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/*
* Copyright (c) 2003, 2007-11 Matteo Frigo
* Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "ifftw.h"
#if HAVE_AVX
#if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64)
#include "amd64-cpuid.h"
int X(have_simd_avx)(void)
{
static int init = 0, res;
if (!init) {
res = 1
&& ((cpuid_ecx(1) & 0x18000000) == 0x18000000)
&& ((xgetbv_eax(0) & 0x6) == 0x6);
init = 1;
}
return res;
}
#else /* 32-bit code */
#include "x86-cpuid.h"
int X(have_simd_avx)(void)
{
static int init = 0, res;
if (!init) {
res = !is_386()
&& has_cpuid()
&& ((cpuid_ecx(1) & 0x18000000) == 0x18000000)
&& ((xgetbv_eax(0) & 0x6) == 0x6);
init = 1;
}
return res;
}
#endif
#endif
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