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51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
#if !defined _X86INTRIN_H_INCLUDED && !defined _IMMINTRIN_H_INCLUDED
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#error "Never use <lzcntintrin.h> directly; include <x86intrin.h> instead."
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#endif
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#ifndef _LZCNTINTRIN_H_INCLUDED
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#define _LZCNTINTRIN_H_INCLUDED
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#ifndef __LZCNT__
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#pragma GCC push_options
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#pragma GCC target("lzcnt")
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#define __DISABLE_LZCNT__
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#endif /* __LZCNT__ */
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extern __inline unsigned short
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__attribute__((__gnu_inline__, __always_inline__, __artificial__))
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__lzcnt16(unsigned short __X) {
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return __builtin_ia32_lzcnt_u16(__X);
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}
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extern __inline unsigned int
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__attribute__((__gnu_inline__, __always_inline__, __artificial__))
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__lzcnt32(unsigned int __X) {
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return __builtin_ia32_lzcnt_u32(__X);
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}
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extern __inline unsigned int
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__attribute__((__gnu_inline__, __always_inline__, __artificial__))
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_lzcnt_u32(unsigned int __X) {
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return __builtin_ia32_lzcnt_u32(__X);
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}
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#ifdef __x86_64__
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extern __inline unsigned long long
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__attribute__((__gnu_inline__, __always_inline__, __artificial__))
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__lzcnt64(unsigned long long __X) {
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return __builtin_ia32_lzcnt_u64(__X);
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}
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extern __inline unsigned long long
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__attribute__((__gnu_inline__, __always_inline__, __artificial__))
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_lzcnt_u64(unsigned long long __X) {
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return __builtin_ia32_lzcnt_u64(__X);
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}
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#endif
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#ifdef __DISABLE_LZCNT__
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#undef __DISABLE_LZCNT__
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#pragma GCC pop_options
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#endif /* __DISABLE_LZCNT__ */
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#endif /* _LZCNTINTRIN_H_INCLUDED */
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