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author | Jing Yu <jingyu@google.com> | 2010-07-22 14:03:48 -0700 |
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committer | Jing Yu <jingyu@google.com> | 2010-07-22 14:03:48 -0700 |
commit | b094d6c4bf572654a031ecc4afe675154c886dc5 (patch) | |
tree | 89394c56b05e13a5413ee60237d65b0214fd98e2 /gcc-4.4.3/gcc/ada/s-veboop.ads | |
parent | dc34721ac3bf7e3c406fba8cfe9d139393345ec5 (diff) | |
download | toolchain_gcc-b094d6c4bf572654a031ecc4afe675154c886dc5.tar.gz toolchain_gcc-b094d6c4bf572654a031ecc4afe675154c886dc5.tar.bz2 toolchain_gcc-b094d6c4bf572654a031ecc4afe675154c886dc5.zip |
commit gcc-4.4.3 which is used to build gcc-4.4.3 Android toolchain in master.
The source is based on fsf gcc-4.4.3 and contains local patches which
are recorded in gcc-4.4.3/README.google.
Change-Id: Id8c6d6927df274ae9749196a1cc24dbd9abc9887
Diffstat (limited to 'gcc-4.4.3/gcc/ada/s-veboop.ads')
-rw-r--r-- | gcc-4.4.3/gcc/ada/s-veboop.ads | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gcc-4.4.3/gcc/ada/s-veboop.ads b/gcc-4.4.3/gcc/ada/s-veboop.ads new file mode 100644 index 000000000..9553dd1d9 --- /dev/null +++ b/gcc-4.4.3/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 -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- 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; |