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69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
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/*******************************************************************************
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MIT License
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-----------
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Copyright (c) 2002-2019 Advanced Micro Devices, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this Software and associated documentaon files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*******************************************************************************/
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#ifdef TEST_STANDALONE
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#include <stdio.h>
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#ifdef _MSC_VER
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#pragma section (".CRT$XIC",long,read)
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#define _CRTALLOC(x) __declspec(allocate(x))
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#endif /* _MSC_VER */
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#else
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#include <intrin.h>
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#include <sect_attribs.h>
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#undef _CRTALLOC
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#define _CRTALLOC(x)
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#endif
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typedef int (__cdecl *_PIFV)(void); // FIXME: include process.h?
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int __fma3_is_available = 0;
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int __use_fma3_lib = 0;
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int __cdecl _set_FMA3_enable(int flag)
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{
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if (__fma3_is_available) __use_fma3_lib = flag;
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return __use_fma3_lib;
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}
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int __fma3_lib_init(void);
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_CRTALLOC(".CRT$XIC") static _PIFV init_fma3 = __fma3_lib_init;
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int __fma3_lib_init(void)
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{
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int CPUID[4]; // CPUID[2] is ECX;
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__fma3_is_available = 0;
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__cpuid(CPUID, 1);
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if (CPUID[2] & (1 << 12)) {
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__fma3_is_available = 1;
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}
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__use_fma3_lib = __fma3_is_available;
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return 0;
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}
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