1 /* TI C6X common hooks. 2 Copyright (C) 2011-2017 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 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public 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 "diagnostic-core.h" 24 #include "tm.h" 25 #include "memmodel.h" 26 #include "tm_p.h" 27 #include "common/common-target.h" 28 #include "common/common-target-def.h" 29 #include "opts.h" 30 #include "flags.h" 31 32 /* Implement overriding of the optimization options. */ 33 static const struct default_options c6x_option_optimization_table[] = 34 { 35 { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, 36 { OPT_LEVELS_1_PLUS, OPT_frename_registers, NULL, 1 }, 37 { OPT_LEVELS_2_PLUS, OPT_fmodulo_sched, NULL, 1 }, 38 { OPT_LEVELS_ALL, OPT_freciprocal_math, NULL, 1 }, 39 { OPT_LEVELS_NONE, 0, NULL, 0 } 40 }; 41 42 /* Implement TARGET_EXCEPT_UNWIND_INFO. */ 43 44 static enum unwind_info_type 45 c6x_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) 46 { 47 /* Honor the --enable-sjlj-exceptions configure switch. */ 48 #ifdef CONFIG_SJLJ_EXCEPTIONS 49 if (CONFIG_SJLJ_EXCEPTIONS) 50 return UI_SJLJ; 51 #endif 52 53 return UI_TARGET; 54 } 55 56 #undef TARGET_DEFAULT_TARGET_FLAGS 57 #define TARGET_DEFAULT_TARGET_FLAGS TARGET_DEFAULT 58 59 #undef TARGET_OPTION_OPTIMIZATION_TABLE 60 #define TARGET_OPTION_OPTIMIZATION_TABLE c6x_option_optimization_table 61 62 #undef TARGET_EXCEPT_UNWIND_INFO 63 #define TARGET_EXCEPT_UNWIND_INFO c6x_except_unwind_info 64 65 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; 66