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jeremybenn |
/* Common hooks for Motorola MCore.
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Copyright (C) 1993, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
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2009, 2010, 2011 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "common/common-target.h"
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#include "common/common-target-def.h"
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/* What options are we going to default to specific settings when
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-O* happens; the user can subsequently override these settings.
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Omitting the frame pointer is a very good idea on the MCore.
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Scheduling isn't worth anything on the current MCore implementation. */
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static const struct default_options mcore_option_optimization_table[] =
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{
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{ OPT_LEVELS_1_PLUS, OPT_ffunction_cse, NULL, 0 },
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{ OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
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{ OPT_LEVELS_ALL, OPT_fcaller_saves, NULL, 0 },
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{ OPT_LEVELS_ALL, OPT_fschedule_insns, NULL, 0 },
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{ OPT_LEVELS_ALL, OPT_fschedule_insns2, NULL, 0 },
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{ OPT_LEVELS_SIZE, OPT_mhardlit, NULL, 0 },
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{ OPT_LEVELS_NONE, 0, NULL, 0 }
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};
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#undef TARGET_DEFAULT_TARGET_FLAGS
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#define TARGET_DEFAULT_TARGET_FLAGS TARGET_DEFAULT
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#undef TARGET_OPTION_OPTIMIZATION_TABLE
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#define TARGET_OPTION_OPTIMIZATION_TABLE mcore_option_optimization_table
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#undef TARGET_EXCEPT_UNWIND_INFO
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#define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info
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struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
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