text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-gemm/c2-neon-mull-padal-dup.c.in
  //   Generator: tools/xngen
  //
  // Copyright 2021 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/gemm.h>
  #include <xnnpack/math.h>
  
  
  void xnn_qs8_gemm_minmax_ukernel_3x8c2__neon_mull_padal_dup(
      size_t mr,
      size_t nc,
      size_t kc,
      const int8_t* restrict a,
      size_t a_stride,
      const void* restrict w,
      int8_t* restrict c,
      size_t cm_stride,
      size_t cn_stride,
      const union xnn_qs8_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
  {
    assert(mr != 0);
    assert(mr <= 3);
    assert(nc != 0);
    assert(kc != 0);
    assert(kc % sizeof(int8_t) == 0);
    assert(a != NULL);
    assert(w != NULL);
    assert(c != NULL);
  
    kc = round_up_po2(kc, 2);
    const int8_t* a0 = a;
    int8_t* c0 = c;
    const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
    int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
    if XNN_UNPREDICTABLE(mr < 2) {
      a1 = a0;
      c1 = c0;
    }
    const int8_t* a2 = (const int8_t*) ((uintptr_t) a1 + a_stride);
    int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
    if XNN_UNPREDICTABLE(mr <= 2) {
      a2 = a1;
      c2 = c1;
    }
  
    do {
      int32x4_t vacc0x0123 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
      int32x4_t vacc0x4567 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
      int32x4_t vacc1x0123 = vacc0x0123;
      int32x4_t vacc1x4567 = vacc0x4567;
      int32x4_t vacc2x0123 = vacc0x0123;
      int32x4_t vacc2x4567 = vacc0x4567;
  
      size_t k = kc;
  
  
      while (k >= 8 * sizeof(int8_t)) {
        const int8x8_t va0 = vld1_s8(a0); a0 += 8;
        const int8x8_t va1 = vld1_s8(a1); a1 += 8;
        const int8x8_t va2 = vld1_s8(a2); a2 += 8;
  
        const int8x8_t vb0123c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb4567c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb0123c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb4567c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb0123c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb4567c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb0123c3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb4567c3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
  
        const int16x8_t vprod0x0123c0 = vmull_s8(vb0123c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0)));
        const int16x8_t vprod0x0123c1 = vmull_s8(vb0123c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1)));
        const int16x8_t vprod0x0123c2 = vmull_s8(vb0123c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2)));
        const int16x8_t vprod0x0123c3 = vmull_s8(vb0123c3, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 3)));
        vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c0);
        vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c1);
        vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c2);
        vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c3);
        const int16x8_t vprod0x4567c0 = vmull_s8(vb4567c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0)));
        const int16x8_t vprod0x4567c1 = vmull_s8(vb4567c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1)));
        const int16x8_t vprod0x4567c2 = vmull_s8(vb4567c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2)));
        const int16x8_t vprod0x4567c3 = vmull_s8(vb4567c3, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 3)));
        vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c0);
        vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c1);
        vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c2);
        vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c3);
        const int16x8_t vprod1x0123c0 = vmull_s8(vb0123c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0)));
        const int16x8_t vprod1x0123c1 = vmull_s8(vb0123c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1)));
        const int16x8_t vprod1x0123c2 = vmull_s8(vb0123c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2)));
        const int16x8_t vprod1x0123c3 = vmull_s8(vb0123c3, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 3)));
        vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c0);
        vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c1);
        vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c2);
        vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c3);
        const int16x8_t vprod1x4567c0 = vmull_s8(vb4567c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0)));
        const int16x8_t vprod1x4567c1 = vmull_s8(vb4567c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1)));
        const int16x8_t vprod1x4567c2 = vmull_s8(vb4567c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2)));
        const int16x8_t vprod1x4567c3 = vmull_s8(vb4567c3, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 3)));
        vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c0);
        vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c1);
        vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c2);
        vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c3);
        const int16x8_t vprod2x0123c0 = vmull_s8(vb0123c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 0)));
        const int16x8_t vprod2x0123c1 = vmull_s8(vb0123c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 1)));
        const int16x8_t vprod2x0123c2 = vmull_s8(vb0123c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 2)));
        const int16x8_t vprod2x0123c3 = vmull_s8(vb0123c3, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 3)));
        vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c0);
        vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c1);
        vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c2);
        vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c3);
        const int16x8_t vprod2x4567c0 = vmull_s8(vb4567c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 0)));
        const int16x8_t vprod2x4567c1 = vmull_s8(vb4567c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 1)));
        const int16x8_t vprod2x4567c2 = vmull_s8(vb4567c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 2)));
        const int16x8_t vprod2x4567c3 = vmull_s8(vb4567c3, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 3)));
        vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c0);
        vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c1);
        vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c2);
        vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c3);
  
        k -= 8 * sizeof(int8_t);
      }
  
      if XNN_UNLIKELY(k != 0) {
        const int8x8_t va0 = vld1_s8(a0); a0 = (const int8_t*) ((uintptr_t) a0 + k);
        const int8x8_t va1 = vld1_s8(a1); a1 = (const int8_t*) ((uintptr_t) a1 + k);
        const int8x8_t va2 = vld1_s8(a2); a2 = (const int8_t*) ((uintptr_t) a2 + k);
  
        const int8x8_t vb0123c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
        const int8x8_t vb4567c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
  
        const int16x8_t vprod0x0123c0 = vmull_s8(vb0123c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0)));
        vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c0);
        const int16x8_t vprod0x4567c0 = vmull_s8(vb4567c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0)));
        vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c0);
        const int16x8_t vprod1x0123c0 = vmull_s8(vb0123c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0)));
        vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c0);
        const int16x8_t vprod1x4567c0 = vmull_s8(vb4567c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0)));
        vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c0);
        const int16x8_t vprod2x0123c0 = vmull_s8(vb0123c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 0)));
        vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c0);
        const int16x8_t vprod2x4567c0 = vmull_s8(vb4567c0, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 0)));
        vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c0);
  
        if (k > 2 * sizeof(int8_t)) {
          const int8x8_t vb0123c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
          const int8x8_t vb4567c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
  
          const int16x8_t vprod0x0123c1 = vmull_s8(vb0123c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1)));
          vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c1);
          const int16x8_t vprod0x4567c1 = vmull_s8(vb4567c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1)));
          vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c1);
          const int16x8_t vprod1x0123c1 = vmull_s8(vb0123c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1)));
          vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c1);
          const int16x8_t vprod1x4567c1 = vmull_s8(vb4567c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1)));
          vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c1);
          const int16x8_t vprod2x0123c1 = vmull_s8(vb0123c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 1)));
          vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c1);
          const int16x8_t vprod2x4567c1 = vmull_s8(vb4567c1, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 1)));
          vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c1);
  
          if (k > 4 * sizeof(int8_t)) {
            const int8x8_t vb0123c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
            const int8x8_t vb4567c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
  
            const int16x8_t vprod0x0123c2 = vmull_s8(vb0123c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2)));
            vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c2);
            const int16x8_t vprod0x4567c2 = vmull_s8(vb4567c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2)));
            vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c2);
            const int16x8_t vprod1x0123c2 = vmull_s8(vb0123c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2)));
            vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c2);
            const int16x8_t vprod1x4567c2 = vmull_s8(vb4567c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2)));
            vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c2);
            const int16x8_t vprod2x0123c2 = vmull_s8(vb0123c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 2)));
            vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c2);
            const int16x8_t vprod2x4567c2 = vmull_s8(vb4567c2, vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 2)));
            vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c2);
          }
        }
      }
      const int32x4_t vmultiplier = vld1q_dup_s32(&params->neon.multiplier);
      vacc0x0123 = vqrdmulhq_s32(vacc0x0123, vmultiplier);
      vacc0x4567 = vqrdmulhq_s32(vacc0x4567, vmultiplier);
      vacc1x0123 = vqrdmulhq_s32(vacc1x0123, vmultiplier);
      vacc1x4567 = vqrdmulhq_s32(vacc1x4567, vmultiplier);
      vacc2x0123 = vqrdmulhq_s32(vacc2x0123, vmultiplier);
      vacc2x4567 = vqrdmulhq_s32(vacc2x4567, vmultiplier);
  
      const int32x4_t vright_shift = vld1q_dup_s32(&params->neon.right_shift);
      const int32x4_t vzero_shift_mask = vreinterpretq_s32_u32(vceqq_s32(vright_shift, vmovq_n_s32(0)));
      vacc0x0123 = vsraq_n_s32(vacc0x0123, vbicq_s32(vacc0x0123, vzero_shift_mask), 31);
      vacc0x4567 = vsraq_n_s32(vacc0x4567, vbicq_s32(vacc0x4567, vzero_shift_mask), 31);
      vacc1x0123 = vsraq_n_s32(vacc1x0123, vbicq_s32(vacc1x0123, vzero_shift_mask), 31);
      vacc1x4567 = vsraq_n_s32(vacc1x4567, vbicq_s32(vacc1x4567, vzero_shift_mask), 31);
      vacc2x0123 = vsraq_n_s32(vacc2x0123, vbicq_s32(vacc2x0123, vzero_shift_mask), 31);
      vacc2x4567 = vsraq_n_s32(vacc2x4567, vbicq_s32(vacc2x4567, vzero_shift_mask), 31);
  
      vacc0x0123 = vrshlq_s32(vacc0x0123, vright_shift);
      vacc0x4567 = vrshlq_s32(vacc0x4567, vright_shift);
      vacc1x0123 = vrshlq_s32(vacc1x0123, vright_shift);
      vacc1x4567 = vrshlq_s32(vacc1x4567, vright_shift);
      vacc2x0123 = vrshlq_s32(vacc2x0123, vright_shift);
      vacc2x4567 = vrshlq_s32(vacc2x4567, vright_shift);
  
      const int16x8_t voutput_zero_point = vld1q_dup_s16(&params->neon.output_zero_point);
  #if XNN_ARCH_ARM64
      const int16x8_t vacc0x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567), voutput_zero_point);
      const int16x8_t vacc1x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567), voutput_zero_point);
      const int16x8_t vacc2x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567), voutput_zero_point);
  
      int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
      int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
  #else
      const int16x8_t vacc0x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567)), voutput_zero_point);
      const int16x8_t vacc1x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567)), voutput_zero_point);
      const int16x8_t vacc2x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567)), voutput_zero_point);
  
      int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc1x01234567));
      int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
  #endif
      const int8x16_t voutput_min = vld1q_dup_s8(&params->neon.output_min);
      const int8x16_t voutput_max = vld1q_dup_s8(&params->neon.output_max);
  
      vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
      vout2x01234567 = vmax_s8(vout2x01234567, vget_low_s8(voutput_min));
  
      vout0x01234567_1x01234567 = vminq_s8(vout0x01234567_1x01234567, voutput_max);
      vout2x01234567 = vmin_s8(vout2x01234567, vget_low_s8(voutput_max));
  
      if (nc >= 8) {
        vst1_s8(c0 + 0, vget_low_s8(vout0x01234567_1x01234567));
        vst1_s8(c1 + 0, vget_high_s8(vout0x01234567_1x01234567));
        vst1_s8(c2 + 0, vout2x01234567);
  
        c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
        c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
        c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
  
        a0 = (const int8_t*) ((uintptr_t) a0 - kc);
        a1 = (const int8_t*) ((uintptr_t) a1 - kc);
        a2 = (const int8_t*) ((uintptr_t) a2 - kc);
  
        nc -= 8;
      } else {
        if (nc & 4) {
          vst1q_lane_u32(__builtin_assume_aligned(c0, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
          vst1q_lane_u32(__builtin_assume_aligned(c1, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
          vst1_lane_u32(__builtin_assume_aligned(c2, 1), vreinterpret_u32_s8(vout2x01234567), 0); c2 += 4;
          vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
          vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 4);
        }
        if (nc & 2) {
          vst1q_lane_u16(__builtin_assume_aligned(c0, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
          vst1q_lane_u16(__builtin_assume_aligned(c1, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
          vst1_lane_u16(__builtin_assume_aligned(c2, 1), vreinterpret_u16_s8(vout2x01234567), 0); c2 += 2;
          vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
          vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 2);
        }
        if (nc & 1) {
          vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
          vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
          vst1_lane_s8(c2, vout2x01234567, 0);
        }
  
        nc = 0;
      }
    } while (nc != 0);
  }
  