1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef AlignmentUtils_h__
8 #define AlignmentUtils_h__
9 
10 #define IS_ALIGNED16(ptr) ((((uintptr_t)ptr + 15) & ~0x0F) == (uintptr_t)ptr)
11 
12 #ifdef DEBUG
13 #  define ASSERT_ALIGNED16(ptr)   \
14     MOZ_ASSERT(IS_ALIGNED16(ptr), \
15                #ptr " has to be aligned to a 16 byte boundary");
16 #else
17 #  define ASSERT_ALIGNED16(ptr)
18 #endif
19 
20 #ifdef DEBUG
21 #  define ASSERT_MULTIPLE16(v) \
22     MOZ_ASSERT(v % 16 == 0, #v " has to be a a multiple of 16");
23 #else
24 #  define ASSERT_MULTIPLE16(v)
25 #endif
26 
27 #define ALIGNED16(ptr) (float*)(((uintptr_t)ptr + 15) & ~0x0F);
28 
29 #endif
30