LCOV - code coverage report
Current view: top level - gcc - ipa-ref.h (source / functions) Coverage Total Hit
Test: gcc.info Lines: 100.0 % 13 13
Test Date: 2024-09-28 13:20:55 Functions: 100.0 % 2 2
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: - 0 0

             Branch data     Line data    Source code
       1                 :             : /* IPA reference lists.
       2                 :             :    Copyright (C) 2010-2024 Free Software Foundation, Inc.
       3                 :             :    Contributed by Jan Hubicka
       4                 :             : 
       5                 :             : This file is part of GCC.
       6                 :             : 
       7                 :             : GCC is free software; you can redistribute it and/or modify it under
       8                 :             : the terms of the GNU General Public License as published by the Free
       9                 :             : Software Foundation; either version 3, or (at your option) any later
      10                 :             : version.
      11                 :             : 
      12                 :             : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      13                 :             : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      14                 :             : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      15                 :             : 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_IPA_REF_H
      22                 :             : #define GCC_IPA_REF_H
      23                 :             : 
      24                 :             : struct cgraph_node;
      25                 :             : struct varpool_node;
      26                 :             : struct symtab_node;
      27                 :             : 
      28                 :             : 
      29                 :             : /* How the reference is done.  */
      30                 :             : enum ipa_ref_use
      31                 :             : {
      32                 :             :   IPA_REF_LOAD,
      33                 :             :   IPA_REF_STORE,
      34                 :             :   IPA_REF_ADDR,
      35                 :             :   IPA_REF_ALIAS
      36                 :             : };
      37                 :             : 
      38                 :             : /* Record of reference in callgraph or varpool.  */
      39                 :             : struct ipa_ref
      40                 :             : {
      41                 :             : public:
      42                 :             :   /* Remove reference.  */
      43                 :             :   void remove_reference ();
      44                 :             : 
      45                 :             :   /* Return true when execution of reference can lead to return from
      46                 :             :      function.  */
      47                 :             :   bool cannot_lead_to_return ();
      48                 :             : 
      49                 :             :   /* Return true if reference may be used in address compare.  */
      50                 :             :   bool address_matters_p ();
      51                 :             : 
      52                 :             :   /* Return reference list this reference is in.  */
      53                 :             :   struct ipa_ref_list * referring_ref_list (void);
      54                 :             : 
      55                 :             :   /* Return reference list this reference is in.  */
      56                 :             :   struct ipa_ref_list * referred_ref_list (void);
      57                 :             : 
      58                 :             :   symtab_node *referring;
      59                 :             :   symtab_node *referred;
      60                 :             :   gimple *stmt;
      61                 :             :   unsigned int lto_stmt_uid;
      62                 :             :   unsigned int referred_index;
      63                 :             :   /* speculative id is used to link direct calls with their corresponding
      64                 :             :      IPA_REF_ADDR references when representing speculative calls.  */
      65                 :             :   unsigned int speculative_id : 16;
      66                 :             :   ENUM_BITFIELD (ipa_ref_use) use:3;
      67                 :             :   unsigned int speculative:1;
      68                 :             : };
      69                 :             : 
      70                 :             : typedef struct ipa_ref ipa_ref_t;
      71                 :             : 
      72                 :             : 
      73                 :             : /* List of references.  This is stored in both callgraph and varpool nodes.  */
      74                 :             : struct ipa_ref_list
      75                 :             : {
      76                 :             : public:
      77                 :             :   /* Return first reference in list or NULL if empty.  */
      78                 :             :   struct ipa_ref *first_reference (void)
      79                 :             :   {
      80                 :             :     if (!references.length ())
      81                 :             :       return NULL;
      82                 :             :     return &references[0];
      83                 :             :   }
      84                 :             : 
      85                 :             :   /* Return first referring ref in list or NULL if empty.  */
      86                 :         326 :   struct ipa_ref *first_referring (void)
      87                 :             :   {
      88                 :         326 :     if (!referring.length ())
      89                 :             :       return NULL;
      90                 :         114 :     return referring[0];
      91                 :             :   }
      92                 :             : 
      93                 :             :   /* Return first referring alias.  */
      94                 :             :   struct ipa_ref *first_alias (void)
      95                 :             :   {
      96                 :             :     struct ipa_ref *r = first_referring ();
      97                 :             : 
      98                 :             :     return r && r->use == IPA_REF_ALIAS ? r : NULL;
      99                 :             :   }
     100                 :             : 
     101                 :             :   /* Return last referring alias.  */
     102                 :       51603 :   struct ipa_ref *last_alias (void)
     103                 :             :   {
     104                 :       51603 :     unsigned int i = 0;
     105                 :             : 
     106                 :      361928 :     for(i = 0; i < referring.length (); i++)
     107                 :      130892 :       if (referring[i]->use != IPA_REF_ALIAS)
     108                 :             :         break;
     109                 :             : 
     110                 :       51603 :     return i == 0 ? NULL : referring[i - 1];
     111                 :             :   }
     112                 :             : 
     113                 :             :   /* Return true if the symbol has an alias.  */
     114                 :             :   bool inline has_aliases_p (void)
     115                 :             :   {
     116                 :             :     return first_alias ();
     117                 :             :   }
     118                 :             : 
     119                 :             :   /* Clear reference list.  */
     120                 :   114233035 :   void clear (void)
     121                 :             :   {
     122                 :   114233035 :     referring.create (0);
     123                 :   114233035 :     references.create (0);
     124                 :             :   }
     125                 :             : 
     126                 :             :   /* Return number of references.  */
     127                 :      442027 :   unsigned int nreferences (void)
     128                 :             :   {
     129                 :      509626 :     return references.length ();
     130                 :             :   }
     131                 :             : 
     132                 :             :   /* Store actual references in references vector.  */
     133                 :             :   vec<ipa_ref_t, va_heap, vl_ptr> references;
     134                 :             :   /* Referring is vector of pointers to references.  It must not live in GGC space
     135                 :             :      or GGC will try to mark middle of references vectors.  */
     136                 :             :   vec<ipa_ref_t *, va_heap, vl_ptr> referring;
     137                 :             : };
     138                 :             : 
     139                 :             : #endif /* GCC_IPA_REF_H */
        

Generated by: LCOV version 2.1-beta

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,rust,m2 --enable-host-shared. GCC test suite is run with the built compiler.