| /* Common hooks for pdp11. |
| Copyright (C) 1994-2014 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "config.h" |
| #include "system.h" |
| #include "coretypes.h" |
| #include "tm.h" |
| #include "common/common-target.h" |
| #include "common/common-target-def.h" |
| #include "opts.h" |
| #include "flags.h" |
| |
| /* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ |
| |
| static const struct default_options pdp11_option_optimization_table[] = |
| { |
| { OPT_LEVELS_3_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, |
| { OPT_LEVELS_NONE, 0, NULL, 0 } |
| }; |
| |
| /* Implement TARGET_HANDLE_OPTION. */ |
| |
| static bool |
| pdp11_handle_option (struct gcc_options *opts, |
| struct gcc_options *opts_set ATTRIBUTE_UNUSED, |
| const struct cl_decoded_option *decoded, |
| location_t loc ATTRIBUTE_UNUSED) |
| { |
| size_t code = decoded->opt_index; |
| |
| switch (code) |
| { |
| case OPT_m10: |
| opts->x_target_flags &= ~(MASK_40 | MASK_45); |
| return true; |
| |
| default: |
| return true; |
| } |
| } |
| |
| /* Implement TARGET_OPTION_INIT_STRUCT. */ |
| |
| static void |
| pdp11_option_init_struct (struct gcc_options *opts) |
| { |
| opts->x_flag_finite_math_only = 0; |
| opts->x_flag_trapping_math = 0; |
| opts->x_flag_signaling_nans = 0; |
| } |
| |
| #undef TARGET_DEFAULT_TARGET_FLAGS |
| #define TARGET_DEFAULT_TARGET_FLAGS \ |
| (MASK_FPU | MASK_45 | TARGET_UNIX_ASM_DEFAULT) |
| #undef TARGET_HANDLE_OPTION |
| #define TARGET_HANDLE_OPTION pdp11_handle_option |
| #undef TARGET_OPTION_OPTIMIZATION_TABLE |
| #define TARGET_OPTION_OPTIMIZATION_TABLE pdp11_option_optimization_table |
| #undef TARGET_OPTION_INIT_STRUCT |
| #define TARGET_OPTION_INIT_STRUCT pdp11_option_init_struct |
| |
| struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; |