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111
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1 /* Common hooks for Motorola MCore.
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131
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2 Copyright (C) 1993-2018 Free Software Foundation, Inc.
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111
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published
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8 by the Free Software Foundation; either version 3, or (at your
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9 option) any later version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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14 License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #include "config.h"
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21 #include "system.h"
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22 #include "coretypes.h"
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23 #include "tm.h"
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24 #include "common/common-target.h"
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25 #include "common/common-target-def.h"
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26
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27 /* What options are we going to default to specific settings when
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28 -O* happens; the user can subsequently override these settings.
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29
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30 Omitting the frame pointer is a very good idea on the MCore.
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31 Scheduling isn't worth anything on the current MCore implementation. */
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32
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33 static const struct default_options mcore_option_optimization_table[] =
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34 {
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35 { OPT_LEVELS_1_PLUS, OPT_ffunction_cse, NULL, 0 },
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36 { OPT_LEVELS_ALL, OPT_fcaller_saves, NULL, 0 },
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37 { OPT_LEVELS_ALL, OPT_fschedule_insns, NULL, 0 },
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38 { OPT_LEVELS_ALL, OPT_fschedule_insns2, NULL, 0 },
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39 { OPT_LEVELS_SIZE, OPT_mhardlit, NULL, 0 },
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40 { OPT_LEVELS_NONE, 0, NULL, 0 }
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41 };
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42
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43 #undef TARGET_DEFAULT_TARGET_FLAGS
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44 #define TARGET_DEFAULT_TARGET_FLAGS TARGET_DEFAULT
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45
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46 #undef TARGET_OPTION_OPTIMIZATION_TABLE
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47 #define TARGET_OPTION_OPTIMIZATION_TABLE mcore_option_optimization_table
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48
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49 #undef TARGET_EXCEPT_UNWIND_INFO
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50 #define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info
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51
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52 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
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