LCOV - code coverage report
Current view: top level - gcc - rtx-vector-builder.h (source / functions) Hit Total Coverage
Test: gcc.info Lines: 27 27 100.0 %
Date: 2020-03-28 11:57:23 Functions: 6 6 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* A class for building vector rtx constants.
       2                 :            :    Copyright (C) 2017-2020 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_RTX_VECTOR_BUILDER_H
      21                 :            : #define GCC_RTX_VECTOR_BUILDER_H
      22                 :            : 
      23                 :            : #include "vector-builder.h"
      24                 :            : 
      25                 :            : /* This class is used to build VECTOR_CSTs from a sequence of elements.
      26                 :            :    See vector_builder for more details.  */
      27                 :   25441171 : class rtx_vector_builder : public vector_builder<rtx, machine_mode,
      28                 :            :                                                  rtx_vector_builder>
      29                 :            : {
      30                 :            :   typedef vector_builder<rtx, machine_mode, rtx_vector_builder> parent;
      31                 :            :   friend class vector_builder<rtx, machine_mode, rtx_vector_builder>;
      32                 :            : 
      33                 :            : public:
      34                 :      16455 :   rtx_vector_builder () : m_mode (VOIDmode) {}
      35                 :            :   rtx_vector_builder (machine_mode, unsigned int, unsigned int);
      36                 :            :   rtx build (rtvec);
      37                 :            :   rtx build ();
      38                 :            : 
      39                 :            :   machine_mode mode () const { return m_mode; }
      40                 :            : 
      41                 :            :   void new_vector (machine_mode, unsigned int, unsigned int);
      42                 :            : 
      43                 :            : private:
      44                 :            :   bool equal_p (rtx, rtx) const;
      45                 :            :   bool allow_steps_p () const;
      46                 :            :   bool integral_p (rtx) const;
      47                 :            :   wide_int step (rtx, rtx) const;
      48                 :            :   rtx apply_step (rtx, unsigned int, const wide_int &) const;
      49                 :      59867 :   bool can_elide_p (rtx) const { return true; }
      50                 :     173159 :   void note_representative (rtx *, rtx) {}
      51                 :            : 
      52                 :      16455 :   static poly_uint64 shape_nelts (machine_mode mode)
      53                 :      16455 :     { return GET_MODE_NUNITS (mode); }
      54                 :      18693 :   static poly_uint64 nelts_of (const_rtx x)
      55                 :      18693 :     { return CONST_VECTOR_NUNITS (x); }
      56                 :       2238 :   static unsigned int npatterns_of (const_rtx x)
      57                 :      16455 :     { return CONST_VECTOR_NPATTERNS (x); }
      58                 :       2238 :   static unsigned int nelts_per_pattern_of (const_rtx x)
      59                 :      16455 :     { return CONST_VECTOR_NELTS_PER_PATTERN (x); }
      60                 :            : 
      61                 :            :   rtx find_cached_value ();
      62                 :            : 
      63                 :            :   machine_mode m_mode;
      64                 :            : };
      65                 :            : 
      66                 :            : /* Create a new builder for a vector of mode MODE.  Initially encode the
      67                 :            :    value as NPATTERNS interleaved patterns with NELTS_PER_PATTERN elements
      68                 :            :    each.  */
      69                 :            : 
      70                 :            : inline
      71                 :   25252809 : rtx_vector_builder::rtx_vector_builder (machine_mode mode,
      72                 :            :                                         unsigned int npatterns,
      73                 :   25252809 :                                         unsigned int nelts_per_pattern)
      74                 :            : {
      75                 :   25252809 :   new_vector (mode, npatterns, nelts_per_pattern);
      76                 :       4594 : }
      77                 :            : 
      78                 :            : /* Start building a new vector of mode MODE.  Initially encode the value
      79                 :            :    as NPATTERNS interleaved patterns with NELTS_PER_PATTERN elements each.  */
      80                 :            : 
      81                 :            : inline void
      82                 :   25269264 : rtx_vector_builder::new_vector (machine_mode mode, unsigned int npatterns,
      83                 :            :                                 unsigned int nelts_per_pattern)
      84                 :            : {
      85                 :   25269264 :   m_mode = mode;
      86                 :   50538528 :   parent::new_vector (GET_MODE_NUNITS (mode), npatterns, nelts_per_pattern);
      87                 :   25269264 : }
      88                 :            : 
      89                 :            : /* Return true if elements ELT1 and ELT2 are equal.  */
      90                 :            : 
      91                 :            : inline bool
      92                 :     380885 : rtx_vector_builder::equal_p (rtx elt1, rtx elt2) const
      93                 :            : {
      94                 :     380885 :   return rtx_equal_p (elt1, elt2);
      95                 :            : }
      96                 :            : 
      97                 :            : /* Return true if a stepped representation is OK.  We don't allow
      98                 :            :    linear series for anything other than integers, to avoid problems
      99                 :            :    with rounding.  */
     100                 :            : 
     101                 :            : inline bool
     102                 :            : rtx_vector_builder::allow_steps_p () const
     103                 :            : {
     104                 :            :   return is_a <scalar_int_mode> (GET_MODE_INNER (m_mode));
     105                 :            : }
     106                 :            : 
     107                 :            : /* Return true if element ELT can be interpreted as an integer.  */
     108                 :            : 
     109                 :            : inline bool
     110                 :     273828 : rtx_vector_builder::integral_p (rtx elt) const
     111                 :            : {
     112                 :      91276 :   return CONST_SCALAR_INT_P (elt);
     113                 :            : }
     114                 :            : 
     115                 :            : /* Return the value of element ELT2 minus the value of element ELT1.
     116                 :            :    Both elements are known to be CONST_SCALAR_INT_Ps.  */
     117                 :            : 
     118                 :            : inline wide_int
     119                 :     224271 : rtx_vector_builder::step (rtx elt1, rtx elt2) const
     120                 :            : {
     121                 :     448542 :   return wi::sub (rtx_mode_t (elt2, GET_MODE_INNER (m_mode)),
     122                 :     672813 :                   rtx_mode_t (elt1, GET_MODE_INNER (m_mode)));
     123                 :            : }
     124                 :            : 
     125                 :            : #endif

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.