DEFAULT_TARGET_FLAGS
+#define TARGET_DEFAULT_TARGET_FLAGS    TARGET_DEFAULT
+
+#undef TARGET_OPTION_OPTIMIZATION_TABLE
+#define TARGET_OPTION_OPTIMIZATION_TABLE mcore_option_optimization_table
+
+#undef TARGET_EXCEPT_UNWIND_INFO
+#define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info
+
+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;