1 /* Common hooks for Motorola MCore. 2 Copyright (C) 1993-2020 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it 7 under the terms of the GNU General Public License as published 8 by the Free Software Foundation; either version 3, or (at your 9 option) any later version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 #include "config.h" 21 #include "system.h" 22 #include "coretypes.h" 23 #include "tm.h" 24 #include "common/common-target.h" 25 #include "common/common-target-def.h" 26 27 /* What options are we going to default to specific settings when 28 -O* happens; the user can subsequently override these settings. 29 30 Omitting the frame pointer is a very good idea on the MCore. 31 Scheduling isn't worth anything on the current MCore implementation. */ 32 33 static const struct default_options mcore_option_optimization_table[] = 34 { 35 { OPT_LEVELS_1_PLUS, OPT_ffunction_cse, NULL, 0 }, 36 { OPT_LEVELS_ALL, OPT_fcaller_saves, NULL, 0 }, 37 { OPT_LEVELS_ALL, OPT_fschedule_insns, NULL, 0 }, 38 { OPT_LEVELS_ALL, OPT_fschedule_insns2, NULL, 0 }, 39 { OPT_LEVELS_SIZE, OPT_mhardlit, NULL, 0 }, 40 { OPT_LEVELS_NONE, 0, NULL, 0 } 41 }; 42 43 #undef TARGET_DEFAULT_TARGET_FLAGS 44 #define TARGET_DEFAULT_TARGET_FLAGS TARGET_DEFAULT 45 46 #undef TARGET_OPTION_OPTIMIZATION_TABLE 47 #define TARGET_OPTION_OPTIMIZATION_TABLE mcore_option_optimization_table 48 49 #undef TARGET_EXCEPT_UNWIND_INFO 50 #define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info 51 52 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; 53