dfdc466dc1
The instruction is "RDRAND", but the feature name, according to GCC, is RDRND, so I had to change some macros in qsimd_p.h. Change-Id: Icd0e0d4b27cb4e5eb892fffd14b5166779137e63 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
57 lines
2.2 KiB
C++
57 lines
2.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2017 Intel Corporation.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the config.tests of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <immintrin.h>
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int main(int, char**)
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{
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unsigned short us;
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unsigned int ui;
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if (_rdrand16_step(&us))
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return 1;
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if (_rdrand32_step(&ui))
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return 1;
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#if defined(__x86_64) || defined(__x86_64__) || defined(__amd64) || defined(_M_X64)
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unsigned long long ull;
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if (_rdrand64_step(&ull))
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return 1;
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#endif
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return 0;
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}
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