| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- E X P _ V F P T -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2012, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNAT; see file COPYING3. If not, go to -- |
| -- http://www.gnu.org/licenses for a complete copy of the license. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package contains specialized routines for handling the expansion |
| -- of arithmetic and conversion operations involving Vax format floating- |
| -- point formats as used on the Vax and the Alpha and the ia64. |
| |
| with Types; use Types; |
| with Uintp; use Uintp; |
| |
| package Exp_VFpt is |
| |
| procedure Expand_Vax_Arith (N : Node_Id); |
| -- The node N is an arithmetic node (N_Op_Abs, N_Op_Add, N_Op_Sub, |
| -- N_Op_Div, N_Op_Mul, N_Op_Minus where the operands are in Vax float |
| -- format. This procedure expands the necessary call. |
| |
| procedure Expand_Vax_Comparison (N : Node_Id); |
| -- The node N is an arithmetic comparison node where the types to be |
| -- compared are in Vax float format. This procedure expands the necessary |
| -- call. |
| |
| procedure Expand_Vax_Conversion (N : Node_Id); |
| -- The node N is a type conversion node where either the source or the |
| -- target type, or both, are Vax floating-point type. |
| |
| procedure Expand_Vax_Foreign_Return (N : Node_Id); |
| -- The node N is a call to a foreign function that returns a Vax float |
| -- value in a floating point register. Wraps the call in an asm stub |
| -- that moves the return value to an integer location on Alpha/VMS, |
| -- noop everywhere else. |
| |
| function Get_Vax_Real_Literal_As_Signed (N : Node_Id) return Uint; |
| -- Get the Vax binary representation of a real literal whose type is a Vax |
| -- floating-point type. This is used by gigi. Previously we expanded real |
| -- literal to a call to a LIB$OTS routine that performed the conversion. |
| -- This worked correctly from a funcional point of view, but was |
| -- inefficient and generated huge functions for aggregate initializations. |
| |
| procedure Expand_Vax_Valid (N : Node_Id); |
| -- The node N is an attribute reference node for the Valid attribute where |
| -- the prefix is of a Vax floating-point type. This procedure expands the |
| -- necessary call for the validity test. |
| |
| end Exp_VFpt; |