1 /* Common hooks for Renesas M32R. 2 Copyright (C) 1996-2017 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 #include "opts.h" 27 #include "flags.h" 28 29 static const struct default_options m32r_option_optimization_table[] = 30 { 31 { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, 32 { OPT_LEVELS_NONE, 0, NULL, 0 } 33 }; 34 35 /* Implement TARGET_HANDLE_OPTION. */ 36 37 static bool 38 m32r_handle_option (struct gcc_options *opts, 39 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 40 const struct cl_decoded_option *decoded, 41 location_t loc ATTRIBUTE_UNUSED) 42 { 43 size_t code = decoded->opt_index; 44 int value = decoded->value; 45 46 switch (code) 47 { 48 case OPT_m32r: 49 opts->x_target_flags &= ~(MASK_M32R2 | MASK_M32RX); 50 return true; 51 52 case OPT_mno_flush_func: 53 opts->x_m32r_cache_flush_func = NULL; 54 return true; 55 56 case OPT_mflush_trap_: 57 return value <= 15; 58 59 default: 60 return true; 61 } 62 } 63 64 #undef TARGET_DEFAULT_TARGET_FLAGS 65 #define TARGET_DEFAULT_TARGET_FLAGS TARGET_CPU_DEFAULT 66 #undef TARGET_HANDLE_OPTION 67 #define TARGET_HANDLE_OPTION m32r_handle_option 68 #undef TARGET_OPTION_OPTIMIZATION_TABLE 69 #define TARGET_OPTION_OPTIMIZATION_TABLE m32r_option_optimization_table 70 71 #undef TARGET_EXCEPT_UNWIND_INFO 72 #define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info 73 74 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; 75