ia64-common.c revision 1.1
1/* Common hooks for IA64. 2 Copyright (C) 1999-2013 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 "tm_p.h" 26#include "common/common-target.h" 27#include "common/common-target-def.h" 28#include "opts.h" 29#include "flags.h" 30#include "params.h" 31 32/* Implement overriding of the optimization options. */ 33static const struct default_options ia64_option_optimization_table[] = 34 { 35 { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, 36#ifdef SUBTARGET_OPTIMIZATION_OPTIONS 37 SUBTARGET_OPTIMIZATION_OPTIONS, 38#endif 39 { OPT_LEVELS_NONE, 0, NULL, 0 } 40 }; 41 42/* Implement TARGET_HANDLE_OPTION. */ 43 44static bool 45ia64_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED, 46 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 47 const struct cl_decoded_option *decoded, 48 location_t loc) 49{ 50 size_t code = decoded->opt_index; 51 const char *arg = decoded->arg; 52 int value = decoded->value; 53 54 switch (code) 55 { 56 case OPT_mtls_size_: 57 if (value != 14 && value != 22 && value != 64) 58 error_at (loc, "bad value %<%s%> for -mtls-size= switch", arg); 59 return true; 60 61 default: 62 return true; 63 } 64} 65 66/* Implement TARGET_EXCEPT_UNWIND_INFO. */ 67 68enum unwind_info_type 69ia64_except_unwind_info (struct gcc_options *opts) 70{ 71 /* Honor the --enable-sjlj-exceptions configure switch. */ 72#ifdef CONFIG_SJLJ_EXCEPTIONS 73 if (CONFIG_SJLJ_EXCEPTIONS) 74 return UI_SJLJ; 75#endif 76 77 /* For simplicity elsewhere in this file, indicate that all unwind 78 info is disabled if we're not emitting unwind tables. */ 79 if (!opts->x_flag_exceptions && !opts->x_flag_unwind_tables) 80 return UI_NONE; 81 82 return UI_TARGET; 83} 84 85/* Implement TARGET_OPTION_DEFAULT_PARAMS. */ 86 87static void 88ia64_option_default_params (void) 89{ 90 /* Let the scheduler form additional regions. */ 91 set_default_param_value (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS, 2); 92 93 /* Set the default values for cache-related parameters. */ 94 set_default_param_value (PARAM_SIMULTANEOUS_PREFETCHES, 6); 95 set_default_param_value (PARAM_L1_CACHE_LINE_SIZE, 32); 96 97 set_default_param_value (PARAM_SCHED_MEM_TRUE_DEP_COST, 4); 98} 99 100#undef TARGET_OPTION_OPTIMIZATION_TABLE 101#define TARGET_OPTION_OPTIMIZATION_TABLE ia64_option_optimization_table 102#undef TARGET_OPTION_DEFAULT_PARAMS 103#define TARGET_OPTION_DEFAULT_PARAMS ia64_option_default_params 104 105#undef TARGET_EXCEPT_UNWIND_INFO 106#define TARGET_EXCEPT_UNWIND_INFO ia64_except_unwind_info 107 108#undef TARGET_DEFAULT_TARGET_FLAGS 109#define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | TARGET_CPU_DEFAULT) 110#undef TARGET_HANDLE_OPTION 111#define TARGET_HANDLE_OPTION ia64_handle_option 112 113struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; 114