gcc/config/vax/vax-modes.def

   1 /* VAX extra machine modes.
   2    Copyright (C) 2003-2024 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
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License 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 /* We just need to reset the floating point formats.  */
  21 RESET_FLOAT_FORMAT (SF, vax_f_format);
  22 RESET_FLOAT_FORMAT (DF, vax_d_format);
  23
  24 /* `DImode' addition and subtraction operations do their calculation
  25    on the low and then the high longword with separate instructions,
  26    and therefore only usably set N.  */
  27 CC_MODE (CCN);
  28 /* Non-arithmetic integer instructions such as MOV or XOR as well as
  29    instructions that produce a floating-point result only usably set
  30    N and Z.  */
  31 CC_MODE (CCNZ);
  32 /* The FFC and FFS instructions only usably set Z.  */
  33 CC_MODE (CCZ);