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/* Common hooks for IA64.
Copyright (C) 1999-2018 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 "diagnostic-core.h"
#include "tm.h"
#include "memmodel.h"
#include "tm_p.h"
#include "common/common-target.h"
#include "common/common-target-def.h"
#include "opts.h"
#include "flags.h"
#include "params.h"
/* Implement overriding of the optimization options. */
static const struct default_options ia64_option_optimization_table[] =
{
#ifdef SUBTARGET_OPTIMIZATION_OPTIONS
SUBTARGET_OPTIMIZATION_OPTIONS,
#endif
{ OPT_LEVELS_NONE, 0, NULL, 0 }
};
/* Implement TARGET_HANDLE_OPTION. */
static bool
ia64_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED,
struct gcc_options *opts_set ATTRIBUTE_UNUSED,
const struct cl_decoded_option *decoded,
location_t loc)
{
size_t code = decoded->opt_index;
const char *arg = decoded->arg;
int value = decoded->value;
switch (code)
{
case OPT_mtls_size_:
if (value != 14 && value != 22 && value != 64)
error_at (loc, "bad value %<%s%> for -mtls-size= switch", arg);
return true;
default:
return true;
}
}
/* Implement TARGET_EXCEPT_UNWIND_INFO. */
enum unwind_info_type
ia64_except_unwind_info (struct gcc_options *opts)
{
/* Honor the --enable-sjlj-exceptions configure switch. */
#ifdef CONFIG_SJLJ_EXCEPTIONS
if (CONFIG_SJLJ_EXCEPTIONS)
return UI_SJLJ;
#endif
/* For simplicity elsewhere in this file, indicate that all unwind
info is disabled if we're not emitting unwind tables. */
if (!opts->x_flag_exceptions && !opts->x_flag_unwind_tables)
return UI_NONE;
return UI_TARGET;
}
/* Implement TARGET_OPTION_DEFAULT_PARAMS. */
static void
ia64_option_default_params (void)
{
/* Let the scheduler form additional regions. */
set_default_param_value (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS, 2);
/* Set the default values for cache-related parameters. */
set_default_param_value (PARAM_SIMULTANEOUS_PREFETCHES, 6);
set_default_param_value (PARAM_L1_CACHE_LINE_SIZE, 32);
set_default_param_value (PARAM_SCHED_MEM_TRUE_DEP_COST, 4);
}
#undef TARGET_OPTION_OPTIMIZATION_TABLE
#define TARGET_OPTION_OPTIMIZATION_TABLE ia64_option_optimization_table
#undef TARGET_OPTION_DEFAULT_PARAMS
#define TARGET_OPTION_DEFAULT_PARAMS ia64_option_default_params
#undef TARGET_EXCEPT_UNWIND_INFO
#define TARGET_EXCEPT_UNWIND_INFO ia64_except_unwind_info
#undef TARGET_DEFAULT_TARGET_FLAGS
#define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | TARGET_CPU_DEFAULT)
#undef TARGET_HANDLE_OPTION
#define TARGET_HANDLE_OPTION ia64_handle_option
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
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