gecko-dev/xpcom/glue/SSE.cpp

94 строки
3.0 KiB
C++
Исходник Обычный вид История

/* vim: set shiftwidth=4 tabstop=8 autoindent cindent expandtab: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is SSE.cpp
*
* The Initial Developer of the Original Code is the Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* L. David Baron <dbaron@dbaron.org>, Mozilla Corporation (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* compile-time and runtime tests for whether to use SSE instructions */
#include "SSE.h"
namespace mozilla {
namespace sse_private {
#if defined(MOZILLA_SSE_HAVE_CPUID_DETECTION)
#if !defined(MOZILLA_PRESUME_MMX)
bool mmx_enabled
= sse_private::has_cpuid_bit(1u, sse_private::edx, (1u<<23));
#endif
#if !defined(MOZILLA_PRESUME_SSE)
bool sse_enabled
= sse_private::has_cpuid_bit(1u, sse_private::edx, (1u<<25));
#endif
#if !defined(MOZILLA_PRESUME_SSE2)
bool sse2_enabled
= sse_private::has_cpuid_bit(1u, sse_private::edx, (1u<<26));
#endif
#if !defined(MOZILLA_PRESUME_SSE3)
bool sse3_enabled
= sse_private::has_cpuid_bit(1u, sse_private::ecx, (1u<<0));
#endif
#if !defined(MOZILLA_PRESUME_SSSE3)
bool ssse3_enabled
= sse_private::has_cpuid_bit(1u, sse_private::ecx, (1u<<9));
#endif
#if !defined(MOZILLA_PRESUME_SSE4A)
bool sse4a_enabled
= sse_private::has_cpuid_bit(0x80000001u, sse_private::ecx, (1u<<6));
#endif
#if !defined(MOZILLA_PRESUME_SSE4_1)
bool sse4_1_enabled
= sse_private::has_cpuid_bit(1u, sse_private::ecx, (1u<<19));
#endif
#if !defined(MOZILLA_PRESUME_SSE4_2)
bool sse4_2_enabled
= sse_private::has_cpuid_bit(1u, sse_private::ecx, (1u<<20));
#endif
#endif
}
}