text: // Auto-generated file. Do not edit!
  //   Template: src/f32-raddstoreexpminusmax/neon-lut64-p2.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 <arm_neon.h>
  
  #include <xnnpack/common.h>
  #include <xnnpack/raddstoreexpminusmax.h>
  
  
  extern XNN_INTERNAL const float xnn_table_exp2_k_over_64[64];
  
  void xnn_f32_raddstoreexpminusmax_ukernel__neonfma_rr1_lut64_p2_x12_acc3(
      size_t elements,
      const float* input,
      const float* max,
      float* output,
      float* sum,
      const union xnn_f32_expminus_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
  {
    assert(elements % sizeof(float) == 0);
  
    const float32x4_t vi_max = vld1q_dup_f32(max);
    const float32x4_t vlog2e = vld1q_dup_f32(&params->neonfma_rr1_lut64_p2.log2e);
    const float32x4_t vmagic_bias = vld1q_dup_f32(&params->neonfma_rr1_lut64_p2.magic_bias);
    const int32x4_t vindex_mask = vmovq_n_s32(INT32_C(0x3F));
    const float32x4_t vminus_ln2 = vld1q_dup_f32(&params->neonfma_rr1_lut64_p2.minus_ln2);
    const float32x4_t vc2 = vld1q_dup_f32(&params->neonfma_rr1_lut64_p2.c2);
    const float32x4_t vdenorm_cutoff = vld1q_dup_f32(&params->neonfma_rr1_lut64_p2.denorm_cutoff);
  
    float32x4_t vacc0 = vmovq_n_f32(0.0f);
    float32x4_t vacc1 = vmovq_n_f32(0.0f);
    float32x4_t vacc2 = vmovq_n_f32(0.0f);
    for (; elements >= 12 * sizeof(float); elements -= 12 * sizeof(float)) {
      const float32x4_t vi0123 = vld1q_f32(input); input += 4;
      const float32x4_t vi4567 = vld1q_f32(input); input += 4;
      const float32x4_t vi89AB = vld1q_f32(input); input += 4;
  
      const float32x4_t vx0123 = vsubq_f32(vi0123, vi_max);
      const float32x4_t vx4567 = vsubq_f32(vi4567, vi_max);
      const float32x4_t vx89AB = vsubq_f32(vi89AB, vi_max);
  
      float32x4_t vn0123 = vfmaq_f32(vmagic_bias, vx0123, vlog2e);
      float32x4_t vn4567 = vfmaq_f32(vmagic_bias, vx4567, vlog2e);
      float32x4_t vn89AB = vfmaq_f32(vmagic_bias, vx89AB, vlog2e);
  
      const int32x4_t ve0123 = vshlq_n_s32(vbicq_s32(vreinterpretq_s32_f32(vn0123), vmovq_n_s32(INT32_C(0x3F))), 17);
      const int32x4_t ve4567 = vshlq_n_s32(vbicq_s32(vreinterpretq_s32_f32(vn4567), vmovq_n_s32(INT32_C(0x3F))), 17);
      const int32x4_t ve89AB = vshlq_n_s32(vbicq_s32(vreinterpretq_s32_f32(vn89AB), vmovq_n_s32(INT32_C(0x3F))), 17);
  
      const uint64x2_t vidx0123 = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn0123), vindex_mask));
      const uint64_t vidx01 = vgetq_lane_u64(vidx0123, 0);
      const uint64_t vidx23 = vgetq_lane_u64(vidx0123, 1);
      const uint64x2_t vidx4567 = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn4567), vindex_mask));
      const uint64_t vidx45 = vgetq_lane_u64(vidx4567, 0);
      const uint64_t vidx67 = vgetq_lane_u64(vidx4567, 1);
      const uint64x2_t vidx89AB = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn89AB), vindex_mask));
      const uint64_t vidx89 = vgetq_lane_u64(vidx89AB, 0);
      const uint64_t vidxAB = vgetq_lane_u64(vidx89AB, 1);
  
      float32x2_t vl01 = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx01]);
      float32x2_t vl23 = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx23]);
      float32x2_t vl45 = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx45]);
      float32x2_t vl67 = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx67]);
      float32x2_t vl89 = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx89]);
      float32x2_t vlAB = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidxAB]);
  
      vl01 = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx01 >> 32)], vl01, 1);
      vl23 = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx23 >> 32)], vl23, 1);
      const float32x4_t vl0123 = vcombine_f32(vl01, vl23);
      vl45 = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx45 >> 32)], vl45, 1);
      vl67 = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx67 >> 32)], vl67, 1);
      const float32x4_t vl4567 = vcombine_f32(vl45, vl67);
      vl89 = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx89 >> 32)], vl89, 1);
      vlAB = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidxAB >> 32)], vlAB, 1);
      const float32x4_t vl89AB = vcombine_f32(vl89, vlAB);
  
      const float32x4_t vs0123 = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl0123), ve0123));
      const float32x4_t vs4567 = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl4567), ve4567));
      const float32x4_t vs89AB = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl89AB), ve89AB));
  
      vn0123 = vsubq_f32(vn0123, vmagic_bias);
      vn4567 = vsubq_f32(vn4567, vmagic_bias);
      vn89AB = vsubq_f32(vn89AB, vmagic_bias);
  
      float32x4_t vt0123 = vfmaq_f32(vx0123, vn0123, vminus_ln2);
      float32x4_t vt4567 = vfmaq_f32(vx4567, vn4567, vminus_ln2);
      float32x4_t vt89AB = vfmaq_f32(vx89AB, vn89AB, vminus_ln2);
  
      float32x4_t vp0123 = vmulq_f32(vt0123, vc2);
      float32x4_t vp4567 = vmulq_f32(vt4567, vc2);
      float32x4_t vp89AB = vmulq_f32(vt89AB, vc2);
  
      vp0123 = vfmaq_f32(vt0123, vt0123, vp0123);
      vp4567 = vfmaq_f32(vt4567, vt4567, vp4567);
      vp89AB = vfmaq_f32(vt89AB, vt89AB, vp89AB);
  
      float32x4_t vf0123 = vfmaq_f32(vs0123, vs0123, vp0123);
      float32x4_t vf4567 = vfmaq_f32(vs4567, vs4567, vp4567);
      float32x4_t vf89AB = vfmaq_f32(vs89AB, vs89AB, vp89AB);
  
      vf0123 = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf0123), vcltq_f32(vx0123, vdenorm_cutoff)));
      vf4567 = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf4567), vcltq_f32(vx4567, vdenorm_cutoff)));
      vf89AB = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf89AB), vcltq_f32(vx89AB, vdenorm_cutoff)));
  
      vst1q_f32(output, vf0123); output += 4;
      vst1q_f32(output, vf4567); output += 4;
      vst1q_f32(output, vf89AB); output += 4;
  
      vacc0 = vaddq_f32(vacc0, vf0123);
      vacc1 = vaddq_f32(vacc1, vf4567);
      vacc2 = vaddq_f32(vacc2, vf89AB);
    }
    vacc0 = vaddq_f32(vacc0, vacc1);
    vacc0 = vaddq_f32(vacc0, vacc2);
  
    float32x4_t vacc = vacc0;
    for (; elements >= 4 * sizeof(float); elements -= 4 * sizeof(float)) {
      const float32x4_t vi = vld1q_f32(input); input += 4;
  
      const float32x4_t vx = vsubq_f32(vi, vi_max);
  
      float32x4_t vn = vfmaq_f32(vmagic_bias, vx, vlog2e);
  
      const int32x4_t ve = vshlq_n_s32(vbicq_s32(vreinterpretq_s32_f32(vn), vmovq_n_s32(INT32_C(0x3F))), 17);
  
      const uint64x2_t vidx = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn), vindex_mask));
      const uint64_t vidx_lo = vgetq_lane_u64(vidx, 0);
      const uint64_t vidx_hi = vgetq_lane_u64(vidx, 1);
      float32x2_t vl_lo = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx_lo]);
      float32x2_t vl_hi = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx_hi]);
      vl_lo = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx_lo >> 32)], vl_lo, 1);
      vl_hi = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx_hi >> 32)], vl_hi, 1);
      const float32x4_t vl = vcombine_f32(vl_lo, vl_hi);
      const float32x4_t vs = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl), ve));
  
      vn = vsubq_f32(vn, vmagic_bias);
  
      float32x4_t vt = vfmaq_f32(vx, vn, vminus_ln2);
  
      float32x4_t vp = vmulq_f32(vt, vc2);
      vp = vfmaq_f32(vt, vt, vp);
  
      float32x4_t vf = vfmaq_f32(vs, vs, vp);
  
      vf = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf), vcltq_f32(vx, vdenorm_cutoff)));
  
      vst1q_f32(output, vf); output += 4;
  
      vacc = vaddq_f32(vacc, vf);
    }
  #if XNN_ARCH_ARM64
    float vacc_lo = vaddvq_f32(vacc);
  #else
    float32x2_t vacc_lo = vadd_f32(vget_high_f32(vacc), vget_low_f32(vacc));
  #endif
    if (elements != 0) {
      assert(elements >= 1 * sizeof(float));
      assert(elements <= 3 * sizeof(float));
      const float32x4_t vi = vld1q_f32(input); input += 4;
  
      const float32x4_t vx = vsubq_f32(vi, vi_max);
  
      float32x4_t vn = vfmaq_f32(vmagic_bias, vx, vlog2e);
  
      const int32x4_t ve = vshlq_n_s32(vbicq_s32(vreinterpretq_s32_f32(vn), vmovq_n_s32(INT32_C(0x3F))), 17);
  
      const uint64x2_t vidx = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn), vindex_mask));
      const uint64_t vidx_lo = vgetq_lane_u64(vidx, 0);
      const uint64_t vidx_hi = vgetq_lane_u64(vidx, 1);
      float32x2_t vl_lo = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx_lo]);
      float32x2_t vl_hi = vld1_dup_f32(&xnn_table_exp2_k_over_64[(uint32_t) vidx_hi]);
      vl_lo = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx_lo >> 32)], vl_lo, 1);
      vl_hi = vld1_lane_f32(&xnn_table_exp2_k_over_64[(uint32_t) (vidx_hi >> 32)], vl_hi, 1);
      const float32x4_t vl = vcombine_f32(vl_lo, vl_hi);
      const float32x4_t vs = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl), ve));
  
      vn = vsubq_f32(vn, vmagic_bias);
  
      float32x4_t vt = vfmaq_f32(vx, vn, vminus_ln2);
  
      float32x4_t vp = vmulq_f32(vt, vc2);
      vp = vfmaq_f32(vt, vt, vp);
  
      float32x4_t vf = vfmaq_f32(vs, vs, vp);
  
      vf = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf), vcltq_f32(vx, vdenorm_cutoff)));
  
      float32x2_t vf_lo = vget_low_f32(vf);
      if (elements & (2 * sizeof(float))) {
        vst1_f32(output, vf_lo); output += 2;
  
        #if XNN_ARCH_ARM64
          vacc_lo += vaddv_f32(vf_lo);
        #else
          vacc_lo = vadd_f32(vacc_lo, vf_lo);
        #endif
  
        vf_lo = vget_high_f32(vf);
      }
      if (elements & (1 * sizeof(float))) {
        vst1_lane_f32(output, vf_lo, 0);
  
        #if XNN_ARCH_ARM64
          vacc_lo += vget_lane_f32(vf_lo, 0);
        #else
          vacc_lo = vadd_f32(vacc_lo, vreinterpret_f32_u64(vshl_n_u64(vreinterpret_u64_f32(vf_lo), 32)));
        #endif
      }
    }
  #if XNN_ARCH_ARM64
    *sum = vacc_lo;
  #else
    vst1_lane_f32(sum, vpadd_f32(vacc_lo, vacc_lo), 0);
  #endif
  }
  