LCOV - code coverage report
Current view: top level - gcc/analyzer - diagnostic-manager.h (source / functions) Hit Total Coverage
Test: gcc.info Lines: 13 19 68.4 %
Date: 2020-03-28 11:57:23 Functions: 0 0 -
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* Classes for saving, deduplicating, and emitting analyzer diagnostics.
       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                 :            : #ifndef GCC_ANALYZER_DIAGNOSTIC_MANAGER_H
      22                 :            : #define GCC_ANALYZER_DIAGNOSTIC_MANAGER_H
      23                 :            : 
      24                 :            : namespace ana {
      25                 :            : 
      26                 :            : /* A to-be-emitted diagnostic stored within diagnostic_manager.  */
      27                 :            : 
      28                 :            : class saved_diagnostic
      29                 :            : {
      30                 :            : public:
      31                 :            :   enum status
      32                 :            :   {
      33                 :            :    STATUS_NEW,
      34                 :            :    STATUS_INFEASIBLE_PATH,
      35                 :            :    STATUS_FEASIBLE_PATH
      36                 :            :   };
      37                 :            : 
      38                 :            :   saved_diagnostic (const state_machine *sm,
      39                 :            :                     const exploded_node *enode,
      40                 :            :                     const supernode *snode, const gimple *stmt,
      41                 :            :                     stmt_finder *stmt_finder,
      42                 :            :                     tree var, state_machine::state_t state,
      43                 :            :                     pending_diagnostic *d);
      44                 :            :   ~saved_diagnostic ();
      45                 :            : 
      46                 :            :   bool operator== (const saved_diagnostic &other) const;
      47                 :            : 
      48                 :        334 :   void set_feasible ()
      49                 :            :   {
      50                 :        334 :     gcc_assert (m_status == STATUS_NEW);
      51                 :        334 :     m_status = STATUS_FEASIBLE_PATH;
      52                 :            :   }
      53                 :        129 :   void set_infeasible (feasibility_problem *p)
      54                 :            :   {
      55                 :        129 :     gcc_assert (m_status == STATUS_NEW);
      56                 :        129 :     m_status = STATUS_INFEASIBLE_PATH;
      57                 :        129 :     m_problem = p; // take ownership
      58                 :            :   }
      59                 :          0 :   const feasibility_problem *get_feasibility_problem () const
      60                 :            :   {
      61                 :          0 :     return m_problem;
      62                 :            :   }
      63                 :            : 
      64                 :          0 :   enum status get_status () const { return m_status; }
      65                 :            : 
      66                 :        463 :   void set_epath_length (unsigned length) { m_epath_length = length; }
      67                 :          0 :   unsigned get_epath_length () const { return m_epath_length; }
      68                 :            : 
      69                 :            :   //private:
      70                 :            :   const state_machine *m_sm;
      71                 :            :   const exploded_node *m_enode;
      72                 :            :   const supernode *m_snode;
      73                 :            :   const gimple *m_stmt;
      74                 :            :   stmt_finder *m_stmt_finder;
      75                 :            :   tree m_var;
      76                 :            :   state_machine::state_t m_state;
      77                 :            :   pending_diagnostic *m_d;
      78                 :            :   exploded_edge *m_trailing_eedge;
      79                 :            : 
      80                 :            : private:
      81                 :            :   DISABLE_COPY_AND_ASSIGN (saved_diagnostic);
      82                 :            : 
      83                 :            :   enum status m_status;
      84                 :            :   unsigned m_epath_length;
      85                 :            :   feasibility_problem *m_problem;
      86                 :            : };
      87                 :            : 
      88                 :            : class path_builder;
      89                 :            : 
      90                 :            : /* A class with responsibility for saving pending diagnostics, so that
      91                 :            :    they can be emitted after the exploded_graph is complete.
      92                 :            :    This lets us de-duplicate diagnostics, and find the shortest path
      93                 :            :    for each similar diagnostic, potentially using edges that might
      94                 :            :    not have been found when each diagnostic was first saved.
      95                 :            : 
      96                 :            :    This also lets us compute shortest_paths once, rather than
      97                 :            :    per-diagnostic.  */
      98                 :            : 
      99                 :        377 : class diagnostic_manager : public log_user
     100                 :            : {
     101                 :            : public:
     102                 :            :   diagnostic_manager (logger *logger, int verbosity);
     103                 :            : 
     104                 :            :   void add_diagnostic (const state_machine *sm,
     105                 :            :                        const exploded_node *enode,
     106                 :            :                        const supernode *snode, const gimple *stmt,
     107                 :            :                        stmt_finder *finder,
     108                 :            :                        tree var, state_machine::state_t state,
     109                 :            :                        pending_diagnostic *d);
     110                 :            : 
     111                 :            :   void add_diagnostic (const exploded_node *enode,
     112                 :            :                        const supernode *snode, const gimple *stmt,
     113                 :            :                        stmt_finder *finder,
     114                 :            :                        pending_diagnostic *d);
     115                 :            : 
     116                 :            :   void emit_saved_diagnostics (const exploded_graph &eg);
     117                 :            : 
     118                 :            :   void emit_saved_diagnostic (const exploded_graph &eg,
     119                 :            :                               const saved_diagnostic &sd,
     120                 :            :                               const exploded_path &epath,
     121                 :            :                               const gimple *stmt,
     122                 :            :                               int num_dupes);
     123                 :            : 
     124                 :        172 :   unsigned get_num_diagnostics () const
     125                 :            :   {
     126                 :        172 :     return m_saved_diagnostics.length ();
     127                 :            :   }
     128                 :          3 :   saved_diagnostic *get_saved_diagnostic (unsigned idx)
     129                 :            :   {
     130                 :          3 :     return m_saved_diagnostics[idx];
     131                 :            :   }
     132                 :          0 :   const saved_diagnostic *get_saved_diagnostic (unsigned idx) const
     133                 :            :   {
     134                 :          0 :     return m_saved_diagnostics[idx];
     135                 :            :   }
     136                 :            : 
     137                 :            : private:
     138                 :            :   void build_emission_path (const path_builder &pb,
     139                 :            :                             const exploded_path &epath,
     140                 :            :                             checker_path *emission_path) const;
     141                 :            : 
     142                 :            :   void add_events_for_eedge (const path_builder &pb,
     143                 :            :                              const exploded_edge &eedge,
     144                 :            :                              checker_path *emission_path) const;
     145                 :            : 
     146                 :            :   bool significant_edge_p (const path_builder &pb,
     147                 :            :                            const exploded_edge &eedge) const;
     148                 :            : 
     149                 :            :   void add_events_for_superedge (const path_builder &pb,
     150                 :            :                                  const exploded_edge &eedge,
     151                 :            :                                  checker_path *emission_path) const;
     152                 :            : 
     153                 :            :   void prune_path (checker_path *path,
     154                 :            :                    const state_machine *sm,
     155                 :            :                    tree var, state_machine::state_t state) const;
     156                 :            : 
     157                 :            :   void prune_for_sm_diagnostic (checker_path *path,
     158                 :            :                                 const state_machine *sm,
     159                 :            :                                 tree var,
     160                 :            :                                 state_machine::state_t state) const;
     161                 :            :   void update_for_unsuitable_sm_exprs (tree *expr) const;
     162                 :            :   void prune_interproc_events (checker_path *path) const;
     163                 :            :   void finish_pruning (checker_path *path) const;
     164                 :            : 
     165                 :            :   auto_delete_vec<saved_diagnostic> m_saved_diagnostics;
     166                 :            :   const int m_verbosity;
     167                 :            : };
     168                 :            : 
     169                 :            : } // namespace ana
     170                 :            : 
     171                 :            : #endif /* GCC_ANALYZER_DIAGNOSTIC_MANAGER_H */

Generated by: LCOV version 1.0

LCOV profile is generated on x86_64 machine using following configure options: configure --disable-bootstrap --enable-coverage=opt --enable-languages=c,c++,fortran,go,jit,lto --enable-host-shared. GCC test suite is run with the built compiler.