1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/* Top-level control of tree optimizations.
Copyright (C) 2001-2013 Free Software Foundation, Inc.
Contributed by Diego Novillo <dnovillo@redhat.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 "tm.h"
#include "tree.h"
#include "tm_p.h"
#include "basic-block.h"
#include "flags.h"
#include "tree-ssa.h"
#include "function.h"
#include "langhooks.h"
#include "diagnostic-core.h"
#include "toplev.h"
#include "flags.h"
#include "cgraph.h"
#include "tree-inline.h"
#include "tree-pass.h"
#include "ggc.h"
#include "cgraph.h"
#include "cfgloop.h"
#include "except.h"
#include "plugin.h"
/* Pass: cleanup the CFG just before expanding trees to RTL.
This is just a round of label cleanups and case node grouping
because after the tree optimizers have run such cleanups may
be necessary. */
static unsigned int
execute_cleanup_cfg_post_optimizing (void)
{
unsigned int todo = 0;
if (cleanup_tree_cfg ())
todo |= TODO_update_ssa;
maybe_remove_unreachable_handlers ();
cleanup_dead_labels ();
group_case_labels ();
if ((flag_compare_debug_opt || flag_compare_debug)
&& flag_dump_final_insns)
{
FILE *final_output = fopen (flag_dump_final_insns, "a");
if (!final_output)
{
error ("could not open final insn dump file %qs: %m",
flag_dump_final_insns);
flag_dump_final_insns = NULL;
}
else
{
int save_unnumbered = flag_dump_unnumbered;
int save_noaddr = flag_dump_noaddr;
flag_dump_noaddr = flag_dump_unnumbered = 1;
fprintf (final_output, "\n");
dump_enumerated_decls (final_output, dump_flags | TDF_NOUID);
flag_dump_noaddr = save_noaddr;
flag_dump_unnumbered = save_unnumbered;
if (fclose (final_output))
{
error ("could not close final insn dump file %qs: %m",
flag_dump_final_insns);
flag_dump_final_insns = NULL;
}
}
}
return todo;
}
namespace {
const pass_data pass_data_cleanup_cfg_post_optimizing =
{
GIMPLE_PASS, /* type */
"optimized", /* name */
OPTGROUP_NONE, /* optinfo_flags */
false, /* has_gate */
true, /* has_execute */
TV_TREE_CLEANUP_CFG, /* tv_id */
PROP_cfg, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_remove_unused_locals, /* todo_flags_finish */
};
class pass_cleanup_cfg_post_optimizing : public gimple_opt_pass
{
public:
pass_cleanup_cfg_post_optimizing (gcc::context *ctxt)
: gimple_opt_pass (pass_data_cleanup_cfg_post_optimizing, ctxt)
{}
/* opt_pass methods: */
unsigned int execute () {
return execute_cleanup_cfg_post_optimizing ();
}
}; // class pass_cleanup_cfg_post_optimizing
} // anon namespace
gimple_opt_pass *
make_pass_cleanup_cfg_post_optimizing (gcc::context *ctxt)
{
return new pass_cleanup_cfg_post_optimizing (ctxt);
}
|
