1 /* Target-dependent globals.
2 Copyright (C) 2010-2014 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
22 #include "coretypes.h"
24 #include "insn-config.h"
29 #include "target-globals.h"
33 #include "hard-reg-set.h"
44 #include "bb-reorder.h"
45 #include "lower-subreg.h"
48 struct target_globals default_target_globals = {
49 &default_target_flag_state,
52 &default_target_hard_regs,
53 &default_target_reload,
54 &default_target_expmed,
55 &default_target_optabs,
56 &default_target_libfuncs,
57 &default_target_cfgloop,
59 &default_target_ira_int,
60 &default_target_lra_int,
61 &default_target_builtins,
63 &default_target_bb_reorder,
64 &default_target_lower_subreg
67 struct target_globals *
68 save_target_globals (void)
70 struct target_globals *g;
71 struct target_optabs *saved_this_fn_optabs = this_fn_optabs;
73 g = ggc_alloc_target_globals ();
74 g->flag_state = XCNEW (struct target_flag_state);
75 g->regs = XCNEW (struct target_regs);
76 g->rtl = ggc_alloc_cleared_target_rtl ();
77 g->hard_regs = XCNEW (struct target_hard_regs);
78 g->reload = XCNEW (struct target_reload);
79 g->expmed = XCNEW (struct target_expmed);
80 g->optabs = XCNEW (struct target_optabs);
81 g->libfuncs = ggc_alloc_cleared_target_libfuncs ();
82 g->cfgloop = XCNEW (struct target_cfgloop);
83 g->ira = XCNEW (struct target_ira);
84 g->ira_int = XCNEW (struct target_ira_int);
85 g->lra_int = XCNEW (struct target_lra_int);
86 g->builtins = XCNEW (struct target_builtins);
87 g->gcse = XCNEW (struct target_gcse);
88 g->bb_reorder = XCNEW (struct target_bb_reorder);
89 g->lower_subreg = XCNEW (struct target_lower_subreg);
90 restore_target_globals (g);
91 this_fn_optabs = this_target_optabs;
94 this_fn_optabs = saved_this_fn_optabs;
98 /* Like save_target_globals() above, but set *this_target_optabs
99 correctly when a previous function has changed
100 *this_target_optabs. */
102 struct target_globals *
103 save_target_globals_default_opts ()
105 struct target_globals *globals;
107 if (optimization_current_node != optimization_default_node)
109 tree opts = optimization_current_node;
110 /* Temporarily switch to the default optimization node, so that
111 *this_target_optabs is set to the default, not reflecting
112 whatever a previous function used for the optimize
114 optimization_current_node = optimization_default_node;
115 cl_optimization_restore
117 TREE_OPTIMIZATION (optimization_default_node));
118 globals = save_target_globals ();
119 optimization_current_node = opts;
120 cl_optimization_restore (&global_options,
121 TREE_OPTIMIZATION (opts));
124 return save_target_globals ();