gcc/inchash.cc

   1 /* Incremential hashing for jhash.
   2    Copyright (C) 2014-2023 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 #ifdef GENERATOR_FILE
  21 #include "bconfig.h"
  22 #else
  23 #include "config.h"
  24 #endif
  25 #include "system.h"
  26 #include "coretypes.h"
  27 #include "real.h"
  28 #include "inchash.h"
  29
  30 namespace inchash
  31 {
  32
  33 /* This is here instead of inchash.h to keep us from having to put
  34    real.h in coretypes.h.  */
  35 void
  36 hash::add_real_value (const real_value &v)
  37 {
  38   add_int (v.cl);
  39   add_int (v.sign);
  40   switch (v.cl)
  41     {
  42     case rvc_zero:
  43     case rvc_inf:
  44       return;
  45     case rvc_normal:
  46       add_int (v.decimal);
  47       add_int (REAL_EXP (&v));
  48       break;
  49     case rvc_nan:
  50       add_int (v.signalling);
  51       add_int (v.canonical);
  52       if (v.canonical)
  53         return;
  54       break;
  55     default:
  56       gcc_unreachable ();
  57     }
  58   for (unsigned i = 0; i < SIGSZ; ++i)
  59     add_hwi (v.sig[i]);
  60 }
  61
  62 } // namespace inchash