1  /* Definitions 128-bit floating point precisions used by PowerPC.
       2     Copyright (C) 2018-2023 Free Software Foundation, Inc.
       3     Contributed by Michael Meissner (meissner@linux.ibm.com)
       4  
       5     This file is part of GCC.
       6  
       7     GCC is free software; you can redistribute it and/or modify it
       8     under the terms of the GNU General Public License as published
       9     by the Free Software Foundation; either version 3, or (at your
      10     option) any later version.
      11  
      12     GCC is distributed in the hope that it will be useful, but WITHOUT
      13     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      14     or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
      15     License 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  /* We order the 3 128-bit floating point types so that IFmode (IBM 128-bit
      22     floating point) is the 128-bit floating point type with the highest
      23     precision (128 bits).  This so that machine independent parts of the
      24     compiler do not try to widen IFmode to TFmode on ISA 3.0 (power9) that has
      25     hardware support for IEEE 128-bit.  We set TFmode (long double mode) in
      26     between, and KFmode (explicit __float128) below it.
      27  
      28     We won't encounter conversion from IEEE 128-bit to IBM 128-bit because we
      29     don't have insns to support the IBM 128-bit aritmetic operations.  */
      30  
      31  #ifndef RS6000_MODES_H
      32  #define RS6000_MODES_H		1
      33  #define FLOAT_PRECISION_IFmode	128
      34  #define FLOAT_PRECISION_TFmode	127
      35  #define FLOAT_PRECISION_KFmode	126
      36  #endif	/* RS6000_MODES_H */