gcc/ada/exp_vfpt.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             E X P _ V F P T                              --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --             Copyright (C) 1997 Free Software Foundation, Inc.            --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 --  This package contains specialized routines for handling the expansion
  28 --  of arithmetic and conversion operations involving Vax format floating-
  29 --  point formats as used on the Vax and the Alpha.
  30
  31 with Types; use Types;
  32
  33 package Exp_VFpt is
  34
  35    procedure Expand_Vax_Arith (N : Node_Id);
  36    --  The node N is an arithmetic node (N_Op_Abs, N_Op_Add, N_Op_Sub,
  37    --  N_Op_Div, N_Op_Mul, N_Op_Minus where the operands are in Vax
  38    --  float format. This procedure expands the necessary call.
  39
  40    procedure Expand_Vax_Comparison (N : Node_Id);
  41    --  The node N is an arithmetic comparison node where the types to
  42    --  be compared are in Vax float format. This procedure expands the
  43    --  necessary call.
  44
  45    procedure Expand_Vax_Conversion (N : Node_Id);
  46    --  The node N is a type conversion node where either the source or
  47    --  the target type, or both, are Vax floating-point type.
  48
  49    procedure Expand_Vax_Real_Literal (N : Node_Id);
  50    --  The node N is a real literal node where the type is a Vax
  51    --  floating-point type. This procedure rewrites the node to eliminate
  52    --  the occurrence of such constants.
  53
  54 end Exp_VFpt;