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145
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1 /* Integration of the analyzer with GCC's pass manager.
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2 Copyright (C) 2019-2020 Free Software Foundation, Inc.
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3 Contributed by David Malcolm <dmalcolm@redhat.com>.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #include "config.h"
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22 #include "system.h"
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23 #include "coretypes.h"
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24 #include "context.h"
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25 #include "tree-pass.h"
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26 #include "diagnostic.h"
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27 #include "options.h"
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28 #include "analyzer/engine.h"
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29
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30 namespace {
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31
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32 /* Data for the analyzer pass. */
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33
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34 const pass_data pass_data_analyzer =
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35 {
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36 IPA_PASS, /* type */
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37 "analyzer", /* name */
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38 OPTGROUP_NONE, /* optinfo_flags */
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39 TV_ANALYZER, /* tv_id */
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40 PROP_ssa, /* properties_required */
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41 0, /* properties_provided */
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42 0, /* properties_destroyed */
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43 0, /* todo_flags_start */
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44 0, /* todo_flags_finish */
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45 };
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46
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47 /* The analyzer pass. */
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48
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49 class pass_analyzer : public ipa_opt_pass_d
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50 {
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51 public:
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52 pass_analyzer(gcc::context *ctxt)
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53 : ipa_opt_pass_d (pass_data_analyzer, ctxt,
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54 NULL, /* generate_summary */
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55 NULL, /* write_summary */
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56 NULL, /* read_summary */
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57 NULL, /* write_optimization_summary */
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58 NULL, /* read_optimization_summary */
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59 NULL, /* stmt_fixup */
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60 0, /* function_transform_todo_flags_start */
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61 NULL, /* function_transform */
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62 NULL) /* variable_transform */
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63 {}
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64
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65 /* opt_pass methods: */
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66 bool gate (function *) FINAL OVERRIDE;
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67 unsigned int execute (function *) FINAL OVERRIDE;
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68 }; // class pass_analyzer
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69
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70 /* Only run the analyzer if -fanalyzer. */
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71
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72 bool
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73 pass_analyzer::gate (function *)
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74 {
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75 return flag_analyzer != 0;
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76 }
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77
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78 /* Entrypoint for the analyzer pass. */
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79
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80 unsigned int
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81 pass_analyzer::execute (function *)
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82 {
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83 #if ENABLE_ANALYZER
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84 ana::run_checkers ();
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85 #else
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86 sorry ("%qs was not enabled in this build of GCC"
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87 " (missing configure-time option %qs)",
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88 "-fanalyzer", "--enable-analyzer");
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89 #endif
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90
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91 return 0;
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92 }
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93
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94 } // anon namespace
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95
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96 /* Make an instance of the analyzer pass. */
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97
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98 ipa_opt_pass_d *
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99 make_pass_analyzer (gcc::context *ctxt)
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100 {
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101 return new pass_analyzer (ctxt);
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102 }
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