| // Auto-generated file. Do not edit! |
| // Template: src/f32-vsigmoid/avx512f-rr2-lut32-p2-perm2-scalef.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2020 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <immintrin.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/intrinsics-polyfill.h> |
| #include <xnnpack/vunary.h> |
| |
| |
| void xnn_f32_vsigmoid_ukernel__avx512f_rr2_lut32_p2_perm2_scalef_div_x64( |
| size_t n, |
| const float* x, |
| float* y, |
| const union xnn_f32_sigmoid_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(n % sizeof(float) == 0); |
| |
| const __m512i vsign_mask = _mm512_set1_epi32((int) params->avx512_rr2_lut32_p2.sign_mask); |
| const __m512 vmagic_bias = _mm512_set1_ps(params->avx512_rr2_lut32_p2.magic_bias); |
| const __m512 vlog2e = _mm512_set1_ps(params->avx512_rr2_lut32_p2.log2e); |
| const __m512 vtable_lo = _mm512_load_ps(params->avx512_rr2_lut32_p2.table_lo); |
| const __m512 vtable_hi = _mm512_load_ps(params->avx512_rr2_lut32_p2.table_hi); |
| const __m512 vminus_ln2_hi = _mm512_set1_ps(params->avx512_rr2_lut32_p2.minus_ln2_hi); |
| const __m512 vminus_ln2_lo = _mm512_set1_ps(params->avx512_rr2_lut32_p2.minus_ln2_lo); |
| const __m512 vc2 = _mm512_set1_ps(params->avx512_rr2_lut32_p2.c2); |
| const __m512 vc1 = _mm512_set1_ps(params->avx512_rr2_lut32_p2.c1); |
| const __m512 vone = _mm512_set1_ps(params->avx512_rr2_lut32_p2.one); |
| |
| for (; n >= 64 * sizeof(float); n -= 64 * sizeof(float)) { |
| const __m512 vx0 = _mm512_loadu_ps(x); |
| const __m512 vx1 = _mm512_loadu_ps(x + 16); |
| const __m512 vx2 = _mm512_loadu_ps(x + 32); |
| const __m512 vx3 = _mm512_loadu_ps(x + 48); |
| x += 64; |
| |
| const __m512 vz0 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx0), vsign_mask)); |
| const __m512 vz1 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx1), vsign_mask)); |
| const __m512 vz2 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx2), vsign_mask)); |
| const __m512 vz3 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx3), vsign_mask)); |
| |
| __m512 vn0 = _mm512_fmadd_ps(vz0, vlog2e, vmagic_bias); |
| __m512 vn1 = _mm512_fmadd_ps(vz1, vlog2e, vmagic_bias); |
| __m512 vn2 = _mm512_fmadd_ps(vz2, vlog2e, vmagic_bias); |
| __m512 vn3 = _mm512_fmadd_ps(vz3, vlog2e, vmagic_bias); |
| |
| const __m512 vl0 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn0), vtable_hi); |
| const __m512 vl1 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn1), vtable_hi); |
| const __m512 vl2 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn2), vtable_hi); |
| const __m512 vl3 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn3), vtable_hi); |
| |
| vn0 = _mm512_sub_ps(vn0, vmagic_bias); |
| vn1 = _mm512_sub_ps(vn1, vmagic_bias); |
| vn2 = _mm512_sub_ps(vn2, vmagic_bias); |
| vn3 = _mm512_sub_ps(vn3, vmagic_bias); |
| |
| __m512 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2_hi, vz0); |
| __m512 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2_hi, vz1); |
| __m512 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2_hi, vz2); |
| __m512 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2_hi, vz3); |
| |
| vt0 = _mm512_fmadd_ps(vn0, vminus_ln2_lo, vt0); |
| vt1 = _mm512_fmadd_ps(vn1, vminus_ln2_lo, vt1); |
| vt2 = _mm512_fmadd_ps(vn2, vminus_ln2_lo, vt2); |
| vt3 = _mm512_fmadd_ps(vn3, vminus_ln2_lo, vt3); |
| |
| __m512 vp0 = _mm512_fmadd_ps(vt0, vc2, vc1); |
| __m512 vp1 = _mm512_fmadd_ps(vt1, vc2, vc1); |
| __m512 vp2 = _mm512_fmadd_ps(vt2, vc2, vc1); |
| __m512 vp3 = _mm512_fmadd_ps(vt3, vc2, vc1); |
| |
| vt0 = _mm512_mul_ps(vt0, vl0); |
| vt1 = _mm512_mul_ps(vt1, vl1); |
| vt2 = _mm512_mul_ps(vt2, vl2); |
| vt3 = _mm512_mul_ps(vt3, vl3); |
| |
| vp0 = _mm512_fmadd_ps(vt0, vp0, vl0); |
| vp1 = _mm512_fmadd_ps(vt1, vp1, vl1); |
| vp2 = _mm512_fmadd_ps(vt2, vp2, vl2); |
| vp3 = _mm512_fmadd_ps(vt3, vp3, vl3); |
| |
| const __m512 ve0 = _mm512_scalef_ps(vp0, vn0); |
| const __m512 ve1 = _mm512_scalef_ps(vp1, vn1); |
| const __m512 ve2 = _mm512_scalef_ps(vp2, vn2); |
| const __m512 ve3 = _mm512_scalef_ps(vp3, vn3); |
| |
| const __m512 vd0 = _mm512_add_ps(ve0, vone); |
| const __m512 vd1 = _mm512_add_ps(ve1, vone); |
| const __m512 vd2 = _mm512_add_ps(ve2, vone); |
| const __m512 vd3 = _mm512_add_ps(ve3, vone); |
| |
| __m512 vf0 = _mm512_div_ps(ve0, vd0); |
| __m512 vf1 = _mm512_div_ps(ve1, vd1); |
| __m512 vf2 = _mm512_div_ps(ve2, vd2); |
| __m512 vf3 = _mm512_div_ps(ve3, vd3); |
| |
| vf0 = _mm512_mask_sub_ps(vf0, _mm512_testn_epi32_mask(_mm512_castps_si512(vx0), vsign_mask), vone, vf0); |
| vf1 = _mm512_mask_sub_ps(vf1, _mm512_testn_epi32_mask(_mm512_castps_si512(vx1), vsign_mask), vone, vf1); |
| vf2 = _mm512_mask_sub_ps(vf2, _mm512_testn_epi32_mask(_mm512_castps_si512(vx2), vsign_mask), vone, vf2); |
| vf3 = _mm512_mask_sub_ps(vf3, _mm512_testn_epi32_mask(_mm512_castps_si512(vx3), vsign_mask), vone, vf3); |
| |
| _mm512_storeu_ps(y, vf0); |
| _mm512_storeu_ps(y + 16, vf1); |
| _mm512_storeu_ps(y + 32, vf2); |
| _mm512_storeu_ps(y + 48, vf3); |
| y += 64; |
| } |
| for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) { |
| const __m512 vx = _mm512_loadu_ps(x); |
| x += 16; |
| |
| const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask)); |
| |
| __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias); |
| const __m512 vl = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn), vtable_hi); |
| vn = _mm512_sub_ps(vn, vmagic_bias); |
| |
| __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2_hi, vz); |
| vt = _mm512_fmadd_ps(vn, vminus_ln2_lo, vt); |
| |
| __m512 vp = _mm512_fmadd_ps(vt, vc2, vc1); |
| vt = _mm512_mul_ps(vt, vl); |
| vp = _mm512_fmadd_ps(vt, vp, vl); |
| |
| const __m512 ve = _mm512_scalef_ps(vp, vn); |
| const __m512 vd = _mm512_add_ps(ve, vone); |
| |
| __m512 vf = _mm512_div_ps(ve, vd); |
| |
| vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf); |
| |
| _mm512_storeu_ps(y, vf); |
| y += 16; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| assert(n >= 1 * sizeof(float)); |
| assert(n <= 15 * sizeof(float)); |
| |
| // Prepare mask for valid 32-bit elements (depends on n). |
| n >>= 2 /* log2(sizeof(float)) */; |
| const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1))); |
| |
| const __m512 vx = _mm512_maskz_loadu_ps(vmask, x); |
| const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask)); |
| |
| __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias); |
| const __m512 vl = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn), vtable_hi); |
| vn = _mm512_sub_ps(vn, vmagic_bias); |
| |
| __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2_hi, vz); |
| vt = _mm512_fmadd_ps(vn, vminus_ln2_lo, vt); |
| |
| __m512 vp = _mm512_fmadd_ps(vt, vc2, vc1); |
| vt = _mm512_mul_ps(vt, vl); |
| vp = _mm512_fmadd_ps(vt, vp, vl); |
| |
| const __m512 ve = _mm512_scalef_ps(vp, vn); |
| const __m512 vd = _mm512_add_ps(ve, vone); |
| |
| __m512 vf = _mm512_div_ps(ve, vd); |
| |
| vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf); |
| |
| _mm512_mask_storeu_ps(y, vmask, vf); |
| } |
| } |