text: // Auto-generated file. Do not edit!
  //   Template: src/f16-spmm/neonfp16arith.c.in
  //   Generator: tools/xngen
  //
  // Copyright 2019 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/spmm.h>
  
  
  void xnn_f16_spmm_minmax_ukernel_16x1__neonfp16arith(
      uint32_t m,
      uint32_t n,
      const void*restrict input,
      const void*restrict weights,
      const int32_t*restrict widx_dmap,
      const uint32_t*restrict nidx_nnzmap,
      void*restrict output,
      const struct xnn_f16_scaleminmax_params params[restrict XNN_MIN_ELEMENTS(1)])
  {
    assert(m != 0);
  
    const __fp16*restrict a = (const __fp16*) input;
    __fp16*restrict c = (__fp16*) output;
  
    const float16x8_t vscale = vld1q_dup_f16((const __fp16*) &params->scale);
    const float16x8_t vmax = vld1q_dup_f16((const __fp16*) &params->max);
    const float16x8_t vmin = vld1q_dup_f16((const __fp16*) &params->min);
  
    size_t i = m;
    while XNN_LIKELY(i >= 16) {
      const __fp16*restrict w = (const __fp16*) weights;
      const int32_t* dmap = widx_dmap;
      const uint32_t* nnzmap = nidx_nnzmap;
      size_t j = n;
      do {
        uint32_t nnz = *nnzmap++;
        float16x8_t vacc01234567 = vld1q_dup_f16(w); w += 1;
        float16x8_t vacc89ABCDEF = vacc01234567;
        if XNN_LIKELY(nnz != 0) {
          do {
            const intptr_t diff = *dmap++;
            const float16x8_t va01234567 = vld1q_f16(a);
            const float16x8_t va89ABCDEF = vld1q_f16(a + 8);
            a = (const __fp16*restrict) ((uintptr_t) a + (uintptr_t) diff);
            const float16x8_t vb = vld1q_dup_f16(w); w += 1;
            vacc01234567 = vfmaq_f16(vacc01234567, va01234567, vb);
            vacc89ABCDEF = vfmaq_f16(vacc89ABCDEF, va89ABCDEF, vb);
          } while (--nnz != 0);
        }
        float16x8_t vout01234567 = vmulq_f16(vacc01234567, vscale);
        float16x8_t vout89ABCDEF = vmulq_f16(vacc89ABCDEF, vscale);
        vout01234567 = vminq_f16(vout01234567, vmax);
        vout89ABCDEF = vminq_f16(vout89ABCDEF, vmax);
        vout01234567 = vmaxq_f16(vout01234567, vmin);
        vout89ABCDEF = vmaxq_f16(vout89ABCDEF, vmin);
        vst1q_f16(c, vout01234567);
        vst1q_f16(c + 8, vout89ABCDEF);
        c += m;
      } while (--j != 0);
      c -= m * n;
      c += 16;
      a += 16;
      i -= 16;
    }
    if XNN_UNLIKELY(i != 0) {
      if (i & 8) {
        const __fp16*restrict w = (const __fp16*) weights;
        const int32_t* dmap = widx_dmap;
        const uint32_t* nnzmap = nidx_nnzmap;
        size_t j = n;
        do {
          uint32_t nnz = *nnzmap++;
          float16x8_t vacc01234567 = vld1q_dup_f16(w); w += 1;
          if XNN_LIKELY(nnz != 0) {
            do {
              const intptr_t diff = *dmap++;
              const float16x8_t va01234567 = vld1q_f16(a);
              a = (const __fp16*restrict) ((uintptr_t) a + (uintptr_t) diff);
              const float16x8_t vb = vld1q_dup_f16(w); w += 1;
              vacc01234567 = vfmaq_f16(vacc01234567, va01234567, vb);
            } while (--nnz != 0);
          }
          float16x8_t vout01234567 = vminq_f16(vacc01234567, vmax);
          vout01234567 = vmaxq_f16(vout01234567, vmin);
          vst1q_f16(c, vout01234567);
          c += m;
        } while (--j != 0);
        c -= m * n;
        c += 8;
        a += 8;
      }
      if (i & 4) {
        const __fp16*restrict w = (const __fp16*) weights;
        const int32_t* dmap = widx_dmap;
        const uint32_t* nnzmap = nidx_nnzmap;
        size_t j = n;
        do {
          uint32_t nnz = *nnzmap++;
          float16x4_t vacc0123 = vld1_dup_f16(w); w += 1;
          if XNN_LIKELY(nnz != 0) {
            do {
              const intptr_t diff = *dmap++;
              const float16x4_t va0123 = vld1_f16(a);
              a = (const __fp16*restrict) ((uintptr_t) a + (uintptr_t) diff);
              const float16x4_t vb = vld1_dup_f16(w); w += 1;
              vacc0123 = vfma_f16(vacc0123, va0123, vb);
            } while (--nnz != 0);
          }
          float16x4_t vout0123 = vmin_f16(vacc0123, vget_low_f16(vmax));
          vout0123 = vmax_f16(vout0123, vget_low_f16(vmin));
          vst1_f16(c, vout0123);
          c += m;
        } while (--j != 0);
        c -= m * n;
        c += 4;
        a += 4;
      }
      if (i & 2) {
        const __fp16*restrict w = (const __fp16*) weights;
        const int32_t* dmap = widx_dmap;
        const uint32_t* nnzmap = nidx_nnzmap;
        size_t j = n;
        do {
          uint32_t nnz = *nnzmap++;
          float16x4_t vacc01 = vld1_dup_f16(w); w += 1;
          if XNN_LIKELY(nnz != 0) {
            do {
              const intptr_t diff = *dmap++;
              const float16x4_t va01 = vreinterpret_f16_f32(vld1_dup_f32(__builtin_assume_aligned(a, 1)));
              a = (const __fp16*restrict) ((uintptr_t) a + (uintptr_t) diff);
              const float16x4_t vb = vld1_dup_f16(w); w += 1;
              vacc01 = vfma_f16(vacc01, va01, vb);
            } while (--nnz != 0);
          }
          float16x4_t vout01 = vmin_f16(vacc01, vget_low_f16(vmax));
          vout01 = vmax_f16(vout01, vget_low_f16(vmin));
          vst1_lane_f32(__builtin_assume_aligned(c, 1), vreinterpret_f32_f16(vout01), 0);
          c += m;
        } while (--j != 0);
        c -= m * n;
        c += 2;
        a += 2;
      }
      if (i & 1) {
        const __fp16*restrict w = (const __fp16*) weights;
        const int32_t* dmap = widx_dmap;
        const uint32_t* nnzmap = nidx_nnzmap;
        size_t j = n;
        do {
          uint32_t nnz = *nnzmap++;
          float16x4_t vacc0 = vld1_dup_f16(w); w += 1;
          if XNN_LIKELY(nnz != 0) {
            do {
              const intptr_t diff = *dmap++;
              const float16x4_t va0 = vld1_dup_f16(a);
              a = (const __fp16*restrict) ((uintptr_t) a + (uintptr_t) diff);
              const float16x4_t vb = vld1_dup_f16(w); w += 1;
              vacc0 = vfma_f16(vacc0, va0, vb);
            } while (--nnz != 0);
          }
          float16x4_t vout0 = vmin_f16(vacc0, vget_low_f16(vmax));
          vout0 = vmax_f16(vout0, vget_low_f16(vmin));
          vst1_lane_f16(c, vout0, 0);
          c += m;
        } while (--j != 0);
        c -= m * n;
        c += 1;
        a += 1;
      }
    }
  }
  