File : s-lldosq-fpu.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- S Y S T E M . L I B M _ L O N G _ D O U B L E . S Q R T --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2014-2015, 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 3, 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. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- This is the Ada Cert Math specific implementation of sqrt when the FPU
33 -- has the sqrt instruction.
34
35 package body System.Libm_Long_Double.Squareroot is
36
37 --------------
38 -- Fpu_Sqrt --
39 --------------
40
41 function Fpu_Sqrt (X : Long_Long_Float) return Long_Long_Float
42 with Import, Convention => Intrinsic, External_Name => "__builtin_sqrtl";
43
44 ----------
45 -- Sqrt --
46 ----------
47
48 function Sqrt (X : Long_Long_Float) return Long_Long_Float is
49 begin
50 return Fpu_Sqrt (X);
51 end Sqrt;
52
53 end System.Libm_Long_Double.Squareroot;