1 /* Integration of the analyzer with GCC's pass manager.
2 Copyright (C) 2019-2020 Free Software Foundation, Inc.
3 Contributed by David Malcolm <dmalcolm@redhat.com>.
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
10 any later version.
11
12 GCC is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 #include "config.h"
22 #include "system.h"
23 #include "coretypes.h"
24 #include "context.h"
25 #include "tree-pass.h"
26 #include "diagnostic.h"
27 #include "options.h"
28 #include "analyzer/engine.h"
29
30 namespace {
31
32 /* Data for the analyzer pass. */
33
34 const pass_data pass_data_analyzer =
35 {
36 IPA_PASS, /* type */
37 "analyzer", /* name */
38 OPTGROUP_NONE, /* optinfo_flags */
39 TV_ANALYZER, /* tv_id */
40 PROP_ssa, /* properties_required */
41 0, /* properties_provided */
42 0, /* properties_destroyed */
43 0, /* todo_flags_start */
44 0, /* todo_flags_finish */
45 };
46
47 /* The analyzer pass. */
48
49 class pass_analyzer : public ipa_opt_pass_d
50 {
51 public:
pass_analyzer(gcc::context * ctxt)52 pass_analyzer(gcc::context *ctxt)
53 : ipa_opt_pass_d (pass_data_analyzer, ctxt,
54 NULL, /* generate_summary */
55 NULL, /* write_summary */
56 NULL, /* read_summary */
57 NULL, /* write_optimization_summary */
58 NULL, /* read_optimization_summary */
59 NULL, /* stmt_fixup */
60 0, /* function_transform_todo_flags_start */
61 NULL, /* function_transform */
62 NULL) /* variable_transform */
63 {}
64
65 /* opt_pass methods: */
66 bool gate (function *) FINAL OVERRIDE;
67 unsigned int execute (function *) FINAL OVERRIDE;
68 }; // class pass_analyzer
69
70 /* Only run the analyzer if -fanalyzer. */
71
72 bool
gate(function *)73 pass_analyzer::gate (function *)
74 {
75 return flag_analyzer != 0;
76 }
77
78 /* Entrypoint for the analyzer pass. */
79
80 unsigned int
execute(function *)81 pass_analyzer::execute (function *)
82 {
83 #if ENABLE_ANALYZER
84 ana::run_checkers ();
85 #else
86 sorry ("%qs was not enabled in this build of GCC"
87 " (missing configure-time option %qs)",
88 "-fanalyzer", "--enable-analyzer");
89 #endif
90
91 return 0;
92 }
93
94 } // anon namespace
95
96 /* Make an instance of the analyzer pass. */
97
98 ipa_opt_pass_d *
make_pass_analyzer(gcc::context * ctxt)99 make_pass_analyzer (gcc::context *ctxt)
100 {
101 return new pass_analyzer (ctxt);
102 }
103