Function npyv_divc_s8

numpy/core/src/common/simd/sse/arithmetic.h:112–120

// divide each signed 8-bit element by a precomputed divisor (round towards zero)
NPY_FINLINE npyv_s16 npyv_divc_s16(npyv_s16 a, const npyv_s16x3 divisor);
NPY_FINLINE npyv_s8 npyv_divc_s8(npyv_s8 a, const npyv_s8x3 divisor)
{
    const __m128i bmask = _mm_set1_epi32(0x00FF00FF);
    // instead of _mm_cvtepi8_epi16/_mm_packs_epi16 to wrap around overflow
    __m128i divc_even = npyv_divc_s16(_mm_srai_epi16(_mm_slli_epi16(a, 8), 8), divisor);
    __m128i divc_odd  = npyv_divc_s16(_mm_srai_epi16(a, 8), divisor);
            divc_odd  = _mm_slli_epi16(divc_odd, 8);
    return npyv_select_u8(bmask, divc_even, divc_odd);
}
// divide each unsigned 16-bit element by a precomputed divisor
NPY_FINLINE npyv_u16 npyv_divc_u16(npyv_u16 a, const npyv_u16x3 divisor)
{