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23 lines
509 B
C
23 lines
509 B
C
//
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// arch/x86_64/fpu/cvt_f32_i64.h
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//
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// This file is subject to the terms and conditions defined in
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// 'LICENSE', which is part of this source code package.
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//
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#include "common.h"
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#include <emmintrin.h>
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#include <string.h>
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static inline void fpu_cvt_f32_i64(const uint64_t *fs, uint32_t *fd) {
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float fd_float;
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__m128 fd_reg;
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fd_reg = _mm_setzero_ps();
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fd_reg = _mm_cvtsi64_ss(fd_reg, *fs);
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fd_float = _mm_cvtss_f32(fd_reg);
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// Prevent aliasing.
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memcpy(fd, &fd_float, sizeof(fd_float));
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}
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