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/* Common hooks for DEC Alpha.
Copyright (C) 1992-2014 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 "diagnostic-core.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 alpha_option_optimization_table[] =
{
{ OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
/* Enable redundant extension instructions removal at -O2 and higher. */
{ OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 },
{ OPT_LEVELS_NONE, 0, NULL, 0 }
};
/* Implement TARGET_OPTION_INIT_STRUCT. */
static void
alpha_option_init_struct (struct gcc_options *opts ATTRIBUTE_UNUSED)
{
#if TARGET_ABI_OPEN_VMS
/* Enable section anchors by default. */
opts->x_flag_section_anchors = 1;
#endif
}
/* Implement TARGET_HANDLE_OPTION. */
static bool
alpha_handle_option (struct gcc_options *opts,
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_mfp_regs:
if (value == 0)
opts->x_target_flags |= MASK_SOFT_FP;
break;
case OPT_mieee:
case OPT_mieee_with_inexact:
opts->x_target_flags |= MASK_IEEE_CONFORMANT;
break;
case OPT_mtls_size_:
if (value != 16 && value != 32 && value != 64)
error_at (loc, "bad value %qs for -mtls-size switch", arg);
break;
}
return true;
}
#undef TARGET_DEFAULT_TARGET_FLAGS
#define TARGET_DEFAULT_TARGET_FLAGS \
(TARGET_DEFAULT | TARGET_CPU_DEFAULT | TARGET_DEFAULT_EXPLICIT_RELOCS)
#undef TARGET_HANDLE_OPTION
#define TARGET_HANDLE_OPTION alpha_handle_option
#undef TARGET_OPTION_INIT_STRUCT
#define TARGET_OPTION_INIT_STRUCT alpha_option_init_struct
#undef TARGET_OPTION_OPTIMIZATION_TABLE
#define TARGET_OPTION_OPTIMIZATION_TABLE alpha_option_optimization_table
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
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