fd3658b0e4
this macro was used inconsistently and only differs in behavior from DECLARE_ALIGNED when an alignment attribute is unavailable. this macro is used with calls to assembly, while generic c-code doesn't rely on it, so in a c-only build without an alignment attribute the code will function as expected. Change-Id: Ie9d06d4028c0de17c63b3a27e6c1b0491cc4ea79
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPX_PORTS_MEM_H_
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#define VPX_PORTS_MEM_H_
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#include "vpx_config.h"
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#include "vpx/vpx_integer.h"
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#if (defined(__GNUC__) && __GNUC__) || defined(__SUNPRO_C)
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#define DECLARE_ALIGNED(n,typ,val) typ val __attribute__ ((aligned (n)))
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#elif defined(_MSC_VER)
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#define DECLARE_ALIGNED(n,typ,val) __declspec(align(n)) typ val
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#else
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#warning No alignment directives known for this compiler.
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#define DECLARE_ALIGNED(n,typ,val) typ val
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#endif
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/* Indicates that the usage of the specified variable has been audited to assure
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* that it's safe to use uninitialized. Silences 'may be used uninitialized'
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* warnings on gcc.
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*/
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#if defined(__GNUC__) && __GNUC__
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#define UNINITIALIZED_IS_SAFE(x) x=x
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#else
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#define UNINITIALIZED_IS_SAFE(x) x
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#endif
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#if HAVE_NEON && defined(_MSC_VER)
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#define __builtin_prefetch(x)
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#endif
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#endif // VPX_PORTS_MEM_H_
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