1/* Common hooks for IA64. 2 Copyright (C) 1999-2020 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 "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. */ 33static const struct default_options ia64_option_optimization_table[] = 34 { 35#ifdef SUBTARGET_OPTIMIZATION_OPTIONS 36 SUBTARGET_OPTIMIZATION_OPTIONS, 37#endif 38 39 /* Let the scheduler form additional regions. */ 40 { OPT_LEVELS_ALL, OPT__param_max_sched_extend_regions_iters_, NULL, 2 }, 41 /* Set the default values for cache-related parameters. */ 42 { OPT_LEVELS_ALL, OPT__param_simultaneous_prefetches_, NULL, 6 }, 43 { OPT_LEVELS_ALL, OPT__param_l1_cache_line_size_ , NULL, 32}, 44 { OPT_LEVELS_ALL, OPT__param_sched_mem_true_dep_cost_, NULL, 4 }, 45 46 { OPT_LEVELS_NONE, 0, NULL, 0 } 47 }; 48 49/* Implement TARGET_HANDLE_OPTION. */ 50 51static bool 52ia64_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED, 53 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 54 const struct cl_decoded_option *decoded, 55 location_t loc) 56{ 57 size_t code = decoded->opt_index; 58 const char *arg = decoded->arg; 59 int value = decoded->value; 60 61 switch (code) 62 { 63 case OPT_mtls_size_: 64 if (value != 14 && value != 22 && value != 64) 65 error_at (loc, "bad value %<%s%> for %<-mtls-size=%> switch", arg); 66 return true; 67 68 default: 69 return true; 70 } 71} 72 73/* Implement TARGET_EXCEPT_UNWIND_INFO. */ 74 75enum unwind_info_type 76ia64_except_unwind_info (struct gcc_options *opts) 77{ 78 /* Honor the --enable-sjlj-exceptions configure switch. */ 79#ifdef CONFIG_SJLJ_EXCEPTIONS 80 if (CONFIG_SJLJ_EXCEPTIONS) 81 return UI_SJLJ; 82#endif 83 84 /* For simplicity elsewhere in this file, indicate that all unwind 85 info is disabled if we're not emitting unwind tables. */ 86 if (!opts->x_flag_exceptions && !opts->x_flag_unwind_tables) 87 return UI_NONE; 88 89 return UI_TARGET; 90} 91 92#undef TARGET_OPTION_OPTIMIZATION_TABLE 93#define TARGET_OPTION_OPTIMIZATION_TABLE ia64_option_optimization_table 94 95#undef TARGET_EXCEPT_UNWIND_INFO 96#define TARGET_EXCEPT_UNWIND_INFO ia64_except_unwind_info 97 98#undef TARGET_DEFAULT_TARGET_FLAGS 99#define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | TARGET_CPU_DEFAULT) 100#undef TARGET_HANDLE_OPTION 101#define TARGET_HANDLE_OPTION ia64_handle_option 102 103struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; 104