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#include <assert.h> |
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#include <emmintrin.h> |
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#include <xnnpack/common.h> |
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#include <xnnpack/vcvt.h> |
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void xnn_f16_f32_vcvt_ukernel__sse2_int16_x32( |
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size_t batch, |
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const void* input, |
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float* output, |
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const union xnn_f16_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS |
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{ |
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assert(batch != 0); |
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assert(batch % sizeof(uint16_t) == 0); |
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assert(input != NULL); |
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assert(output != NULL); |
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const __m128i vsign_mask = _mm_load_si128((const __m128i*) params->sse_int16.sign_mask); |
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const __m128i vexp_offset = _mm_load_si128((const __m128i*) params->sse_int16.exp_offset); |
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const __m128 vexp_scale = _mm_load_ps(params->sse_int16.exp_scale); |
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const __m128i vmagic_mask = _mm_load_si128((const __m128i*) params->sse_int16.magic_mask); |
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const __m128 vmagic_bias = _mm_load_ps(params->sse_int16.magic_bias); |
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const __m128i vdenorm_cutoff = _mm_load_si128((const __m128i*) params->sse_int16.denorm_cutoff); |
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const uint16_t* i = (const uint16_t*) input; |
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for (; batch >= 32 * sizeof(uint16_t); batch -= 32 * sizeof(uint16_t)) { |
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const __m128i vh0 = _mm_loadu_si128((const __m128i*) i); |
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const __m128i vh1 = _mm_loadu_si128((const __m128i*) (i + 8)); |
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const __m128i vh2 = _mm_loadu_si128((const __m128i*) (i + 16)); |
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const __m128i vh3 = _mm_loadu_si128((const __m128i*) (i + 24)); |
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i += 32; |
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const __m128i vsign0 = _mm_and_si128(vh0, vsign_mask); |
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const __m128i vsign1 = _mm_and_si128(vh1, vsign_mask); |
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const __m128i vsign2 = _mm_and_si128(vh2, vsign_mask); |
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const __m128i vsign3 = _mm_and_si128(vh3, vsign_mask); |
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const __m128i vnonsign0 = _mm_xor_si128(vh0, vsign0); |
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const __m128i vnonsign1 = _mm_xor_si128(vh1, vsign1); |
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const __m128i vnonsign2 = _mm_xor_si128(vh2, vsign2); |
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const __m128i vnonsign3 = _mm_xor_si128(vh3, vsign3); |
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const __m128i vprenorm0 = _mm_slli_epi16(vnonsign0, 13); |
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const __m128i vprenorm1 = _mm_add_epi16(_mm_srli_epi16(vnonsign0, 3), vexp_offset); |
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const __m128i vprenorm2 = _mm_slli_epi16(vnonsign1, 13); |
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const __m128i vprenorm3 = _mm_add_epi16(_mm_srli_epi16(vnonsign1, 3), vexp_offset); |
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const __m128i vprenorm4 = _mm_slli_epi16(vnonsign2, 13); |
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const __m128i vprenorm5 = _mm_add_epi16(_mm_srli_epi16(vnonsign2, 3), vexp_offset); |
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const __m128i vprenorm6 = _mm_slli_epi16(vnonsign3, 13); |
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const __m128i vprenorm7 = _mm_add_epi16(_mm_srli_epi16(vnonsign3, 3), vexp_offset); |
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const __m128i vnorm0 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vprenorm0, vprenorm1)), vexp_scale)); |
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const __m128i vnorm1 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vprenorm0, vprenorm1)), vexp_scale)); |
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const __m128i vnorm2 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vprenorm2, vprenorm3)), vexp_scale)); |
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const __m128i vnorm3 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vprenorm2, vprenorm3)), vexp_scale)); |
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const __m128i vnorm4 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vprenorm4, vprenorm5)), vexp_scale)); |
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const __m128i vnorm5 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vprenorm4, vprenorm5)), vexp_scale)); |
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const __m128i vnorm6 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vprenorm6, vprenorm7)), vexp_scale)); |
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const __m128i vnorm7 = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vprenorm6, vprenorm7)), vexp_scale)); |
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const __m128i vdenorm0 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vnonsign0, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm1 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vnonsign0, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm2 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vnonsign1, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm3 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vnonsign1, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm4 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vnonsign2, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm5 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vnonsign2, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm6 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vnonsign3, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm7 = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vnonsign3, vmagic_mask)), vmagic_bias)); |
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const __m128i vmask0 = _mm_cmpgt_epi16(vnonsign0, vdenorm_cutoff); |
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const __m128i vmask1 = _mm_cmpgt_epi16(vnonsign1, vdenorm_cutoff); |
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const __m128i vmask2 = _mm_cmpgt_epi16(vnonsign2, vdenorm_cutoff); |
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const __m128i vmask3 = _mm_cmpgt_epi16(vnonsign3, vdenorm_cutoff); |
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const __m128i vxmask0 = _mm_unpacklo_epi16(vmask0, vmask0); |
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const __m128i vf0 = _mm_or_si128(_mm_unpacklo_epi16(_mm_setzero_si128(), vsign0), |
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_mm_or_si128(_mm_and_si128(vxmask0, vnorm0), _mm_andnot_si128(vxmask0, vdenorm0))); |
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const __m128i vxmask1 = _mm_unpackhi_epi16(vmask0, vmask0); |
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const __m128i vf1 = _mm_or_si128(_mm_unpackhi_epi16(_mm_setzero_si128(), vsign0), |
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_mm_or_si128(_mm_and_si128(vxmask1, vnorm1), _mm_andnot_si128(vxmask1, vdenorm1))); |
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const __m128i vxmask2 = _mm_unpacklo_epi16(vmask1, vmask1); |
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const __m128i vf2 = _mm_or_si128(_mm_unpacklo_epi16(_mm_setzero_si128(), vsign1), |
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_mm_or_si128(_mm_and_si128(vxmask2, vnorm2), _mm_andnot_si128(vxmask2, vdenorm2))); |
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const __m128i vxmask3 = _mm_unpackhi_epi16(vmask1, vmask1); |
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const __m128i vf3 = _mm_or_si128(_mm_unpackhi_epi16(_mm_setzero_si128(), vsign1), |
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_mm_or_si128(_mm_and_si128(vxmask3, vnorm3), _mm_andnot_si128(vxmask3, vdenorm3))); |
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const __m128i vxmask4 = _mm_unpacklo_epi16(vmask2, vmask2); |
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const __m128i vf4 = _mm_or_si128(_mm_unpacklo_epi16(_mm_setzero_si128(), vsign2), |
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_mm_or_si128(_mm_and_si128(vxmask4, vnorm4), _mm_andnot_si128(vxmask4, vdenorm4))); |
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const __m128i vxmask5 = _mm_unpackhi_epi16(vmask2, vmask2); |
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const __m128i vf5 = _mm_or_si128(_mm_unpackhi_epi16(_mm_setzero_si128(), vsign2), |
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_mm_or_si128(_mm_and_si128(vxmask5, vnorm5), _mm_andnot_si128(vxmask5, vdenorm5))); |
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const __m128i vxmask6 = _mm_unpacklo_epi16(vmask3, vmask3); |
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const __m128i vf6 = _mm_or_si128(_mm_unpacklo_epi16(_mm_setzero_si128(), vsign3), |
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_mm_or_si128(_mm_and_si128(vxmask6, vnorm6), _mm_andnot_si128(vxmask6, vdenorm6))); |
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const __m128i vxmask7 = _mm_unpackhi_epi16(vmask3, vmask3); |
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const __m128i vf7 = _mm_or_si128(_mm_unpackhi_epi16(_mm_setzero_si128(), vsign3), |
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_mm_or_si128(_mm_and_si128(vxmask7, vnorm7), _mm_andnot_si128(vxmask7, vdenorm7))); |
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_mm_storeu_ps(output, _mm_castsi128_ps(vf0)); |
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_mm_storeu_ps(output + 4, _mm_castsi128_ps(vf1)); |
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_mm_storeu_ps(output + 8, _mm_castsi128_ps(vf2)); |
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_mm_storeu_ps(output + 12, _mm_castsi128_ps(vf3)); |
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_mm_storeu_ps(output + 16, _mm_castsi128_ps(vf4)); |
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_mm_storeu_ps(output + 20, _mm_castsi128_ps(vf5)); |
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_mm_storeu_ps(output + 24, _mm_castsi128_ps(vf6)); |
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_mm_storeu_ps(output + 28, _mm_castsi128_ps(vf7)); |
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output += 32; |
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} |
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for (; batch >= 8 * sizeof(uint16_t); batch -= 8 * sizeof(uint16_t)) { |
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const __m128i vh = _mm_loadu_si128((const __m128i*) i); |
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i += 8; |
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const __m128i vsign = _mm_and_si128(vh, vsign_mask); |
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const __m128i vnonsign = _mm_xor_si128(vh, vsign); |
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const __m128i vprenorm_lo = _mm_slli_epi16(vnonsign, 13); |
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const __m128i vprenorm_hi = _mm_add_epi16(_mm_srli_epi16(vnonsign, 3), vexp_offset); |
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const __m128i vnorm_lo = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vprenorm_lo, vprenorm_hi)), vexp_scale)); |
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const __m128i vnorm_hi = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vprenorm_lo, vprenorm_hi)), vexp_scale)); |
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const __m128i vdenorm_lo = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vnonsign, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm_hi = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vnonsign, vmagic_mask)), vmagic_bias)); |
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const __m128i vmask = _mm_cmpgt_epi16(vnonsign, vdenorm_cutoff); |
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const __m128i vxmask_lo = _mm_unpacklo_epi16(vmask, vmask); |
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const __m128i vf_lo = _mm_or_si128(_mm_unpacklo_epi16(_mm_setzero_si128(), vsign), |
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_mm_or_si128(_mm_and_si128(vxmask_lo, vnorm_lo), _mm_andnot_si128(vxmask_lo, vdenorm_lo))); |
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const __m128i vxmask_hi = _mm_unpackhi_epi16(vmask, vmask); |
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const __m128i vf_hi = _mm_or_si128(_mm_unpackhi_epi16(_mm_setzero_si128(), vsign), |
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_mm_or_si128(_mm_and_si128(vxmask_hi, vnorm_hi), _mm_andnot_si128(vxmask_hi, vdenorm_hi))); |
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_mm_storeu_ps(output, _mm_castsi128_ps(vf_lo)); |
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_mm_storeu_ps(output + 4, _mm_castsi128_ps(vf_hi)); |
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output += 8; |
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} |
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if XNN_UNPREDICTABLE(batch != 0) { |
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const __m128i vh = _mm_loadu_si128((const __m128i*) i); |
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const __m128i vsign = _mm_and_si128(vh, vsign_mask); |
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const __m128i vnonsign = _mm_xor_si128(vh, vsign); |
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const __m128i vprenorm_lo = _mm_slli_epi16(vnonsign, 13); |
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const __m128i vprenorm_hi = _mm_add_epi16(_mm_srli_epi16(vnonsign, 3), vexp_offset); |
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const __m128i vnorm_lo = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vprenorm_lo, vprenorm_hi)), vexp_scale)); |
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const __m128i vnorm_hi = _mm_castps_si128(_mm_mul_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vprenorm_lo, vprenorm_hi)), vexp_scale)); |
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const __m128i vdenorm_lo = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpacklo_epi16(vnonsign, vmagic_mask)), vmagic_bias)); |
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const __m128i vdenorm_hi = _mm_castps_si128(_mm_sub_ps(_mm_castsi128_ps(_mm_unpackhi_epi16(vnonsign, vmagic_mask)), vmagic_bias)); |
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const __m128i vmask = _mm_cmpgt_epi16(vnonsign, vdenorm_cutoff); |
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const __m128i vxmask_lo = _mm_unpacklo_epi16(vmask, vmask); |
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__m128i vf = _mm_or_si128(_mm_unpacklo_epi16(_mm_setzero_si128(), vsign), |
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_mm_or_si128(_mm_and_si128(vxmask_lo, vnorm_lo), _mm_andnot_si128(vxmask_lo, vdenorm_lo))); |
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if (batch & (4 * sizeof(uint16_t))) { |
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_mm_storeu_ps(output, _mm_castsi128_ps(vf)); |
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output += 4; |
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const __m128i vxmask_hi = _mm_unpackhi_epi16(vmask, vmask); |
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vf = _mm_or_si128(_mm_unpackhi_epi16(_mm_setzero_si128(), vsign), |
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_mm_or_si128(_mm_and_si128(vxmask_hi, vnorm_hi), _mm_andnot_si128(vxmask_hi, vdenorm_hi))); |
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} |
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if (batch & (2 * sizeof(uint16_t))) { |
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_mm_storel_pi((__m64*) output, _mm_castsi128_ps(vf)); |
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output += 2; |
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vf = _mm_castps_si128(_mm_movehl_ps(_mm_castsi128_ps(vf), _mm_castsi128_ps(vf))); |
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} |
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if (batch & (1 * sizeof(uint16_t))) { |
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_mm_store_ss(output, _mm_castsi128_ps(vf)); |
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} |
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} |
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} |
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