LCOV - code coverage report
Current view: top level - gcc - tree-phinodes.h (source / functions) Hit Total Coverage
Test: gcc.info Lines: 12 12 100.0 %
Date: 2020-04-04 11:58:09 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* Header file for PHI node routines
       2                 :            :    Copyright (C) 2013-2020 Free Software Foundation, Inc.
       3                 :            : 
       4                 :            : This file is part of GCC.
       5                 :            : 
       6                 :            : GCC is free software; you can redistribute it and/or modify it under
       7                 :            : the terms of the GNU General Public License as published by the Free
       8                 :            : Software Foundation; either version 3, or (at your option) any later
       9                 :            : version.
      10                 :            : 
      11                 :            : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12                 :            : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13                 :            : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14                 :            :  for more details.
      15                 :            : 
      16                 :            : You should have received a copy of the GNU General Public License
      17                 :            : along with GCC; see the file COPYING3.  If not see
      18                 :            : <http://www.gnu.org/licenses/>.  */
      19                 :            : 
      20                 :            : #ifndef GCC_TREE_PHINODES_H
      21                 :            : #define GCC_TREE_PHINODES_H
      22                 :            : 
      23                 :            : extern void phinodes_print_statistics (void);
      24                 :            : extern void reserve_phi_args_for_new_edge (basic_block);
      25                 :            : extern void add_phi_node_to_bb (gphi *phi, basic_block bb);
      26                 :            : extern gphi *create_phi_node (tree, basic_block);
      27                 :            : extern void add_phi_arg (gphi *, tree, edge, location_t);
      28                 :            : extern void remove_phi_args (edge);
      29                 :            : extern void remove_phi_node (gimple_stmt_iterator *, bool);
      30                 :            : extern void remove_phi_nodes (basic_block);
      31                 :            : extern tree degenerate_phi_result (gphi *);
      32                 :            : extern void set_phi_nodes (basic_block, gimple_seq);
      33                 :            : 
      34                 :            : static inline use_operand_p
      35                 : 1126114046 : gimple_phi_arg_imm_use_ptr (gimple *gs, int i)
      36                 :            : {
      37                 : 1318541101 :   return &gimple_phi_arg (gs, i)->imm_use;
      38                 :            : }
      39                 :            : 
      40                 :            : /* Return the phi argument which contains the specified use.  */
      41                 :            : 
      42                 :            : static inline int
      43                 :  101487265 : phi_arg_index_from_use (use_operand_p use)
      44                 :            : {
      45                 :  101487265 :   struct phi_arg_d *element, *root;
      46                 :  101487265 :   size_t index;
      47                 :  101487265 :   gimple *phi;
      48                 :            : 
      49                 :            :   /* Since the use is the first thing in a PHI argument element, we can
      50                 :            :      calculate its index based on casting it to an argument, and performing
      51                 :            :      pointer arithmetic.  */
      52                 :            : 
      53                 :  101487265 :   phi = USE_STMT (use);
      54                 :            : 
      55                 :  101487265 :   element = (struct phi_arg_d *)use;
      56                 :  101487265 :   root = gimple_phi_arg (phi, 0);
      57                 :  101487265 :   index = element - root;
      58                 :            : 
      59                 :            :   /* Make sure the calculation doesn't have any leftover bytes.  If it does,
      60                 :            :      then imm_use is likely not the first element in phi_arg_d.  */
      61                 :  202974546 :   gcc_checking_assert ((((char *)element - (char *)root)
      62                 :            :                         % sizeof (struct phi_arg_d)) == 0
      63                 :            :                        && index < gimple_phi_capacity (phi));
      64                 :            : 
      65                 :  101487265 :  return index;
      66                 :            : }
      67                 :            : 
      68                 :            : #endif /* GCC_TREE_PHINODES_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.