mips-common.c revision 1.6
1/* Common hooks for MIPS. 2 Copyright (C) 1989-2017 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 3, or (at your option) 9any later version. 10 11GCC is distributed in the hope that it will be useful, 12but WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14GNU General Public License for more details. 15 16You should have received a copy of the GNU General Public License 17along 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/* Implement TARGET_HANDLE_OPTION. */ 30 31static bool 32mips_handle_option (struct gcc_options *opts, 33 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 34 const struct cl_decoded_option *decoded, 35 location_t loc ATTRIBUTE_UNUSED) 36{ 37 size_t code = decoded->opt_index; 38 39 switch (code) 40 { 41 case OPT_mno_flush_func: 42 opts->x_mips_cache_flush_func = NULL; 43 return true; 44 45 case OPT_mfp32: 46 case OPT_mfp64: 47 opts->x_target_flags &= ~MASK_FLOATXX; 48 return true; 49 50 case OPT_mfpxx: 51 opts->x_target_flags &= ~MASK_FLOAT64; 52 return true; 53 54 default: 55 return true; 56 } 57} 58 59/* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ 60static const struct default_options mips_option_optimization_table[] = 61 { 62 { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, 63 { OPT_LEVELS_NONE, 0, NULL, 0 } 64 }; 65 66#undef TARGET_OPTION_OPTIMIZATION_TABLE 67#define TARGET_OPTION_OPTIMIZATION_TABLE mips_option_optimization_table 68 69#undef TARGET_DEFAULT_TARGET_FLAGS 70#define TARGET_DEFAULT_TARGET_FLAGS \ 71 (TARGET_DEFAULT \ 72 | TARGET_CPU_DEFAULT \ 73 | TARGET_ENDIAN_DEFAULT \ 74 | MASK_CHECK_ZERO_DIV) 75#undef TARGET_HANDLE_OPTION 76#define TARGET_HANDLE_OPTION mips_handle_option 77 78struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; 79