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21 lines
417 B
21 lines
417 B
4 months ago
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#ifndef FMV_H
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#if HAVE_FUNC_ATTRIBUTE_IFUNC
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#if defined(__has_attribute)
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#if __has_attribute(target_clones)
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#if defined(__x86_64)
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// see https://gcc.gnu.org/wiki/FunctionMultiVersioning
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#define PF_TARGET_CLONES __attribute__((target_clones("avx","sse4.2","sse3","sse2","sse","default")))
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#define HAVE_PF_TARGET_CLONES 1
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#endif
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#endif
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#endif
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#endif
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#ifndef PF_TARGET_CLONES
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#define PF_TARGET_CLONES
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#endif
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#endif
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