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/* Common hooks for Synopsys DesignWare ARC
Copyright (C) 1994-2020 Free Software Foundation, Inc.
Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
on behalf of Synopsys Inc.
Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com>
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 "opts.h"
#include "flags.h"
static void
arc_option_init_struct (struct gcc_options *opts)
{
opts->x_flag_no_common = 255; /* Mark as not user-initialized. */
/* Which cpu we're compiling for (ARC600, ARC601, ARC700, ARCv2). */
arc_cpu = PROCESSOR_NONE;
}
/* Set default optimization options. */
/* The conditions are incomplete, so we rely on the evaluation order here,
which goes from first to last, i.e. the last match prevails. */
/* ??? But this trick only works for reject_negative options. Approximate
missing option combination. */
#define OPT_LEVELS_3_PLUS_SPEED_ONLY OPT_LEVELS_3_PLUS
static const struct default_options arc_option_optimization_table[] =
{
{ OPT_LEVELS_ALL, OPT_mRcq, NULL, 1 },
{ OPT_LEVELS_ALL, OPT_mRcw, NULL, 1 },
{ OPT_LEVELS_ALL, OPT_msize_level_, NULL, 1 },
{ OPT_LEVELS_ALL, OPT_mearly_cbranchsi, NULL, 1 },
{ OPT_LEVELS_ALL, OPT_mbbit_peephole, NULL, 1 },
{ OPT_LEVELS_SIZE, OPT_ftree_loop_optimize, NULL, 0},
{ OPT_LEVELS_SIZE, OPT_fmove_loop_invariants, NULL, 0},
{ OPT_LEVELS_SIZE, OPT_fbranch_count_reg, NULL, 0},
{ OPT_LEVELS_SIZE, OPT_fdelayed_branch, NULL, 0 },
{ OPT_LEVELS_SIZE, OPT_fsection_anchors, NULL, 1 },
{ OPT_LEVELS_SIZE, OPT_mq_class, NULL, 1 },
{ OPT_LEVELS_SIZE, OPT_mcase_vector_pcrel, NULL, 1 },
{ OPT_LEVELS_SIZE, OPT_msize_level_, NULL, 3 },
{ OPT_LEVELS_SIZE, OPT_mmillicode, NULL, 1 },
{ OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
{ OPT_LEVELS_3_PLUS_SPEED_ONLY, OPT_msize_level_, NULL, 0 },
{ OPT_LEVELS_3_PLUS_SPEED_ONLY, OPT_malign_call, NULL, 1 },
{ OPT_LEVELS_NONE, 0, NULL, 0 }
};
/* Process options. */
static bool
arc_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;
int value = decoded->value;
static int mcpu_seen = PROCESSOR_NONE;
switch (code)
{
case OPT_mcpu_:
/* N.B., at this point arc_cpu has already been set to its new value by
our caller, so comparing arc_cpu with PROCESSOR_NONE is pointless. */
if (mcpu_seen != PROCESSOR_NONE && mcpu_seen != value)
warning_at (loc, 0, "multiple %<-mcpu=%> options specified.");
mcpu_seen = value;
break;
case OPT_mmpy_option_:
if (opts->x_arc_mpy_option == 1)
warning_at (loc, 0, "Unsupported value for mmpy-option");
break;
default:
break;
}
return true;
}
#undef TARGET_OPTION_INIT_STRUCT
#define TARGET_OPTION_INIT_STRUCT arc_option_init_struct
#undef TARGET_OPTION_OPTIMIZATION_TABLE
#define TARGET_OPTION_OPTIMIZATION_TABLE arc_option_optimization_table
#define DEFAULT_NO_SDATA (TARGET_SDATA_DEFAULT ? 0 : MASK_NO_SDATA_SET)
#undef TARGET_DEFAULT_TARGET_FLAGS
#define TARGET_DEFAULT_TARGET_FLAGS (DEFAULT_NO_SDATA | MASK_VOLATILE_CACHE_SET)
#undef TARGET_HANDLE_OPTION
#define TARGET_HANDLE_OPTION arc_handle_option
#include "common/common-target-def.h"
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
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