AlignmentUtils.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef AlignmentUtils_h__

#define AlignmentUtils_h__

#define IS_ALIGNED16(ptr) ((((uintptr_t)ptr + 15) & ~0x0F) == (uintptr_t)ptr)

#ifdef DEBUG

#  define ASSERT_ALIGNED16(ptr)   \

    MOZ_ASSERT(IS_ALIGNED16(ptr), \

               #ptr " has to be aligned to a 16 byte boundary");

#else

#  define ASSERT_ALIGNED16(ptr)

#endif

#ifdef DEBUG

#  define ASSERT_MULTIPLE16(v) \

    MOZ_ASSERT(v % 16 == 0, #v " has to be a a multiple of 16");

#else

#  define ASSERT_MULTIPLE16(v)

#endif

#define ALIGNED16(ptr) (float*)(((uintptr_t)ptr + 15) & ~0x0F);

#endif