src/qs8-gemm/gen/3x8c4-minmax-rndnu-neon-mull-ld1r.c - platform/external/XNNPACK - Gitiles

 // Auto-generated file. Do not edit!
 //   Template: src/qs8-gemm/c4-neon-mull-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_rndnu_ukernel_3x8c4__neon_mull_ld1r(
     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_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
 {
   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, 4 * sizeof(int8_t));
   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 vacc0x01 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void*) ((uintptr_t) w + 2 * sizeof(int32_t));
     int32x4_t vacc0x23 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void*) ((uintptr_t) w + 2 * sizeof(int32_t));
     int32x4_t vacc0x45 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void*) ((uintptr_t) w + 2 * sizeof(int32_t));
     int32x4_t vacc0x67 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void*) ((uintptr_t) w + 2 * sizeof(int32_t));
     int32x4_t vacc1x01 = vacc0x01;
     int32x4_t vacc1x23 = vacc0x23;
     int32x4_t vacc1x45 = vacc0x45;
     int32x4_t vacc1x67 = vacc0x67;
     int32x4_t vacc2x01 = vacc0x01;
     int32x4_t vacc2x23 = vacc0x23;
     int32x4_t vacc2x45 = vacc0x45;
     int32x4_t vacc2x67 = vacc0x67;

     size_t k = kc;


     while (k >= 8 * sizeof(int8_t)) {
       const int32x2_t va00 = vld1_dup_s32((const void*)a0);
       const int32x2_t va01 = vld1_dup_s32((const void*)(a0 + 4)); a0 += 8;
       const int32x2_t va10 = vld1_dup_s32((const void*)a1);
       const int32x2_t va11 = vld1_dup_s32((const void*)(a1 + 4)); a1 += 8;
       const int32x2_t va20 = vld1_dup_s32((const void*)a2);
       const int32x2_t va21 = vld1_dup_s32((const void*)(a2 + 4)); a2 += 8;

       const int8x8_t vb01c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb23c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb45c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb67c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb01c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb23c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb45c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb67c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));

       const int8x8_t va0c0 = vreinterpret_s8_s32(va00);
       const int8x8_t va1c0 = vreinterpret_s8_s32(va10);
       const int8x8_t va2c0 = vreinterpret_s8_s32(va20);

       const int16x8_t vprod0x01c0 = vmull_s8(vb01c0, va0c0);
       const int16x8_t vprod1x01c0 = vmull_s8(vb01c0, va1c0);
       const int16x8_t vprod2x01c0 = vmull_s8(vb01c0, va2c0);
       vacc0x01 = vpadalq_s16(vacc0x01, vprod0x01c0);
       vacc1x01 = vpadalq_s16(vacc1x01, vprod1x01c0);
       vacc2x01 = vpadalq_s16(vacc2x01, vprod2x01c0);
       const int16x8_t vprod0x23c0 = vmull_s8(vb23c0, va0c0);
       const int16x8_t vprod1x23c0 = vmull_s8(vb23c0, va1c0);
       const int16x8_t vprod2x23c0 = vmull_s8(vb23c0, va2c0);
       vacc0x23 = vpadalq_s16(vacc0x23, vprod0x23c0);
       vacc1x23 = vpadalq_s16(vacc1x23, vprod1x23c0);
       vacc2x23 = vpadalq_s16(vacc2x23, vprod2x23c0);
       const int16x8_t vprod0x45c0 = vmull_s8(vb45c0, va0c0);
       const int16x8_t vprod1x45c0 = vmull_s8(vb45c0, va1c0);
       const int16x8_t vprod2x45c0 = vmull_s8(vb45c0, va2c0);
       vacc0x45 = vpadalq_s16(vacc0x45, vprod0x45c0);
       vacc1x45 = vpadalq_s16(vacc1x45, vprod1x45c0);
       vacc2x45 = vpadalq_s16(vacc2x45, vprod2x45c0);
       const int16x8_t vprod0x67c0 = vmull_s8(vb67c0, va0c0);
       const int16x8_t vprod1x67c0 = vmull_s8(vb67c0, va1c0);
       const int16x8_t vprod2x67c0 = vmull_s8(vb67c0, va2c0);
       vacc0x67 = vpadalq_s16(vacc0x67, vprod0x67c0);
       vacc1x67 = vpadalq_s16(vacc1x67, vprod1x67c0);
       vacc2x67 = vpadalq_s16(vacc2x67, vprod2x67c0);
       const int8x8_t va0c1 = vreinterpret_s8_s32(va01);
       const int8x8_t va1c1 = vreinterpret_s8_s32(va11);
       const int8x8_t va2c1 = vreinterpret_s8_s32(va21);

       const int16x8_t vprod0x01c1 = vmull_s8(vb01c1, va0c1);
       const int16x8_t vprod1x01c1 = vmull_s8(vb01c1, va1c1);
       const int16x8_t vprod2x01c1 = vmull_s8(vb01c1, va2c1);
       vacc0x01 = vpadalq_s16(vacc0x01, vprod0x01c1);
       vacc1x01 = vpadalq_s16(vacc1x01, vprod1x01c1);
       vacc2x01 = vpadalq_s16(vacc2x01, vprod2x01c1);
       const int16x8_t vprod0x23c1 = vmull_s8(vb23c1, va0c1);
       const int16x8_t vprod1x23c1 = vmull_s8(vb23c1, va1c1);
       const int16x8_t vprod2x23c1 = vmull_s8(vb23c1, va2c1);
       vacc0x23 = vpadalq_s16(vacc0x23, vprod0x23c1);
       vacc1x23 = vpadalq_s16(vacc1x23, vprod1x23c1);
       vacc2x23 = vpadalq_s16(vacc2x23, vprod2x23c1);
       const int16x8_t vprod0x45c1 = vmull_s8(vb45c1, va0c1);
       const int16x8_t vprod1x45c1 = vmull_s8(vb45c1, va1c1);
       const int16x8_t vprod2x45c1 = vmull_s8(vb45c1, va2c1);
       vacc0x45 = vpadalq_s16(vacc0x45, vprod0x45c1);
       vacc1x45 = vpadalq_s16(vacc1x45, vprod1x45c1);
       vacc2x45 = vpadalq_s16(vacc2x45, vprod2x45c1);
       const int16x8_t vprod0x67c1 = vmull_s8(vb67c1, va0c1);
       const int16x8_t vprod1x67c1 = vmull_s8(vb67c1, va1c1);
       const int16x8_t vprod2x67c1 = vmull_s8(vb67c1, va2c1);
       vacc0x67 = vpadalq_s16(vacc0x67, vprod0x67c1);
       vacc1x67 = vpadalq_s16(vacc1x67, vprod1x67c1);
       vacc2x67 = vpadalq_s16(vacc2x67, vprod2x67c1);

       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 vb01c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb23c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb45c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
       const int8x8_t vb67c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));

       const int8x8_t va0c0 = vreinterpret_s8_s32(vdup_lane_s32(vreinterpret_s32_s8(va0), 0));
       const int16x8_t vprod0x01c0 = vmull_s8(vb01c0, va0c0);
       vacc0x01 = vpadalq_s16(vacc0x01, vprod0x01c0);
       const int16x8_t vprod0x23c0 = vmull_s8(vb23c0, va0c0);
       vacc0x23 = vpadalq_s16(vacc0x23, vprod0x23c0);
       const int16x8_t vprod0x45c0 = vmull_s8(vb45c0, va0c0);
       vacc0x45 = vpadalq_s16(vacc0x45, vprod0x45c0);
       const int16x8_t vprod0x67c0 = vmull_s8(vb67c0, va0c0);
       vacc0x67 = vpadalq_s16(vacc0x67, vprod0x67c0);
       const int8x8_t va1c0 = vreinterpret_s8_s32(vdup_lane_s32(vreinterpret_s32_s8(va1), 0));
       const int16x8_t vprod1x01c0 = vmull_s8(vb01c0, va1c0);
       vacc1x01 = vpadalq_s16(vacc1x01, vprod1x01c0);
       const int16x8_t vprod1x23c0 = vmull_s8(vb23c0, va1c0);
       vacc1x23 = vpadalq_s16(vacc1x23, vprod1x23c0);
       const int16x8_t vprod1x45c0 = vmull_s8(vb45c0, va1c0);
       vacc1x45 = vpadalq_s16(vacc1x45, vprod1x45c0);
       const int16x8_t vprod1x67c0 = vmull_s8(vb67c0, va1c0);
       vacc1x67 = vpadalq_s16(vacc1x67, vprod1x67c0);
       const int8x8_t va2c0 = vreinterpret_s8_s32(vdup_lane_s32(vreinterpret_s32_s8(va2), 0));
       const int16x8_t vprod2x01c0 = vmull_s8(vb01c0, va2c0);
       vacc2x01 = vpadalq_s16(vacc2x01, vprod2x01c0);
       const int16x8_t vprod2x23c0 = vmull_s8(vb23c0, va2c0);
       vacc2x23 = vpadalq_s16(vacc2x23, vprod2x23c0);
       const int16x8_t vprod2x45c0 = vmull_s8(vb45c0, va2c0);
       vacc2x45 = vpadalq_s16(vacc2x45, vprod2x45c0);
       const int16x8_t vprod2x67c0 = vmull_s8(vb67c0, va2c0);
       vacc2x67 = vpadalq_s16(vacc2x67, vprod2x67c0);
     }

 #if XNN_ARCH_ARM64
     int32x4_t vacc0x0123 = vpaddq_s32(vacc0x01, vacc0x23);
     int32x4_t vacc0x4567 = vpaddq_s32(vacc0x45, vacc0x67);
     int32x4_t vacc1x0123 = vpaddq_s32(vacc1x01, vacc1x23);
     int32x4_t vacc1x4567 = vpaddq_s32(vacc1x45, vacc1x67);
     int32x4_t vacc2x0123 = vpaddq_s32(vacc2x01, vacc2x23);
     int32x4_t vacc2x4567 = vpaddq_s32(vacc2x45, vacc2x67);
 #else
     const int32x2_t vsum0x01 = vpadd_s32(vget_low_s32(vacc0x01), vget_high_s32(vacc0x01));
     const int32x2_t vsum0x23 = vpadd_s32(vget_low_s32(vacc0x23), vget_high_s32(vacc0x23));
     int32x4_t vacc0x0123 = vcombine_s32(vsum0x01, vsum0x23);
     const int32x2_t vsum0x45 = vpadd_s32(vget_low_s32(vacc0x45), vget_high_s32(vacc0x45));
     const int32x2_t vsum0x67 = vpadd_s32(vget_low_s32(vacc0x67), vget_high_s32(vacc0x67));
     int32x4_t vacc0x4567 = vcombine_s32(vsum0x45, vsum0x67);
     const int32x2_t vsum1x01 = vpadd_s32(vget_low_s32(vacc1x01), vget_high_s32(vacc1x01));
     const int32x2_t vsum1x23 = vpadd_s32(vget_low_s32(vacc1x23), vget_high_s32(vacc1x23));
     int32x4_t vacc1x0123 = vcombine_s32(vsum1x01, vsum1x23);
     const int32x2_t vsum1x45 = vpadd_s32(vget_low_s32(vacc1x45), vget_high_s32(vacc1x45));
     const int32x2_t vsum1x67 = vpadd_s32(vget_low_s32(vacc1x67), vget_high_s32(vacc1x67));
     int32x4_t vacc1x4567 = vcombine_s32(vsum1x45, vsum1x67);
     const int32x2_t vsum2x01 = vpadd_s32(vget_low_s32(vacc2x01), vget_high_s32(vacc2x01));
     const int32x2_t vsum2x23 = vpadd_s32(vget_low_s32(vacc2x23), vget_high_s32(vacc2x23));
     int32x4_t vacc2x0123 = vcombine_s32(vsum2x01, vsum2x23);
     const int32x2_t vsum2x45 = vpadd_s32(vget_low_s32(vacc2x45), vget_high_s32(vacc2x45));
     const int32x2_t vsum2x67 = vpadd_s32(vget_low_s32(vacc2x67), vget_high_s32(vacc2x67));
     int32x4_t vacc2x4567 = vcombine_s32(vsum2x45, vsum2x67);
 #endif

     const int32x4_t vright_pre_shift = vld1q_dup_s32(&params->rndnu_neon.right_pre_shift);
     const int32x4_t vmultiplier = vld1q_dup_s32(&params->rndnu_neon.multiplier);
     const int32x4_t vright_post_shift = vld1q_dup_s32(&params->rndnu_neon.right_post_shift);

     vacc0x0123 = vqshlq_s32(vacc0x0123, vright_pre_shift);
     vacc0x4567 = vqshlq_s32(vacc0x4567, vright_pre_shift);
     vacc1x0123 = vqshlq_s32(vacc1x0123, vright_pre_shift);
     vacc1x4567 = vqshlq_s32(vacc1x4567, vright_pre_shift);
     vacc2x0123 = vqshlq_s32(vacc2x0123, vright_pre_shift);
     vacc2x4567 = vqshlq_s32(vacc2x4567, vright_pre_shift);

     vacc0x0123 = vqdmulhq_s32(vacc0x0123, vmultiplier);
     vacc0x4567 = vqdmulhq_s32(vacc0x4567, vmultiplier);
     vacc1x0123 = vqdmulhq_s32(vacc1x0123, vmultiplier);
     vacc1x4567 = vqdmulhq_s32(vacc1x4567, vmultiplier);
     vacc2x0123 = vqdmulhq_s32(vacc2x0123, vmultiplier);
     vacc2x4567 = vqdmulhq_s32(vacc2x4567, vmultiplier);

     vacc0x0123 = vrshlq_s32(vacc0x0123, vright_post_shift);
     vacc0x4567 = vrshlq_s32(vacc0x4567, vright_post_shift);
     vacc1x0123 = vrshlq_s32(vacc1x0123, vright_post_shift);
     vacc1x4567 = vrshlq_s32(vacc1x4567, vright_post_shift);
     vacc2x0123 = vrshlq_s32(vacc2x0123, vright_post_shift);
     vacc2x4567 = vrshlq_s32(vacc2x4567, vright_post_shift);

     const int16x8_t voutput_zero_point = vld1q_dup_s16(&params->rndnu_neon.output_zero_point);
 #if XNN_ARCH_ARM64
     int16x8_t vacc0x01234567 = vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567);
     int16x8_t vacc1x01234567 = vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567);
     int16x8_t vacc2x01234567 = vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567);

     vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
     vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
     vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);

     int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
     int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
 #else
     int16x8_t vacc0x01234567 = vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567));
     int16x8_t vacc1x01234567 = vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567));
     int16x8_t vacc2x01234567 = vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567));

     vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
     vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
     vacc2x01234567 = vqaddq_s16(vacc2x01234567, 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->rndnu_neon.output_min);
     vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
     vout2x01234567 = vmax_s8(vout2x01234567, vget_low_s8(voutput_min));

     const int8x16_t voutput_max = vld1q_dup_s8(&params->rndnu_neon.output_max);
     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 {
       // Final case where not all of the 8 columns fit in the destination.
       if (nc & 4) {
         vst1q_lane_u32((void*) c0, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
         vst1q_lane_u32((void*) c1, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
         vst1_lane_u32((void*) c2, 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((void*) c0, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
         vst1q_lane_u16((void*) c1, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
         vst1_lane_u16((void*) c2, 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);
 }
	// Auto-generated file. Do not edit!
	// Template: src/qs8-gemm/c4-neon-mull-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_rndnu_ukernel_3x8c4__neon_mull_ld1r(
	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_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
	{
	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, 4 * sizeof(int8_t));
	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 vacc0x01 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void) ((uintptr_t) w + 2 sizeof(int32_t));
	int32x4_t vacc0x23 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void) ((uintptr_t) w + 2 sizeof(int32_t));
	int32x4_t vacc0x45 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void) ((uintptr_t) w + 2 sizeof(int32_t));
	int32x4_t vacc0x67 = vreinterpretq_s32_u64(vmovl_u32(vld1_u32(w))); w = (const void) ((uintptr_t) w + 2 sizeof(int32_t));
	int32x4_t vacc1x01 = vacc0x01;
	int32x4_t vacc1x23 = vacc0x23;
	int32x4_t vacc1x45 = vacc0x45;
	int32x4_t vacc1x67 = vacc0x67;
	int32x4_t vacc2x01 = vacc0x01;
	int32x4_t vacc2x23 = vacc0x23;
	int32x4_t vacc2x45 = vacc0x45;
	int32x4_t vacc2x67 = vacc0x67;

	size_t k = kc;


	while (k >= 8 * sizeof(int8_t)) {
	const int32x2_t va00 = vld1_dup_s32((const void*)a0);
	const int32x2_t va01 = vld1_dup_s32((const void*)(a0 + 4)); a0 += 8;
	const int32x2_t va10 = vld1_dup_s32((const void*)a1);
	const int32x2_t va11 = vld1_dup_s32((const void*)(a1 + 4)); a1 += 8;
	const int32x2_t va20 = vld1_dup_s32((const void*)a2);
	const int32x2_t va21 = vld1_dup_s32((const void*)(a2 + 4)); a2 += 8;

	const int8x8_t vb01c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb23c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb45c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb67c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb01c1 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb23c1 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb45c1 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb67c1 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));

	const int8x8_t va0c0 = vreinterpret_s8_s32(va00);
	const int8x8_t va1c0 = vreinterpret_s8_s32(va10);
	const int8x8_t va2c0 = vreinterpret_s8_s32(va20);

	const int16x8_t vprod0x01c0 = vmull_s8(vb01c0, va0c0);
	const int16x8_t vprod1x01c0 = vmull_s8(vb01c0, va1c0);
	const int16x8_t vprod2x01c0 = vmull_s8(vb01c0, va2c0);
	vacc0x01 = vpadalq_s16(vacc0x01, vprod0x01c0);
	vacc1x01 = vpadalq_s16(vacc1x01, vprod1x01c0);
	vacc2x01 = vpadalq_s16(vacc2x01, vprod2x01c0);
	const int16x8_t vprod0x23c0 = vmull_s8(vb23c0, va0c0);
	const int16x8_t vprod1x23c0 = vmull_s8(vb23c0, va1c0);
	const int16x8_t vprod2x23c0 = vmull_s8(vb23c0, va2c0);
	vacc0x23 = vpadalq_s16(vacc0x23, vprod0x23c0);
	vacc1x23 = vpadalq_s16(vacc1x23, vprod1x23c0);
	vacc2x23 = vpadalq_s16(vacc2x23, vprod2x23c0);
	const int16x8_t vprod0x45c0 = vmull_s8(vb45c0, va0c0);
	const int16x8_t vprod1x45c0 = vmull_s8(vb45c0, va1c0);
	const int16x8_t vprod2x45c0 = vmull_s8(vb45c0, va2c0);
	vacc0x45 = vpadalq_s16(vacc0x45, vprod0x45c0);
	vacc1x45 = vpadalq_s16(vacc1x45, vprod1x45c0);
	vacc2x45 = vpadalq_s16(vacc2x45, vprod2x45c0);
	const int16x8_t vprod0x67c0 = vmull_s8(vb67c0, va0c0);
	const int16x8_t vprod1x67c0 = vmull_s8(vb67c0, va1c0);
	const int16x8_t vprod2x67c0 = vmull_s8(vb67c0, va2c0);
	vacc0x67 = vpadalq_s16(vacc0x67, vprod0x67c0);
	vacc1x67 = vpadalq_s16(vacc1x67, vprod1x67c0);
	vacc2x67 = vpadalq_s16(vacc2x67, vprod2x67c0);
	const int8x8_t va0c1 = vreinterpret_s8_s32(va01);
	const int8x8_t va1c1 = vreinterpret_s8_s32(va11);
	const int8x8_t va2c1 = vreinterpret_s8_s32(va21);

	const int16x8_t vprod0x01c1 = vmull_s8(vb01c1, va0c1);
	const int16x8_t vprod1x01c1 = vmull_s8(vb01c1, va1c1);
	const int16x8_t vprod2x01c1 = vmull_s8(vb01c1, va2c1);
	vacc0x01 = vpadalq_s16(vacc0x01, vprod0x01c1);
	vacc1x01 = vpadalq_s16(vacc1x01, vprod1x01c1);
	vacc2x01 = vpadalq_s16(vacc2x01, vprod2x01c1);
	const int16x8_t vprod0x23c1 = vmull_s8(vb23c1, va0c1);
	const int16x8_t vprod1x23c1 = vmull_s8(vb23c1, va1c1);
	const int16x8_t vprod2x23c1 = vmull_s8(vb23c1, va2c1);
	vacc0x23 = vpadalq_s16(vacc0x23, vprod0x23c1);
	vacc1x23 = vpadalq_s16(vacc1x23, vprod1x23c1);
	vacc2x23 = vpadalq_s16(vacc2x23, vprod2x23c1);
	const int16x8_t vprod0x45c1 = vmull_s8(vb45c1, va0c1);
	const int16x8_t vprod1x45c1 = vmull_s8(vb45c1, va1c1);
	const int16x8_t vprod2x45c1 = vmull_s8(vb45c1, va2c1);
	vacc0x45 = vpadalq_s16(vacc0x45, vprod0x45c1);
	vacc1x45 = vpadalq_s16(vacc1x45, vprod1x45c1);
	vacc2x45 = vpadalq_s16(vacc2x45, vprod2x45c1);
	const int16x8_t vprod0x67c1 = vmull_s8(vb67c1, va0c1);
	const int16x8_t vprod1x67c1 = vmull_s8(vb67c1, va1c1);
	const int16x8_t vprod2x67c1 = vmull_s8(vb67c1, va2c1);
	vacc0x67 = vpadalq_s16(vacc0x67, vprod0x67c1);
	vacc1x67 = vpadalq_s16(vacc1x67, vprod1x67c1);
	vacc2x67 = vpadalq_s16(vacc2x67, vprod2x67c1);

	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 vb01c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb23c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb45c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));
	const int8x8_t vb67c0 = vld1_s8(w); w = (const void) ((uintptr_t) w + 8 sizeof(int8_t));

	const int8x8_t va0c0 = vreinterpret_s8_s32(vdup_lane_s32(vreinterpret_s32_s8(va0), 0));
	const int16x8_t vprod0x01c0 = vmull_s8(vb01c0, va0c0);
	vacc0x01 = vpadalq_s16(vacc0x01, vprod0x01c0);
	const int16x8_t vprod0x23c0 = vmull_s8(vb23c0, va0c0);
	vacc0x23 = vpadalq_s16(vacc0x23, vprod0x23c0);
	const int16x8_t vprod0x45c0 = vmull_s8(vb45c0, va0c0);
	vacc0x45 = vpadalq_s16(vacc0x45, vprod0x45c0);
	const int16x8_t vprod0x67c0 = vmull_s8(vb67c0, va0c0);
	vacc0x67 = vpadalq_s16(vacc0x67, vprod0x67c0);
	const int8x8_t va1c0 = vreinterpret_s8_s32(vdup_lane_s32(vreinterpret_s32_s8(va1), 0));
	const int16x8_t vprod1x01c0 = vmull_s8(vb01c0, va1c0);
	vacc1x01 = vpadalq_s16(vacc1x01, vprod1x01c0);
	const int16x8_t vprod1x23c0 = vmull_s8(vb23c0, va1c0);
	vacc1x23 = vpadalq_s16(vacc1x23, vprod1x23c0);
	const int16x8_t vprod1x45c0 = vmull_s8(vb45c0, va1c0);
	vacc1x45 = vpadalq_s16(vacc1x45, vprod1x45c0);
	const int16x8_t vprod1x67c0 = vmull_s8(vb67c0, va1c0);
	vacc1x67 = vpadalq_s16(vacc1x67, vprod1x67c0);
	const int8x8_t va2c0 = vreinterpret_s8_s32(vdup_lane_s32(vreinterpret_s32_s8(va2), 0));
	const int16x8_t vprod2x01c0 = vmull_s8(vb01c0, va2c0);
	vacc2x01 = vpadalq_s16(vacc2x01, vprod2x01c0);
	const int16x8_t vprod2x23c0 = vmull_s8(vb23c0, va2c0);
	vacc2x23 = vpadalq_s16(vacc2x23, vprod2x23c0);
	const int16x8_t vprod2x45c0 = vmull_s8(vb45c0, va2c0);
	vacc2x45 = vpadalq_s16(vacc2x45, vprod2x45c0);
	const int16x8_t vprod2x67c0 = vmull_s8(vb67c0, va2c0);
	vacc2x67 = vpadalq_s16(vacc2x67, vprod2x67c0);
	}

	#if XNN_ARCH_ARM64
	int32x4_t vacc0x0123 = vpaddq_s32(vacc0x01, vacc0x23);
	int32x4_t vacc0x4567 = vpaddq_s32(vacc0x45, vacc0x67);
	int32x4_t vacc1x0123 = vpaddq_s32(vacc1x01, vacc1x23);
	int32x4_t vacc1x4567 = vpaddq_s32(vacc1x45, vacc1x67);
	int32x4_t vacc2x0123 = vpaddq_s32(vacc2x01, vacc2x23);
	int32x4_t vacc2x4567 = vpaddq_s32(vacc2x45, vacc2x67);
	#else
	const int32x2_t vsum0x01 = vpadd_s32(vget_low_s32(vacc0x01), vget_high_s32(vacc0x01));
	const int32x2_t vsum0x23 = vpadd_s32(vget_low_s32(vacc0x23), vget_high_s32(vacc0x23));
	int32x4_t vacc0x0123 = vcombine_s32(vsum0x01, vsum0x23);
	const int32x2_t vsum0x45 = vpadd_s32(vget_low_s32(vacc0x45), vget_high_s32(vacc0x45));
	const int32x2_t vsum0x67 = vpadd_s32(vget_low_s32(vacc0x67), vget_high_s32(vacc0x67));
	int32x4_t vacc0x4567 = vcombine_s32(vsum0x45, vsum0x67);
	const int32x2_t vsum1x01 = vpadd_s32(vget_low_s32(vacc1x01), vget_high_s32(vacc1x01));
	const int32x2_t vsum1x23 = vpadd_s32(vget_low_s32(vacc1x23), vget_high_s32(vacc1x23));
	int32x4_t vacc1x0123 = vcombine_s32(vsum1x01, vsum1x23);
	const int32x2_t vsum1x45 = vpadd_s32(vget_low_s32(vacc1x45), vget_high_s32(vacc1x45));
	const int32x2_t vsum1x67 = vpadd_s32(vget_low_s32(vacc1x67), vget_high_s32(vacc1x67));
	int32x4_t vacc1x4567 = vcombine_s32(vsum1x45, vsum1x67);
	const int32x2_t vsum2x01 = vpadd_s32(vget_low_s32(vacc2x01), vget_high_s32(vacc2x01));
	const int32x2_t vsum2x23 = vpadd_s32(vget_low_s32(vacc2x23), vget_high_s32(vacc2x23));
	int32x4_t vacc2x0123 = vcombine_s32(vsum2x01, vsum2x23);
	const int32x2_t vsum2x45 = vpadd_s32(vget_low_s32(vacc2x45), vget_high_s32(vacc2x45));
	const int32x2_t vsum2x67 = vpadd_s32(vget_low_s32(vacc2x67), vget_high_s32(vacc2x67));
	int32x4_t vacc2x4567 = vcombine_s32(vsum2x45, vsum2x67);
	#endif

	const int32x4_t vright_pre_shift = vld1q_dup_s32(&params->rndnu_neon.right_pre_shift);
	const int32x4_t vmultiplier = vld1q_dup_s32(&params->rndnu_neon.multiplier);
	const int32x4_t vright_post_shift = vld1q_dup_s32(&params->rndnu_neon.right_post_shift);

	vacc0x0123 = vqshlq_s32(vacc0x0123, vright_pre_shift);
	vacc0x4567 = vqshlq_s32(vacc0x4567, vright_pre_shift);
	vacc1x0123 = vqshlq_s32(vacc1x0123, vright_pre_shift);
	vacc1x4567 = vqshlq_s32(vacc1x4567, vright_pre_shift);
	vacc2x0123 = vqshlq_s32(vacc2x0123, vright_pre_shift);
	vacc2x4567 = vqshlq_s32(vacc2x4567, vright_pre_shift);

	vacc0x0123 = vqdmulhq_s32(vacc0x0123, vmultiplier);
	vacc0x4567 = vqdmulhq_s32(vacc0x4567, vmultiplier);
	vacc1x0123 = vqdmulhq_s32(vacc1x0123, vmultiplier);
	vacc1x4567 = vqdmulhq_s32(vacc1x4567, vmultiplier);
	vacc2x0123 = vqdmulhq_s32(vacc2x0123, vmultiplier);
	vacc2x4567 = vqdmulhq_s32(vacc2x4567, vmultiplier);

	vacc0x0123 = vrshlq_s32(vacc0x0123, vright_post_shift);
	vacc0x4567 = vrshlq_s32(vacc0x4567, vright_post_shift);
	vacc1x0123 = vrshlq_s32(vacc1x0123, vright_post_shift);
	vacc1x4567 = vrshlq_s32(vacc1x4567, vright_post_shift);
	vacc2x0123 = vrshlq_s32(vacc2x0123, vright_post_shift);
	vacc2x4567 = vrshlq_s32(vacc2x4567, vright_post_shift);

	const int16x8_t voutput_zero_point = vld1q_dup_s16(&params->rndnu_neon.output_zero_point);
	#if XNN_ARCH_ARM64
	int16x8_t vacc0x01234567 = vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567);
	int16x8_t vacc1x01234567 = vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567);
	int16x8_t vacc2x01234567 = vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567);

	vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
	vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
	vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);

	int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
	int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
	#else
	int16x8_t vacc0x01234567 = vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567));
	int16x8_t vacc1x01234567 = vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567));
	int16x8_t vacc2x01234567 = vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567));

	vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
	vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
	vacc2x01234567 = vqaddq_s16(vacc2x01234567, 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->rndnu_neon.output_min);
	vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
	vout2x01234567 = vmax_s8(vout2x01234567, vget_low_s8(voutput_min));

	const int8x16_t voutput_max = vld1q_dup_s8(&params->rndnu_neon.output_max);
	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 {
	// Final case where not all of the 8 columns fit in the destination.
	if (nc & 4) {
	vst1q_lane_u32((void*) c0, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
	vst1q_lane_u32((void*) c1, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
	vst1_lane_u32((void*) c2, 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((void*) c0, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
	vst1q_lane_u16((void*) c1, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
	vst1_lane_u16((void*) c2, 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);
	}