1 /* Target-dependent globals.
2 Copyright (C) 2010-2018 Free Software Foundation, Inc.
3
4 This file is part of GCC.
5
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
9 version.
10
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
14 for more details.
15
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/>. */
19
20 #include "config.h"
21 #include "system.h"
22 #include "coretypes.h"
23 #include "backend.h"
24 #include "rtl.h"
25 #include "tree.h"
26 #include "expmed.h"
27 #include "optabs-query.h"
28 #include "insn-config.h"
29 #include "regs.h"
30 #include "memmodel.h"
31 #include "ira.h"
32 #include "ira-int.h"
33 #include "toplev.h"
34 #include "target-globals.h"
35 #include "flags.h"
36 #include "reload.h"
37 #include "libfuncs.h"
38 #include "cfgloop.h"
39 #include "builtins.h"
40 #include "gcse.h"
41 #include "bb-reorder.h"
42 #include "lower-subreg.h"
43
44 #if SWITCHABLE_TARGET
45 struct target_globals default_target_globals = {
46 &default_target_flag_state,
47 &default_target_regs,
48 &default_target_rtl,
49 &default_target_recog,
50 &default_target_hard_regs,
51 &default_target_reload,
52 &default_target_expmed,
53 &default_target_optabs,
54 &default_target_libfuncs,
55 &default_target_cfgloop,
56 &default_target_ira,
57 &default_target_ira_int,
58 &default_target_builtins,
59 &default_target_gcse,
60 &default_target_bb_reorder,
61 &default_target_lower_subreg
62 };
63
64 struct target_globals *
save_target_globals(void)65 save_target_globals (void)
66 {
67 struct target_globals *g = ggc_cleared_alloc <target_globals> ();
68 g->flag_state = XCNEW (struct target_flag_state);
69 g->regs = XCNEW (struct target_regs);
70 g->rtl = ggc_cleared_alloc<target_rtl> ();
71 g->recog = XCNEW (struct target_recog);
72 g->hard_regs = XCNEW (struct target_hard_regs);
73 g->reload = XCNEW (struct target_reload);
74 g->expmed = XCNEW (struct target_expmed);
75 g->optabs = XCNEW (struct target_optabs);
76 g->libfuncs = ggc_cleared_alloc<target_libfuncs> ();
77 g->cfgloop = XCNEW (struct target_cfgloop);
78 g->ira = XCNEW (struct target_ira);
79 g->ira_int = XCNEW (struct target_ira_int);
80 g->builtins = XCNEW (struct target_builtins);
81 g->gcse = XCNEW (struct target_gcse);
82 g->bb_reorder = XCNEW (struct target_bb_reorder);
83 g->lower_subreg = XCNEW (struct target_lower_subreg);
84 restore_target_globals (g);
85 init_reg_sets ();
86 target_reinit ();
87 return g;
88 }
89
90 /* Like save_target_globals() above, but set *this_target_optabs
91 correctly when a previous function has changed
92 *this_target_optabs. */
93
94 struct target_globals *
save_target_globals_default_opts()95 save_target_globals_default_opts ()
96 {
97 struct target_globals *globals;
98
99 if (optimization_current_node != optimization_default_node)
100 {
101 tree opts = optimization_current_node;
102 /* Temporarily switch to the default optimization node, so that
103 *this_target_optabs is set to the default, not reflecting
104 whatever a previous function used for the optimize
105 attribute. */
106 optimization_current_node = optimization_default_node;
107 cl_optimization_restore
108 (&global_options,
109 TREE_OPTIMIZATION (optimization_default_node));
110 globals = save_target_globals ();
111 optimization_current_node = opts;
112 cl_optimization_restore (&global_options,
113 TREE_OPTIMIZATION (opts));
114 return globals;
115 }
116 return save_target_globals ();
117 }
118
~target_globals()119 target_globals::~target_globals ()
120 {
121 /* default_target_globals points to static data so shouldn't be freed. */
122 if (this != &default_target_globals)
123 {
124 ira_int->~target_ira_int ();
125 hard_regs->finalize ();
126 XDELETE (flag_state);
127 XDELETE (regs);
128 XDELETE (recog);
129 XDELETE (hard_regs);
130 XDELETE (reload);
131 XDELETE (expmed);
132 XDELETE (optabs);
133 XDELETE (cfgloop);
134 XDELETE (ira);
135 XDELETE (ira_int);
136 XDELETE (builtins);
137 XDELETE (gcse);
138 XDELETE (bb_reorder);
139 XDELETE (lower_subreg);
140 }
141 }
142
143 #endif
144