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/* Target-dependent globals.
Copyright (C) 2010-2014 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 "tm.h"
#include "insn-config.h"
#include "machmode.h"
#include "tree.h"
#include "ggc.h"
#include "toplev.h"
#include "target-globals.h"
#include "flags.h"
#include "regs.h"
#include "rtl.h"
#include "hard-reg-set.h"
#include "reload.h"
#include "expmed.h"
#include "expr.h"
#include "optabs.h"
#include "libfuncs.h"
#include "cfgloop.h"
#include "ira-int.h"
#include "lra-int.h"
#include "builtins.h"
#include "gcse.h"
#include "bb-reorder.h"
#include "lower-subreg.h"
#if SWITCHABLE_TARGET
struct target_globals default_target_globals = {
&default_target_flag_state,
&default_target_regs,
&default_target_rtl,
&default_target_hard_regs,
&default_target_reload,
&default_target_expmed,
&default_target_optabs,
&default_target_libfuncs,
&default_target_cfgloop,
&default_target_ira,
&default_target_ira_int,
&default_target_lra_int,
&default_target_builtins,
&default_target_gcse,
&default_target_bb_reorder,
&default_target_lower_subreg
};
struct target_globals *
save_target_globals (void)
{
struct target_globals *g;
struct target_globals_extra {
struct target_globals g;
struct target_flag_state flag_state;
struct target_optabs optabs;
struct target_cfgloop cfgloop;
struct target_builtins builtins;
struct target_gcse gcse;
struct target_bb_reorder bb_reorder;
struct target_lower_subreg lower_subreg;
} *p;
p = (struct target_globals_extra *)
ggc_internal_cleared_alloc_stat (sizeof (struct target_globals_extra)
PASS_MEM_STAT);
g = (struct target_globals *) p;
g->flag_state = &p->flag_state;
g->regs = ggc_internal_cleared_alloc_stat (sizeof (struct target_regs)
PASS_MEM_STAT);
g->rtl = ggc_alloc_cleared_target_rtl ();
g->hard_regs
= ggc_internal_cleared_alloc_stat (sizeof (struct target_hard_regs)
PASS_MEM_STAT);
g->reload = ggc_internal_cleared_alloc_stat (sizeof (struct target_reload)
PASS_MEM_STAT);
g->expmed = ggc_internal_cleared_alloc_stat (sizeof (struct target_expmed)
PASS_MEM_STAT);
g->optabs = &p->optabs;
g->libfuncs = ggc_alloc_cleared_target_libfuncs ();
g->cfgloop = &p->cfgloop;
g->ira = ggc_internal_cleared_alloc_stat (sizeof (struct target_ira)
PASS_MEM_STAT);
g->ira_int = ggc_internal_cleared_alloc_stat (sizeof (struct target_ira_int)
PASS_MEM_STAT);
g->lra_int = ggc_internal_cleared_alloc_stat (sizeof (struct target_lra_int)
PASS_MEM_STAT);
g->builtins = &p->builtins;
g->gcse = &p->gcse;
g->bb_reorder = &p->bb_reorder;
g->lower_subreg = &p->lower_subreg;
restore_target_globals (g);
init_reg_sets ();
target_reinit ();
return g;
}
/* Like save_target_globals() above, but set *this_target_optabs
correctly when a previous function has changed
*this_target_optabs. */
struct target_globals *
save_target_globals_default_opts ()
{
struct target_globals *globals;
if (optimization_current_node != optimization_default_node)
{
tree opts = optimization_current_node;
/* Temporarily switch to the default optimization node, so that
*this_target_optabs is set to the default, not reflecting
whatever a previous function used for the optimize
attribute. */
optimization_current_node = optimization_default_node;
cl_optimization_restore
(&global_options,
TREE_OPTIMIZATION (optimization_default_node));
globals = save_target_globals ();
optimization_current_node = opts;
cl_optimization_restore (&global_options,
TREE_OPTIMIZATION (opts));
return globals;
}
return save_target_globals ();
}
#endif
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