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89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/* Common hooks for AArch64.
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Copyright (C) 2012-2013 Free Software Foundation, Inc.
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Contributed by ARM Ltd.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "tm_p.h"
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#include "common/common-target.h"
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#include "common/common-target-def.h"
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#include "opts.h"
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#include "flags.h"
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#ifdef TARGET_BIG_ENDIAN_DEFAULT
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#undef TARGET_DEFAULT_TARGET_FLAGS
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#define TARGET_DEFAULT_TARGET_FLAGS (MASK_BIG_END)
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#endif
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#undef TARGET_HANDLE_OPTION
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#define TARGET_HANDLE_OPTION aarch64_handle_option
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#undef TARGET_OPTION_OPTIMIZATION_TABLE
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#define TARGET_OPTION_OPTIMIZATION_TABLE aarch_option_optimization_table
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/* Set default optimization options. */
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static const struct default_options aarch_option_optimization_table[] =
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{
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/* Enable section anchors by default at -O1 or higher. */
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{ OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 },
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{ OPT_LEVELS_NONE, 0, NULL, 0 }
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};
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/* Implement TARGET_HANDLE_OPTION.
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This function handles the target specific options for CPU/target selection.
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march wins over mcpu, so when march is defined, mcpu takes the same value,
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otherwise march remains undefined. mtune can be used with either march or
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mcpu. If march and mcpu are used together, the rightmost option wins.
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mtune can be used with either march or mcpu. */
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static bool
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aarch64_handle_option (struct gcc_options *opts,
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struct gcc_options *opts_set ATTRIBUTE_UNUSED,
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const struct cl_decoded_option *decoded,
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location_t loc ATTRIBUTE_UNUSED)
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{
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size_t code = decoded->opt_index;
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const char *arg = decoded->arg;
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switch (code)
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{
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case OPT_march_:
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opts->x_aarch64_arch_string = arg;
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opts->x_aarch64_cpu_string = arg;
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return true;
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case OPT_mcpu_:
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opts->x_aarch64_cpu_string = arg;
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opts->x_aarch64_arch_string = NULL;
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return true;
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case OPT_mtune_:
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opts->x_aarch64_tune_string = arg;
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return true;
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default:
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return true;
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}
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}
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struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
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