From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/ada/s-veboop.ads | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 gcc/ada/s-veboop.ads (limited to 'gcc/ada/s-veboop.ads') diff --git a/gcc/ada/s-veboop.ads b/gcc/ada/s-veboop.ads new file mode 100644 index 000000000..9553dd1d9 --- /dev/null +++ b/gcc/ada/s-veboop.ads @@ -0,0 +1,66 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- +-- -- +-- S Y S T E M . V E C T O R S . B O O L E A N _ O P E R A T I O N S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2002-2009, 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. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- . -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains functions for runtime operations on boolean vectors + +package System.Vectors.Boolean_Operations is + pragma Pure; + + -- Although in general the boolean operations on arrays of booleans are + -- identical to operations on arrays of unsigned words of the same size, + -- for the "not" operator this is not the case as False is typically + -- represented by 0 and true by 1. + + function "not" (Item : Vectors.Vector) return Vectors.Vector; + + -- The three boolean operations "nand", "nor" and "nxor" are needed + -- for cases where the compiler moves boolean array operations into + -- the body of the loop that iterates over the array elements. + + -- Note the following equivalences: + -- (not X) or (not Y) = not (X and Y) = Nand (X, Y) + -- (not X) and (not Y) = not (X or Y) = Nor (X, Y) + -- (not X) xor (not Y) = X xor Y + -- X xor (not Y) = not (X xor Y) = Nxor (X, Y) + + function Nand (Left, Right : Boolean) return Boolean; + function Nor (Left, Right : Boolean) return Boolean; + function Nxor (Left, Right : Boolean) return Boolean; + + function Nand (Left, Right : Vectors.Vector) return Vectors.Vector; + function Nor (Left, Right : Vectors.Vector) return Vectors.Vector; + function Nxor (Left, Right : Vectors.Vector) return Vectors.Vector; + + pragma Inline_Always ("not"); + pragma Inline_Always (Nand); + pragma Inline_Always (Nor); + pragma Inline_Always (Nxor); +end System.Vectors.Boolean_Operations; -- cgit v1.2.3