Merge branch 'master' into js-modules

# Conflicts:
#	modules/libpref/init/all.js

1 files changed, 1740 insertions, 0 deletions

diff --git a/third_party/aom/av1/common/arm/jnt_convolve_neon.c b/third_party/aom/av1/common/arm/jnt_convolve_neon.c
new file mode 100644
index 000000000..e5674ef7c
--- /dev/null
+++ b/third_party/aom/av1/common/arm/jnt_convolve_neon.c
@@ -0,0 +1,1740 @@
+/*
+ * Copyright (c) 2018, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <arm_neon.h>
+#include <assert.h>
+
+#include "config/aom_config.h"
+#include "config/av1_rtcd.h"
+
+#include "aom_dsp/txfm_common.h"
+#include "aom_ports/mem.h"
+#include "av1/common/common.h"
+#include "av1/common/arm/convolve_neon.h"
+#include "av1/common/arm/mem_neon.h"
+#include "av1/common/arm/transpose_neon.h"
+
+#if !defined(__aarch64__)
+static INLINE void compute_avg_4x1(uint16x4_t res0, uint16x4_t d0,
+                                   const uint16_t fwd_offset,
+                                   const uint16_t bck_offset,
+                                   const int16x4_t sub_const_vec,
+                                   const int16_t round_bits,
+                                   const int use_jnt_comp_avg, uint8x8_t *t0) {
+  int16x4_t tmp0;
+  uint16x4_t tmp_u0;
+  uint32x4_t sum0;
+  int32x4_t dst0;
+  int16x8_t tmp4;
+
+  if (use_jnt_comp_avg) {
+    const int32x4_t round_bits_vec = vdupq_n_s32((int32_t)(-round_bits));
+
+    sum0 = vmull_n_u16(res0, fwd_offset);
+    sum0 = vmlal_n_u16(sum0, d0, bck_offset);
+
+    sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS);
+
+    dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), vmovl_s16(sub_const_vec));
+
+    dst0 = vqrshlq_s32(dst0, round_bits_vec);
+
+    tmp0 = vqmovn_s32(dst0);
+    tmp4 = vcombine_s16(tmp0, tmp0);
+
+    *t0 = vqmovun_s16(tmp4);
+  } else {
+    const int16x4_t round_bits_vec = vdup_n_s16(-round_bits);
+    tmp_u0 = vhadd_u16(res0, d0);
+
+    tmp0 = vsub_s16(vreinterpret_s16_u16(tmp_u0), sub_const_vec);
+
+    tmp0 = vqrshl_s16(tmp0, round_bits_vec);
+
+    tmp4 = vcombine_s16(tmp0, tmp0);
+
+    *t0 = vqmovun_s16(tmp4);
+  }
+}
+
+static INLINE void compute_avg_8x1(uint16x8_t res0, uint16x8_t d0,
+                                   const uint16_t fwd_offset,
+                                   const uint16_t bck_offset,
+                                   const int16x4_t sub_const,
+                                   const int16_t round_bits,
+                                   const int use_jnt_comp_avg, uint8x8_t *t0) {
+  int16x4_t tmp0, tmp2;
+  int16x8_t f0;
+  uint32x4_t sum0, sum2;
+  int32x4_t dst0, dst2;
+
+  uint16x8_t tmp_u0;
+
+  if (use_jnt_comp_avg) {
+    const int32x4_t sub_const_vec = vmovl_s16(sub_const);
+    const int32x4_t round_bits_vec = vdupq_n_s32(-(int32_t)round_bits);
+
+    sum0 = vmull_n_u16(vget_low_u16(res0), fwd_offset);
+    sum0 = vmlal_n_u16(sum0, vget_low_u16(d0), bck_offset);
+    sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS);
+
+    sum2 = vmull_n_u16(vget_high_u16(res0), fwd_offset);
+    sum2 = vmlal_n_u16(sum2, vget_high_u16(d0), bck_offset);
+    sum2 = vshrq_n_u32(sum2, DIST_PRECISION_BITS);
+
+    dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), sub_const_vec);
+    dst2 = vsubq_s32(vreinterpretq_s32_u32(sum2), sub_const_vec);
+
+    dst0 = vqrshlq_s32(dst0, round_bits_vec);
+    dst2 = vqrshlq_s32(dst2, round_bits_vec);
+
+    tmp0 = vqmovn_s32(dst0);
+    tmp2 = vqmovn_s32(dst2);
+
+    f0 = vcombine_s16(tmp0, tmp2);
+
+    *t0 = vqmovun_s16(f0);
+
+  } else {
+    const int16x8_t sub_const_vec = vcombine_s16(sub_const, sub_const);
+    const int16x8_t round_bits_vec = vdupq_n_s16(-round_bits);
+
+    tmp_u0 = vhaddq_u16(res0, d0);
+
+    f0 = vsubq_s16(vreinterpretq_s16_u16(tmp_u0), sub_const_vec);
+
+    f0 = vqrshlq_s16(f0, round_bits_vec);
+
+    *t0 = vqmovun_s16(f0);
+  }
+}
+#endif  // !defined(__arch64__)
+
+static INLINE void compute_avg_4x4(
+    uint16x4_t res0, uint16x4_t res1, uint16x4_t res2, uint16x4_t res3,
+    uint16x4_t d0, uint16x4_t d1, uint16x4_t d2, uint16x4_t d3,
+    const uint16_t fwd_offset, const uint16_t bck_offset,
+    const int16x4_t sub_const_vec, const int16_t round_bits,
+    const int use_jnt_comp_avg, uint8x8_t *t0, uint8x8_t *t1) {
+  int16x4_t tmp0, tmp1, tmp2, tmp3;
+  uint16x4_t tmp_u0, tmp_u1, tmp_u2, tmp_u3;
+  uint32x4_t sum0, sum1, sum2, sum3;
+
+  int32x4_t dst0, dst1, dst2, dst3;
+  int16x8_t tmp4, tmp5;
+  const int16x8_t zero = vdupq_n_s16(0);
+
+  if (use_jnt_comp_avg) {
+    const int32x4_t round_bits_vec = vdupq_n_s32((int32_t)(-round_bits));
+    const int32x4_t const_vec = vmovl_s16(sub_const_vec);
+
+    sum0 = vmull_n_u16(res0, fwd_offset);
+    sum0 = vmlal_n_u16(sum0, d0, bck_offset);
+    sum1 = vmull_n_u16(res1, fwd_offset);
+    sum1 = vmlal_n_u16(sum1, d1, bck_offset);
+    sum2 = vmull_n_u16(res2, fwd_offset);
+    sum2 = vmlal_n_u16(sum2, d2, bck_offset);
+    sum3 = vmull_n_u16(res3, fwd_offset);
+    sum3 = vmlal_n_u16(sum3, d3, bck_offset);
+
+    sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS);
+    sum1 = vshrq_n_u32(sum1, DIST_PRECISION_BITS);
+    sum2 = vshrq_n_u32(sum2, DIST_PRECISION_BITS);
+    sum3 = vshrq_n_u32(sum3, DIST_PRECISION_BITS);
+
+    dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), const_vec);
+    dst1 = vsubq_s32(vreinterpretq_s32_u32(sum1), const_vec);
+    dst2 = vsubq_s32(vreinterpretq_s32_u32(sum2), const_vec);
+    dst3 = vsubq_s32(vreinterpretq_s32_u32(sum3), const_vec);
+
+    dst0 = vqrshlq_s32(dst0, round_bits_vec);
+    dst1 = vqrshlq_s32(dst1, round_bits_vec);
+    dst2 = vqrshlq_s32(dst2, round_bits_vec);
+    dst3 = vqrshlq_s32(dst3, round_bits_vec);
+
+    tmp0 = vqmovn_s32(dst0);
+    tmp1 = vqmovn_s32(dst1);
+    tmp2 = vqmovn_s32(dst2);
+    tmp3 = vqmovn_s32(dst3);
+    tmp4 = vcombine_s16(tmp0, tmp1);
+    tmp5 = vcombine_s16(tmp2, tmp3);
+    tmp4 = vmaxq_s16(tmp4, zero);
+    tmp5 = vmaxq_s16(tmp5, zero);
+
+    *t0 = vqmovn_u16(vreinterpretq_u16_s16(tmp4));
+    *t1 = vqmovn_u16(vreinterpretq_u16_s16(tmp5));
+  } else {
+    const int16x4_t round_bits_vec = vdup_n_s16(-round_bits);
+    tmp_u0 = vhadd_u16(res0, d0);
+    tmp_u1 = vhadd_u16(res1, d1);
+    tmp_u2 = vhadd_u16(res2, d2);
+    tmp_u3 = vhadd_u16(res3, d3);
+
+    tmp0 = vsub_s16(vreinterpret_s16_u16(tmp_u0), sub_const_vec);
+    tmp1 = vsub_s16(vreinterpret_s16_u16(tmp_u1), sub_const_vec);
+    tmp2 = vsub_s16(vreinterpret_s16_u16(tmp_u2), sub_const_vec);
+    tmp3 = vsub_s16(vreinterpret_s16_u16(tmp_u3), sub_const_vec);
+
+    tmp0 = vqrshl_s16(tmp0, round_bits_vec);
+    tmp1 = vqrshl_s16(tmp1, round_bits_vec);
+    tmp2 = vqrshl_s16(tmp2, round_bits_vec);
+    tmp3 = vqrshl_s16(tmp3, round_bits_vec);
+
+    tmp4 = vcombine_s16(tmp0, tmp1);
+    tmp5 = vcombine_s16(tmp2, tmp3);
+    tmp4 = vmaxq_s16(tmp4, zero);
+    tmp5 = vmaxq_s16(tmp5, zero);
+
+    *t0 = vqmovn_u16(vreinterpretq_u16_s16(tmp4));
+    *t1 = vqmovn_u16(vreinterpretq_u16_s16(tmp5));
+  }
+}
+
+static INLINE void compute_avg_8x4(
+    uint16x8_t res0, uint16x8_t res1, uint16x8_t res2, uint16x8_t res3,
+    uint16x8_t d0, uint16x8_t d1, uint16x8_t d2, uint16x8_t d3,
+    const uint16_t fwd_offset, const uint16_t bck_offset,
+    const int16x4_t sub_const, const int16_t round_bits,
+    const int use_jnt_comp_avg, uint8x8_t *t0, uint8x8_t *t1, uint8x8_t *t2,
+    uint8x8_t *t3) {
+  int16x4_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
+  int16x8_t f0, f1, f2, f3;
+  uint32x4_t sum0, sum1, sum2, sum3;
+  uint32x4_t sum4, sum5, sum6, sum7;
+  int32x4_t dst0, dst1, dst2, dst3;
+  int32x4_t dst4, dst5, dst6, dst7;
+  uint16x8_t tmp_u0, tmp_u1, tmp_u2, tmp_u3;
+  const int16x8_t zero = vdupq_n_s16(0);
+
+  if (use_jnt_comp_avg) {
+    const int32x4_t sub_const_vec = vmovl_s16(sub_const);
+    const int32x4_t round_bits_vec = vdupq_n_s32(-(int32_t)round_bits);
+
+    sum0 = vmull_n_u16(vget_low_u16(res0), fwd_offset);
+    sum0 = vmlal_n_u16(sum0, vget_low_u16(d0), bck_offset);
+    sum1 = vmull_n_u16(vget_low_u16(res1), fwd_offset);
+    sum1 = vmlal_n_u16(sum1, vget_low_u16(d1), bck_offset);
+    sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS);
+    sum1 = vshrq_n_u32(sum1, DIST_PRECISION_BITS);
+
+    sum2 = vmull_n_u16(vget_high_u16(res0), fwd_offset);
+    sum2 = vmlal_n_u16(sum2, vget_high_u16(d0), bck_offset);
+    sum3 = vmull_n_u16(vget_high_u16(res1), fwd_offset);
+    sum3 = vmlal_n_u16(sum3, vget_high_u16(d1), bck_offset);
+    sum2 = vshrq_n_u32(sum2, DIST_PRECISION_BITS);
+    sum3 = vshrq_n_u32(sum3, DIST_PRECISION_BITS);
+
+    sum4 = vmull_n_u16(vget_low_u16(res2), fwd_offset);
+    sum4 = vmlal_n_u16(sum4, vget_low_u16(d2), bck_offset);
+    sum5 = vmull_n_u16(vget_low_u16(res3), fwd_offset);
+    sum5 = vmlal_n_u16(sum5, vget_low_u16(d3), bck_offset);
+    sum4 = vshrq_n_u32(sum4, DIST_PRECISION_BITS);
+    sum5 = vshrq_n_u32(sum5, DIST_PRECISION_BITS);
+
+    sum6 = vmull_n_u16(vget_high_u16(res2), fwd_offset);
+    sum6 = vmlal_n_u16(sum6, vget_high_u16(d2), bck_offset);
+    sum7 = vmull_n_u16(vget_high_u16(res3), fwd_offset);
+    sum7 = vmlal_n_u16(sum7, vget_high_u16(d3), bck_offset);
+    sum6 = vshrq_n_u32(sum6, DIST_PRECISION_BITS);
+    sum7 = vshrq_n_u32(sum7, DIST_PRECISION_BITS);
+
+    dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), sub_const_vec);
+    dst1 = vsubq_s32(vreinterpretq_s32_u32(sum1), sub_const_vec);
+    dst2 = vsubq_s32(vreinterpretq_s32_u32(sum2), sub_const_vec);
+    dst3 = vsubq_s32(vreinterpretq_s32_u32(sum3), sub_const_vec);
+    dst4 = vsubq_s32(vreinterpretq_s32_u32(sum4), sub_const_vec);
+    dst5 = vsubq_s32(vreinterpretq_s32_u32(sum5), sub_const_vec);
+    dst6 = vsubq_s32(vreinterpretq_s32_u32(sum6), sub_const_vec);
+    dst7 = vsubq_s32(vreinterpretq_s32_u32(sum7), sub_const_vec);
+
+    dst0 = vqrshlq_s32(dst0, round_bits_vec);
+    dst1 = vqrshlq_s32(dst1, round_bits_vec);
+    dst2 = vqrshlq_s32(dst2, round_bits_vec);
+    dst3 = vqrshlq_s32(dst3, round_bits_vec);
+    dst4 = vqrshlq_s32(dst4, round_bits_vec);
+    dst5 = vqrshlq_s32(dst5, round_bits_vec);
+    dst6 = vqrshlq_s32(dst6, round_bits_vec);
+    dst7 = vqrshlq_s32(dst7, round_bits_vec);
+
+    tmp0 = vqmovn_s32(dst0);
+    tmp1 = vqmovn_s32(dst1);
+    tmp2 = vqmovn_s32(dst2);
+    tmp3 = vqmovn_s32(dst3);
+    tmp4 = vqmovn_s32(dst4);
+    tmp5 = vqmovn_s32(dst5);
+    tmp6 = vqmovn_s32(dst6);
+    tmp7 = vqmovn_s32(dst7);
+
+    f0 = vcombine_s16(tmp0, tmp2);
+    f1 = vcombine_s16(tmp1, tmp3);
+    f2 = vcombine_s16(tmp4, tmp6);
+    f3 = vcombine_s16(tmp5, tmp7);
+
+    f0 = vmaxq_s16(f0, zero);
+    f1 = vmaxq_s16(f1, zero);
+    f2 = vmaxq_s16(f2, zero);
+    f3 = vmaxq_s16(f3, zero);
+
+    *t0 = vqmovn_u16(vreinterpretq_u16_s16(f0));
+    *t1 = vqmovn_u16(vreinterpretq_u16_s16(f1));
+    *t2 = vqmovn_u16(vreinterpretq_u16_s16(f2));
+    *t3 = vqmovn_u16(vreinterpretq_u16_s16(f3));
+
+  } else {
+    const int16x8_t sub_const_vec = vcombine_s16(sub_const, sub_const);
+    const int16x8_t round_bits_vec = vdupq_n_s16(-round_bits);
+
+    tmp_u0 = vhaddq_u16(res0, d0);
+    tmp_u1 = vhaddq_u16(res1, d1);
+    tmp_u2 = vhaddq_u16(res2, d2);
+    tmp_u3 = vhaddq_u16(res3, d3);
+
+    f0 = vsubq_s16(vreinterpretq_s16_u16(tmp_u0), sub_const_vec);
+    f1 = vsubq_s16(vreinterpretq_s16_u16(tmp_u1), sub_const_vec);
+    f2 = vsubq_s16(vreinterpretq_s16_u16(tmp_u2), sub_const_vec);
+    f3 = vsubq_s16(vreinterpretq_s16_u16(tmp_u3), sub_const_vec);
+
+    f0 = vqrshlq_s16(f0, round_bits_vec);
+    f1 = vqrshlq_s16(f1, round_bits_vec);
+    f2 = vqrshlq_s16(f2, round_bits_vec);
+    f3 = vqrshlq_s16(f3, round_bits_vec);
+
+    f0 = vmaxq_s16(f0, zero);
+    f1 = vmaxq_s16(f1, zero);
+    f2 = vmaxq_s16(f2, zero);
+    f3 = vmaxq_s16(f3, zero);
+
+    *t0 = vqmovn_u16(vreinterpretq_u16_s16(f0));
+    *t1 = vqmovn_u16(vreinterpretq_u16_s16(f1));
+    *t2 = vqmovn_u16(vreinterpretq_u16_s16(f2));
+    *t3 = vqmovn_u16(vreinterpretq_u16_s16(f3));
+  }
+}
+
+static INLINE void jnt_convolve_2d_horiz_neon(
+    const uint8_t *src, int src_stride, int16_t *im_block, const int im_stride,
+    int16_t *x_filter_tmp, const int im_h, int w, const int round_0) {
+  const int bd = 8;
+  const uint8_t *s;
+  int16_t *dst_ptr;
+  int dst_stride;
+  int width, height;
+
+  dst_ptr = im_block;
+  dst_stride = im_stride;
+  height = im_h;
+  width = w;
+
+  if (w == 4) {
+    int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0;
+    int16x8_t tt0;
+    uint8x8_t t0;
+
+    const int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2)));
+    const int16x4_t shift_round_0 = vdup_n_s16(-(round_0));
+
+#if defined(__aarch64__)
+    int16x4_t s8, s9, s10, d1, d2, d3;
+    int16x8_t tt1, tt2, tt3;
+    uint8x8_t t1, t2, t3;
+#endif
+    do {
+      s = src;
+      __builtin_prefetch(s + 0 * src_stride);
+#if defined(__aarch64__)
+      __builtin_prefetch(s + 1 * src_stride);
+      __builtin_prefetch(s + 2 * src_stride);
+      __builtin_prefetch(s + 3 * src_stride);
+
+      load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3);
+      transpose_u8_8x4(&t0, &t1, &t2, &t3);
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      tt1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+      tt2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+      tt3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+      s0 = vget_low_s16(tt0);
+      s1 = vget_low_s16(tt1);
+      s2 = vget_low_s16(tt2);
+      s3 = vget_low_s16(tt3);
+      s4 = vget_high_s16(tt0);
+      s5 = vget_high_s16(tt1);
+      s6 = vget_high_s16(tt2);
+      __builtin_prefetch(dst_ptr + 0 * dst_stride);
+      __builtin_prefetch(dst_ptr + 1 * dst_stride);
+      __builtin_prefetch(dst_ptr + 2 * dst_stride);
+      __builtin_prefetch(dst_ptr + 3 * dst_stride);
+      s += 7;
+
+      load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3);
+      transpose_u8_8x4(&t0, &t1, &t2, &t3);
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      tt1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+      tt2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+      tt3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+      s7 = vget_low_s16(tt0);
+      s8 = vget_low_s16(tt1);
+      s9 = vget_low_s16(tt2);
+      s10 = vget_low_s16(tt3);
+
+      d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                             horiz_const, shift_round_0);
+      d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp,
+                             horiz_const, shift_round_0);
+      d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp,
+                             horiz_const, shift_round_0);
+      d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp,
+                             horiz_const, shift_round_0);
+
+      transpose_s16_4x4d(&d0, &d1, &d2, &d3);
+
+      vst1_s16((dst_ptr + 0 * dst_stride), d0);
+      vst1_s16((dst_ptr + 1 * dst_stride), d1);
+      vst1_s16((dst_ptr + 2 * dst_stride), d2);
+      vst1_s16((dst_ptr + 3 * dst_stride), d3);
+
+      src += 4 * src_stride;
+      dst_ptr += 4 * dst_stride;
+      height -= 4;
+#else
+      t0 = vld1_u8(s);                            // a0 a1 a2 a3 a4 a5 a6 a7
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7
+      s0 = vget_low_s16(tt0);                     // a0 a1 a2 a3
+      s4 = vget_high_s16(tt0);                    // a4 a5 a6 a7
+      __builtin_prefetch(dst_ptr);
+      s += 8;
+      t0 = vld1_u8(s);  // a8 a9 a10 a11
+
+      // a8 a9 a10 a11
+      s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+      s1 = vext_s16(s0, s4, 1);  // a1 a2 a3 a4
+      s2 = vext_s16(s0, s4, 2);  // a2 a3 a4 a5
+      s3 = vext_s16(s0, s4, 3);  // a3 a4 a5 a6
+      s5 = vext_s16(s4, s7, 1);  // a5 a6 a7 a8
+      s6 = vext_s16(s4, s7, 2);  // a6 a7 a8 a9
+      s7 = vext_s16(s4, s7, 3);  // a7 a8 a9 a10
+
+      d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                             horiz_const, shift_round_0);
+
+      vst1_s16(dst_ptr, d0);
+
+      src += src_stride;
+      dst_ptr += dst_stride;
+      height -= 1;
+#endif
+    } while (height > 0);
+  } else {
+    int16_t *d_tmp;
+    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+    int16x8_t res0;
+    uint8x8_t t0;
+
+    const int16x8_t horiz_const = vdupq_n_s16((1 << (bd + FILTER_BITS - 2)));
+    const int16x8_t shift_round_0 = vdupq_n_s16(-(round_0));
+    do {
+#if defined(__aarch64__)
+      uint8x8_t t1, t2, t3, t4, t5, t6, t7;
+      int16x8_t s8, s9, s10, s11, s12, s13, s14;
+      int16x8_t res1, res2, res3, res4, res5, res6, res7;
+      __builtin_prefetch(src + 0 * src_stride);
+      __builtin_prefetch(src + 1 * src_stride);
+      __builtin_prefetch(src + 2 * src_stride);
+      __builtin_prefetch(src + 3 * src_stride);
+      __builtin_prefetch(src + 4 * src_stride);
+      __builtin_prefetch(src + 5 * src_stride);
+      __builtin_prefetch(src + 6 * src_stride);
+      __builtin_prefetch(src + 7 * src_stride);
+      load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+      transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+      s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+      s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+      s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+      s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+      s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+      s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+      width = w;
+      s = src + 7;
+      d_tmp = dst_ptr;
+      __builtin_prefetch(dst_ptr + 0 * dst_stride);
+      __builtin_prefetch(dst_ptr + 1 * dst_stride);
+      __builtin_prefetch(dst_ptr + 2 * dst_stride);
+      __builtin_prefetch(dst_ptr + 3 * dst_stride);
+      __builtin_prefetch(dst_ptr + 4 * dst_stride);
+      __builtin_prefetch(dst_ptr + 5 * dst_stride);
+      __builtin_prefetch(dst_ptr + 6 * dst_stride);
+      __builtin_prefetch(dst_ptr + 7 * dst_stride);
+
+      do {
+        load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+        transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+        s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+        s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+        s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+        s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+        s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+        s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+        s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+        res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                                 horiz_const, shift_round_0);
+        res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp,
+                                 horiz_const, shift_round_0);
+        res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp,
+                                 horiz_const, shift_round_0);
+        res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp,
+                                 horiz_const, shift_round_0);
+        res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, x_filter_tmp,
+                                 horiz_const, shift_round_0);
+        res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12,
+                                 x_filter_tmp, horiz_const, shift_round_0);
+        res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13,
+                                 x_filter_tmp, horiz_const, shift_round_0);
+        res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14,
+                                 x_filter_tmp, horiz_const, shift_round_0);
+
+        transpose_s16_8x8(&res0, &res1, &res2, &res3, &res4, &res5, &res6,
+                          &res7);
+
+        store_s16_8x8(d_tmp, dst_stride, res0, res1, res2, res3, res4, res5,
+                      res6, res7);
+        s0 = s8;
+        s1 = s9;
+        s2 = s10;
+        s3 = s11;
+        s4 = s12;
+        s5 = s13;
+        s6 = s14;
+        s += 8;
+        d_tmp += 8;
+        width -= 8;
+      } while (width > 0);
+      src += 8 * src_stride;
+      dst_ptr += 8 * dst_stride;
+      height -= 8;
+#else
+      int16x8_t temp_0;
+      t0 = vld1_u8(src);
+      s0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7
+
+      width = w;
+      s = src + 8;
+      d_tmp = dst_ptr;
+      __builtin_prefetch(dst_ptr);
+
+      do {
+        t0 = vld1_u8(s);  // a8 a9 a10 a11 a12 a13 a14 a15
+        s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        temp_0 = s0;
+        s0 = s7;
+
+        s1 = vextq_s16(temp_0, s7, 1);  // a1 a2 a3 a4 a5 a6 a7 a8
+        s2 = vextq_s16(temp_0, s7, 2);  // a2 a3 a4 a5 a6 a7 a8 a9
+        s3 = vextq_s16(temp_0, s7, 3);  // a3 a4 a5 a6 a7 a8 a9 a10
+        s4 = vextq_s16(temp_0, s7, 4);  // a4 a5 a6 a7 a8 a9 a10 a11
+        s5 = vextq_s16(temp_0, s7, 5);  // a5 a6 a7 a8 a9 a10 a11 a12
+        s6 = vextq_s16(temp_0, s7, 6);  // a6 a7 a8 a9 a10 a11 a12 a13
+        s7 = vextq_s16(temp_0, s7, 7);  // a7 a8 a9 a10 a11 a12 a13 a14
+
+        res0 = convolve8_8x8_s16(temp_0, s1, s2, s3, s4, s5, s6, s7,
+                                 x_filter_tmp, horiz_const, shift_round_0);
+        vst1q_s16(d_tmp, res0);
+
+        s += 8;
+        d_tmp += 8;
+        width -= 8;
+      } while (width > 0);
+      src += src_stride;
+      dst_ptr += dst_stride;
+      height -= 1;
+#endif
+    } while (height > 0);
+  }
+}
+
+static INLINE void jnt_convolve_2d_vert_neon(
+    int16_t *im_block, const int im_stride, uint8_t *dst8, int dst8_stride,
+    ConvolveParams *conv_params, const int16_t *y_filter, int h, int w) {
+  uint8_t *dst_u8_ptr, *d_u8;
+  CONV_BUF_TYPE *dst_ptr, *dst;
+  int16_t *src_ptr, *s;
+  uint16_t *d;
+
+  const int bd = 8;
+  int height;
+  int dst_stride = conv_params->dst_stride;
+  const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+  const int16_t sub_const = (1 << (offset_bits - conv_params->round_1)) +
+                            (1 << (offset_bits - conv_params->round_1 - 1));
+
+  const int16_t round_bits =
+      2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
+  const int offset = bd + 2 * FILTER_BITS - conv_params->round_0;
+  const int32x4_t round_shift_vec = vdupq_n_s32(-(conv_params->round_1));
+  const int32x4_t offset_const = vdupq_n_s32(1 << offset);
+  const int16x4_t sub_const_vec = vdup_n_s16(sub_const);
+  const uint16_t fwd_offset = conv_params->fwd_offset;
+  const uint16_t bck_offset = conv_params->bck_offset;
+  const int do_average = conv_params->do_average;
+  const int use_jnt_comp_avg = conv_params->use_jnt_comp_avg;
+
+  int16x4_t s0, s1, s2, s3, s4, s5, s6, s7;
+  uint16x4_t res4, d0;
+  uint8x8_t t0;
+
+#if defined(__aarch64__)
+  int16x4_t s8, s9, s10;
+  uint16x4_t res5, res6, res7, d1, d2, d3;
+  uint8x8_t t1;
+#endif
+
+  dst = conv_params->dst;
+  src_ptr = im_block;
+  dst_u8_ptr = dst8;
+  dst_ptr = dst;
+  height = h;
+
+  do {
+    d = dst_ptr;
+    d_u8 = dst_u8_ptr;
+    s = src_ptr;
+    height = h;
+
+    __builtin_prefetch(s + 0 * im_stride);
+    __builtin_prefetch(s + 1 * im_stride);
+    __builtin_prefetch(s + 2 * im_stride);
+    __builtin_prefetch(s + 3 * im_stride);
+    __builtin_prefetch(s + 4 * im_stride);
+    __builtin_prefetch(s + 5 * im_stride);
+    __builtin_prefetch(s + 6 * im_stride);
+    __builtin_prefetch(s + 7 * im_stride);
+
+    load_s16_4x8(s, im_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7);
+    s += (7 * im_stride);
+
+    do {
+#if defined(__aarch64__)
+      load_s16_4x4(s, im_stride, &s7, &s8, &s9, &s10);
+      s += (im_stride << 2);
+
+      __builtin_prefetch(d + 0 * dst_stride);
+      __builtin_prefetch(d + 1 * dst_stride);
+      __builtin_prefetch(d + 2 * dst_stride);
+      __builtin_prefetch(d + 3 * dst_stride);
+
+      __builtin_prefetch(d_u8 + 4 * dst8_stride);
+      __builtin_prefetch(d_u8 + 5 * dst8_stride);
+      __builtin_prefetch(d_u8 + 6 * dst8_stride);
+      __builtin_prefetch(d_u8 + 7 * dst8_stride);
+
+      d0 = convolve8_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+                             round_shift_vec, offset_const);
+      d1 = convolve8_4x4_s32(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+                             round_shift_vec, offset_const);
+      d2 = convolve8_4x4_s32(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+                             round_shift_vec, offset_const);
+      d3 = convolve8_4x4_s32(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+                             round_shift_vec, offset_const);
+
+      if (do_average) {
+        load_u16_4x4(d, dst_stride, &res4, &res5, &res6, &res7);
+        d += (dst_stride << 2);
+
+        compute_avg_4x4(res4, res5, res6, res7, d0, d1, d2, d3, fwd_offset,
+                        bck_offset, sub_const_vec, round_bits, use_jnt_comp_avg,
+                        &t0, &t1);
+
+        vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0);
+        d_u8 += dst8_stride;
+        vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 1);
+        d_u8 += dst8_stride;
+        vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 0);
+        d_u8 += dst8_stride;
+        vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 1);
+        d_u8 += dst8_stride;
+
+      } else {
+        store_u16_4x4(d, dst_stride, d0, d1, d2, d3);
+        d += (dst_stride << 2);
+      }
+      s0 = s4;
+      s1 = s5;
+      s2 = s6;
+      s3 = s7;
+      s4 = s8;
+      s5 = s9;
+      s6 = s10;
+      height -= 4;
+#else
+      s7 = vld1_s16(s);
+      s += (im_stride);
+
+      __builtin_prefetch(d + 0 * dst_stride);
+      __builtin_prefetch(d_u8 + 0 * dst8_stride);
+
+      d0 = convolve8_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+                             round_shift_vec, offset_const);
+
+      if (do_average) {
+        res4 = vld1_u16(d);
+        d += (dst_stride);
+
+        compute_avg_4x1(res4, d0, fwd_offset, bck_offset, sub_const_vec,
+                        round_bits, use_jnt_comp_avg, &t0);
+
+        vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0);
+        d_u8 += dst8_stride;
+
+      } else {
+        vst1_u16(d, d0);
+        d += (dst_stride);
+      }
+      s0 = s1;
+      s1 = s2;
+      s2 = s3;
+      s3 = s4;
+      s4 = s5;
+      s5 = s6;
+      s6 = s7;
+      height--;
+#endif
+    } while (height > 0);
+    src_ptr += 4;
+    dst_ptr += 4;
+    dst_u8_ptr += 4;
+    w -= 4;
+  } while (w > 0);
+}
+
+void av1_jnt_convolve_2d_neon(const uint8_t *src, int src_stride, uint8_t *dst8,
+                              int dst8_stride, int w, int h,
+                              const InterpFilterParams *filter_params_x,
+                              const InterpFilterParams *filter_params_y,
+                              const int subpel_x_q4, const int subpel_y_q4,
+                              ConvolveParams *conv_params) {
+  assert(!(w % 4));
+  assert(!(h % 4));
+
+  DECLARE_ALIGNED(16, int16_t,
+                  im_block[(MAX_SB_SIZE + HORIZ_EXTRA_ROWS) * MAX_SB_SIZE]);
+
+  const int im_h = h + filter_params_y->taps - 1;
+  const int im_stride = MAX_SB_SIZE;
+  const int vert_offset = filter_params_y->taps / 2 - 1;
+  const int horiz_offset = filter_params_x->taps / 2 - 1;
+  const int round_0 = conv_params->round_0 - 1;
+  const uint8_t *src_ptr = src - vert_offset * src_stride - horiz_offset;
+  const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
+      filter_params_x, subpel_x_q4 & SUBPEL_MASK);
+  const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
+      filter_params_y, subpel_y_q4 & SUBPEL_MASK);
+
+  int16_t x_filter_tmp[8];
+  int16x8_t filter_x_coef = vld1q_s16(x_filter);
+
+  // filter coeffs are even, so downshifting by 1 to reduce intermediate
+  // precision requirements.
+  filter_x_coef = vshrq_n_s16(filter_x_coef, 1);
+  vst1q_s16(&x_filter_tmp[0], filter_x_coef);
+
+  jnt_convolve_2d_horiz_neon(src_ptr, src_stride, im_block, im_stride,
+                             x_filter_tmp, im_h, w, round_0);
+
+  jnt_convolve_2d_vert_neon(im_block, im_stride, dst8, dst8_stride, conv_params,
+                            y_filter, h, w);
+}
+
+void av1_jnt_convolve_2d_copy_neon(const uint8_t *src, int src_stride,
+                                   uint8_t *dst8, int dst8_stride, int w, int h,
+                                   const InterpFilterParams *filter_params_x,
+                                   const InterpFilterParams *filter_params_y,
+                                   const int subpel_x_q4, const int subpel_y_q4,
+                                   ConvolveParams *conv_params) {
+  uint8x8_t res0_8, res1_8, res2_8, res3_8, tmp_shift0, tmp_shift1, tmp_shift2,
+      tmp_shift3;
+  uint16x8_t res_q0, res_q1, res_q2, res_q3, tmp_q0, tmp_q1, tmp_q2, tmp_q3;
+  uint16x4_t tmp4, tmp5, tmp6, tmp7, res4, res5, res6, res7;
+  const uint8_t *src1, *src2;
+  uint8_t *dst8_1;
+  CONV_BUF_TYPE *dst = conv_params->dst, *dst_1, *dst_2;
+  const int dst_stride = conv_params->dst_stride;
+  int x, y;
+  const int16_t bits =
+      FILTER_BITS * 2 - conv_params->round_1 - conv_params->round_0;
+  const int bd = 8;
+  const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+  const int round_offset = (1 << (offset_bits - conv_params->round_1)) +
+                           (1 << (offset_bits - conv_params->round_1 - 1));
+  const int16x4_t sub_const_vec = vdup_n_s16((int16_t)round_offset);
+  const uint16x8_t dup_round_offset16x8 = vdupq_n_u16((uint16_t)round_offset);
+  const int16x4_t dup_bits16x4 = vdup_n_s16(bits);
+  const int16x8_t dup_bits16x8 = vdupq_n_s16(bits);
+
+  (void)filter_params_x;
+  (void)filter_params_y;
+  (void)subpel_x_q4;
+  (void)subpel_y_q4;
+
+  if (!(w & 0x07)) {
+    for (y = 0; y < (h >> 2); ++y) {
+      src1 = src;
+      dst8_1 = dst8;
+      dst_1 = dst;
+      for (x = 0; x < (w >> 3); ++x) {
+        src2 = src1;
+        load_u8_8x4(src2, src_stride, &res0_8, &res1_8, &res2_8, &res3_8);
+
+        res_q0 = vaddq_u16(vshlq_u16(vmovl_u8(res0_8), dup_bits16x8),
+                           dup_round_offset16x8);
+        res_q1 = vaddq_u16(vshlq_u16(vmovl_u8(res1_8), dup_bits16x8),
+                           dup_round_offset16x8);
+        res_q2 = vaddq_u16(vshlq_u16(vmovl_u8(res2_8), dup_bits16x8),
+                           dup_round_offset16x8);
+        res_q3 = vaddq_u16(vshlq_u16(vmovl_u8(res3_8), dup_bits16x8),
+                           dup_round_offset16x8);
+
+        if (conv_params->do_average) {
+          dst_2 = dst_1;
+          load_u16_8x4(dst_2, dst_stride, &tmp_q0, &tmp_q1, &tmp_q2, &tmp_q3);
+
+          compute_avg_8x4(tmp_q0, tmp_q1, tmp_q2, tmp_q3, res_q0, res_q1,
+                          res_q2, res_q3, conv_params->fwd_offset,
+                          conv_params->bck_offset, sub_const_vec, bits,
+                          conv_params->use_jnt_comp_avg, &tmp_shift0,
+                          &tmp_shift1, &tmp_shift2, &tmp_shift3);
+
+          vst1_u8(dst8_1 + (0 * dst8_stride), tmp_shift0);
+          vst1_u8(dst8_1 + (1 * dst8_stride), tmp_shift1);
+          vst1_u8(dst8_1 + (2 * dst8_stride), tmp_shift2);
+          vst1_u8(dst8_1 + (3 * dst8_stride), tmp_shift3);
+
+        } else {
+          vst1q_u16(dst_1 + (0 * dst_stride), res_q0);
+          vst1q_u16(dst_1 + (1 * dst_stride), res_q1);
+          vst1q_u16(dst_1 + (2 * dst_stride), res_q2);
+          vst1q_u16(dst_1 + (3 * dst_stride), res_q3);
+        }
+        src1 = src1 + 8;
+        dst_1 = dst_1 + 8;
+        dst8_1 = dst8_1 + 8;
+      }
+      src += src_stride * 4;
+      dst8 += dst8_stride * 4;
+      dst += dst_stride * 4;
+    }
+  } else if (!(w & 0x03)) {
+    for (y = 0; y < (h >> 2); ++y) {
+      src1 = src;
+      dst8_1 = dst8;
+      dst_1 = dst;
+
+      load_u8_8x4(src1, src_stride, &res0_8, &res1_8, &res2_8, &res3_8);
+
+      res4 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res0_8)), dup_bits16x4),
+                      vreinterpret_u16_s16(sub_const_vec));
+      res5 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res1_8)), dup_bits16x4),
+                      vreinterpret_u16_s16(sub_const_vec));
+      res6 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res2_8)), dup_bits16x4),
+                      vreinterpret_u16_s16(sub_const_vec));
+      res7 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res3_8)), dup_bits16x4),
+                      vreinterpret_u16_s16(sub_const_vec));
+      if (conv_params->do_average) {
+        load_u16_4x4(dst_1, dst_stride, &tmp4, &tmp5, &tmp6, &tmp7);
+
+        compute_avg_4x4(tmp4, tmp5, tmp6, tmp7, res4, res5, res6, res7,
+                        conv_params->fwd_offset, conv_params->bck_offset,
+                        sub_const_vec, bits, conv_params->use_jnt_comp_avg,
+                        &tmp_shift0, &tmp_shift1);
+
+        vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift0), 0);
+        dst8_1 += dst8_stride;
+        vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift0), 1);
+        dst8_1 += dst8_stride;
+        vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift1), 0);
+        dst8_1 += dst8_stride;
+        vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift1), 1);
+
+      } else {
+        vst1_u16(dst_1, res4);
+        dst_1 += dst_stride;
+        vst1_u16(dst_1, res5);
+        dst_1 += dst_stride;
+        vst1_u16(dst_1, res6);
+        dst_1 += dst_stride;
+        vst1_u16(dst_1, res7);
+      }
+      src += src_stride * 4;
+      dst += dst_stride * 4;
+      dst8 += dst8_stride * 4;
+    }
+  }
+}
+
+void av1_jnt_convolve_x_neon(const uint8_t *src, int src_stride, uint8_t *dst8,
+                             int dst8_stride, int w, int h,
+                             const InterpFilterParams *filter_params_x,
+                             const InterpFilterParams *filter_params_y,
+                             const int subpel_x_q4, const int subpel_y_q4,
+                             ConvolveParams *conv_params) {
+  assert(!(w % 4));
+  assert(!(h % 4));
+
+  CONV_BUF_TYPE *dst = conv_params->dst;
+  int dst_stride = conv_params->dst_stride;
+  const int horiz_offset = filter_params_x->taps / 2 - 1;
+  const int bits = FILTER_BITS - conv_params->round_1;
+  const int bd = 8;
+  const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+  const int round_offset = (1 << (offset_bits - conv_params->round_1)) +
+                           (1 << (offset_bits - conv_params->round_1 - 1));
+  const int round_bits =
+      2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
+  const uint16_t fwd_offset = conv_params->fwd_offset;
+  const uint16_t bck_offset = conv_params->bck_offset;
+  const int use_jnt_comp_avg = conv_params->use_jnt_comp_avg;
+
+  (void)filter_params_y;
+  (void)subpel_y_q4;
+
+  // horizontal filter
+  const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
+      filter_params_x, subpel_x_q4 & SUBPEL_MASK);
+
+  const uint8_t *src_ptr = src - horiz_offset;
+
+  int16_t x_filter_tmp[8];
+  int16x8_t filter_x_coef = vld1q_s16(x_filter);
+
+  // filter coeffs are even, so downshifting by 1 to reduce intermediate
+  // precision requirements.
+  filter_x_coef = vshrq_n_s16(filter_x_coef, 1);
+  vst1q_s16(&x_filter_tmp[0], filter_x_coef);
+
+  const uint8_t *s;
+  uint8_t *d_u8;
+  uint8_t *dst_u8_ptr;
+  CONV_BUF_TYPE *d, *dst_ptr;
+  int width, height;
+  uint8x8_t t0;
+#if defined(__aarch64__)
+  uint8x8_t t1, t2, t3, t4, t5, t6, t7;
+#endif
+  s = src_ptr;
+  dst_ptr = dst;
+  dst_u8_ptr = dst8;
+  width = w;
+  height = h;
+
+  if ((w == 4) || (h == 4)) {
+    int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0;
+    int16x8_t tt0;
+    uint16x4_t res4;
+#if defined(__aarch64__)
+    int16x4_t s8, s9, s10, d1, d2, d3;
+    int16x8_t tt1, tt2, tt3;
+    uint16x4_t res5, res6, res7;
+    uint32x2_t tu0 = vdup_n_u32(0), tu1 = vdup_n_u32(0);
+    int16x8_t u0, u1;
+#else
+    int16x4_t temp_0;
+#endif
+    const int16x4_t zero = vdup_n_s16(0);
+    const int16x4_t round_offset_vec = vdup_n_s16(round_offset);
+    const int16x4_t shift_round_0 = vdup_n_s16(-conv_params->round_0 + 1);
+    const int16x4_t horiz_const = vdup_n_s16(bits);
+    do {
+      s = src_ptr;
+      d = dst_ptr;
+      d_u8 = dst_u8_ptr;
+      width = w;
+      __builtin_prefetch(s + 0 * src_stride);
+#if defined(__aarch64__)
+      __builtin_prefetch(s + 1 * src_stride);
+      __builtin_prefetch(s + 2 * src_stride);
+      __builtin_prefetch(s + 3 * src_stride);
+
+      load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3);
+      transpose_u8_8x4(&t0, &t1, &t2, &t3);
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      tt1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+      tt2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+      tt3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+      s0 = vget_low_s16(tt0);
+      s1 = vget_low_s16(tt1);
+      s2 = vget_low_s16(tt2);
+      s3 = vget_low_s16(tt3);
+      s4 = vget_high_s16(tt0);
+      s5 = vget_high_s16(tt1);
+      s6 = vget_high_s16(tt2);
+      __builtin_prefetch(d + 0 * dst_stride);
+      __builtin_prefetch(d + 1 * dst_stride);
+      __builtin_prefetch(d + 2 * dst_stride);
+      __builtin_prefetch(d + 3 * dst_stride);
+      s += 7;
+      do {
+        load_unaligned_u8_4x4(s, src_stride, &tu0, &tu1);
+        t0 = vreinterpret_u8_u32(tu0);
+        t1 = vreinterpret_u8_u32(tu1);
+
+        transpose_u8_4x4(&t0, &t1);
+        u0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        u1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+
+        s7 = vget_low_s16(u0);
+        s8 = vget_low_s16(u1);
+        s9 = vget_high_s16(u0);
+        s10 = vget_high_s16(u1);
+
+        d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                               zero, shift_round_0);
+        d0 = vrshl_s16(d0, horiz_const);
+        d0 = vadd_s16(d0, round_offset_vec);
+        d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp,
+                               zero, shift_round_0);
+        d1 = vrshl_s16(d1, horiz_const);
+        d1 = vadd_s16(d1, round_offset_vec);
+        d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp,
+                               zero, shift_round_0);
+        d2 = vrshl_s16(d2, horiz_const);
+        d2 = vadd_s16(d2, round_offset_vec);
+        d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp,
+                               zero, shift_round_0);
+        d3 = vrshl_s16(d3, horiz_const);
+        d3 = vadd_s16(d3, round_offset_vec);
+
+        transpose_s16_4x4d(&d0, &d1, &d2, &d3);
+
+        if (conv_params->do_average) {
+          __builtin_prefetch(d + 0 * dst_stride);
+          __builtin_prefetch(d + 1 * dst_stride);
+          __builtin_prefetch(d + 2 * dst_stride);
+          __builtin_prefetch(d + 3 * dst_stride);
+
+          __builtin_prefetch(d_u8 + 0 * dst8_stride);
+          __builtin_prefetch(d_u8 + 1 * dst8_stride);
+          __builtin_prefetch(d_u8 + 2 * dst8_stride);
+          __builtin_prefetch(d_u8 + 3 * dst8_stride);
+
+          load_u16_4x4(d, dst_stride, &res4, &res5, &res6, &res7);
+
+          compute_avg_4x4(res4, res5, res6, res7, vreinterpret_u16_s16(d0),
+                          vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2),
+                          vreinterpret_u16_s16(d3), fwd_offset, bck_offset,
+                          round_offset_vec, round_bits, use_jnt_comp_avg, &t0,
+                          &t1);
+
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0),
+                        0);  // 00 01 02 03
+          vst1_lane_u32((uint32_t *)(d_u8 + dst8_stride),
+                        vreinterpret_u32_u8(t0),
+                        1);  // 10 11 12 13
+          vst1_lane_u32((uint32_t *)(d_u8 + 2 * dst8_stride),
+                        vreinterpret_u32_u8(t1),
+                        0);  // 20 21 22 23
+          vst1_lane_u32((uint32_t *)(d_u8 + 3 * dst8_stride),
+                        vreinterpret_u32_u8(t1),
+                        1);  // 30 31 32 33
+        } else {
+          store_u16_4x4(d, dst_stride, vreinterpret_u16_s16(d0),
+                        vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2),
+                        vreinterpret_u16_s16(d3));
+        }
+
+        s0 = s4;
+        s1 = s5;
+        s2 = s6;
+        s3 = s7;
+        s4 = s8;
+        s5 = s9;
+        s6 = s10;
+
+        s += 4;
+        width -= 4;
+        d += 4;
+        d_u8 += 4;
+      } while (width > 0);
+      src_ptr += (src_stride << 2);
+      dst_ptr += (dst_stride << 2);
+      dst_u8_ptr += (dst8_stride << 2);
+      height -= 4;
+#else
+      t0 = vld1_u8(s);                            // a0 a1 a2 a3 a4 a5 a6 a7
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7
+      s0 = vget_low_s16(tt0);                     // a0 a1 a2 a3
+      s4 = vget_high_s16(tt0);                    // a4 a5 a6 a7
+      __builtin_prefetch(d);
+
+      s += 8;
+      do {
+        t0 = vld1_u8(s);  // a8 a9 a10 a11
+
+        // a8 a9 a10 a11
+        s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+        temp_0 = s7;
+        s1 = vext_s16(s0, s4, 1);  // a1 a2 a3 a4
+        s2 = vext_s16(s0, s4, 2);  // a2 a3 a4 a5
+        s3 = vext_s16(s0, s4, 3);  // a3 a4 a5 a6
+        s5 = vext_s16(s4, s7, 1);  // a5 a6 a7 a8
+        s6 = vext_s16(s4, s7, 2);  // a6 a7 a8 a9
+        s7 = vext_s16(s4, s7, 3);  // a7 a8 a9 a10
+
+        d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                               zero, shift_round_0);
+        d0 = vrshl_s16(d0, horiz_const);
+        d0 = vadd_s16(d0, round_offset_vec);
+        s0 = s4;
+        s4 = temp_0;
+        if (conv_params->do_average) {
+          __builtin_prefetch(d);
+          __builtin_prefetch(d_u8);
+
+          res4 = vld1_u16(d);
+
+          compute_avg_4x1(res4, vreinterpret_u16_s16(d0), fwd_offset,
+                          bck_offset, round_offset_vec, round_bits,
+                          use_jnt_comp_avg, &t0);
+
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0),
+                        0);  // 00 01 02 03
+        } else {
+          vst1_u16(d, vreinterpret_u16_s16(d0));
+        }
+
+        s += 4;
+        width -= 4;
+        d += 4;
+        d_u8 += 4;
+      } while (width > 0);
+      src_ptr += (src_stride);
+      dst_ptr += (dst_stride);
+      dst_u8_ptr += (dst8_stride);
+      height--;
+#endif
+    } while (height > 0);
+  } else {
+    CONV_BUF_TYPE *d_tmp;
+    uint8_t *d_u8_tmp;
+    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+    int16x8_t res0;
+    uint16x8_t res8;
+    const int16x8_t round_offset128 = vdupq_n_s16(round_offset);
+    const int16x4_t round_offset64 = vdup_n_s16(round_offset);
+    const int16x8_t shift_round_0 = vdupq_n_s16(-conv_params->round_0 + 1);
+    const int16x8_t horiz_const = vdupq_n_s16(bits);
+    const int16x8_t zero = vdupq_n_s16(0);
+
+    d = dst_ptr = dst;
+    d_u8 = dst_u8_ptr = dst8;
+    do {
+#if defined(__aarch64__)
+      int16x8_t s11, s12, s13, s14;
+      int16x8_t s8, s9, s10;
+      int16x8_t res1, res2, res3, res4, res5, res6, res7;
+      uint16x8_t res9, res10, res11;
+      __builtin_prefetch(src_ptr + 0 * src_stride);
+      __builtin_prefetch(src_ptr + 1 * src_stride);
+      __builtin_prefetch(src_ptr + 2 * src_stride);
+      __builtin_prefetch(src_ptr + 3 * src_stride);
+      __builtin_prefetch(src_ptr + 4 * src_stride);
+      __builtin_prefetch(src_ptr + 5 * src_stride);
+      __builtin_prefetch(src_ptr + 6 * src_stride);
+      __builtin_prefetch(src_ptr + 7 * src_stride);
+      load_u8_8x8(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+      transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+      s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+      s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+      s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+      s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+      s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+      s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+      width = w;
+      s = src_ptr + 7;
+      d = dst_ptr;
+      d_u8_tmp = dst_u8_ptr;
+
+      __builtin_prefetch(dst_ptr + 0 * dst_stride);
+      __builtin_prefetch(dst_ptr + 1 * dst_stride);
+      __builtin_prefetch(dst_ptr + 2 * dst_stride);
+      __builtin_prefetch(dst_ptr + 3 * dst_stride);
+      __builtin_prefetch(dst_ptr + 4 * dst_stride);
+      __builtin_prefetch(dst_ptr + 5 * dst_stride);
+      __builtin_prefetch(dst_ptr + 6 * dst_stride);
+      __builtin_prefetch(dst_ptr + 7 * dst_stride);
+
+      do {
+        d_u8 = d_u8_tmp;
+        d_tmp = d;
+
+        load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+        transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+        s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+        s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+        s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+        s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+        s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+        s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+        s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+        res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                                 zero, shift_round_0);
+
+        res0 = vrshlq_s16(res0, horiz_const);
+        res0 = vaddq_s16(res0, round_offset128);
+
+        res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp,
+                                 zero, shift_round_0);
+        res1 = vrshlq_s16(res1, horiz_const);
+        res1 = vaddq_s16(res1, round_offset128);
+        res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp,
+                                 zero, shift_round_0);
+        res2 = vrshlq_s16(res2, horiz_const);
+        res2 = vaddq_s16(res2, round_offset128);
+        res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp,
+                                 zero, shift_round_0);
+        res3 = vrshlq_s16(res3, horiz_const);
+        res3 = vaddq_s16(res3, round_offset128);
+        res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, x_filter_tmp,
+                                 zero, shift_round_0);
+        res4 = vrshlq_s16(res4, horiz_const);
+        res4 = vaddq_s16(res4, round_offset128);
+        res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12,
+                                 x_filter_tmp, zero, shift_round_0);
+        res5 = vrshlq_s16(res5, horiz_const);
+        res5 = vaddq_s16(res5, round_offset128);
+        res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13,
+                                 x_filter_tmp, zero, shift_round_0);
+        res6 = vrshlq_s16(res6, horiz_const);
+        res6 = vaddq_s16(res6, round_offset128);
+        res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14,
+                                 x_filter_tmp, zero, shift_round_0);
+        res7 = vrshlq_s16(res7, horiz_const);
+        res7 = vaddq_s16(res7, round_offset128);
+
+        transpose_s16_8x8(&res0, &res1, &res2, &res3, &res4, &res5, &res6,
+                          &res7);
+
+        if (conv_params->do_average) {
+          load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11);
+          d_tmp += (dst_stride << 2);
+
+          compute_avg_8x4(
+              res8, res9, res10, res11, vreinterpretq_u16_s16(res0),
+              vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2),
+              vreinterpretq_u16_s16(res3), fwd_offset, bck_offset,
+              round_offset64, round_bits, use_jnt_comp_avg, &t0, &t1, &t2, &t3);
+
+          store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3);
+          d_u8 += (dst8_stride << 2);
+
+          load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11);
+          d_tmp += (dst_stride << 2);
+
+          compute_avg_8x4(
+              res8, res9, res10, res11, vreinterpretq_u16_s16(res4),
+              vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6),
+              vreinterpretq_u16_s16(res7), fwd_offset, bck_offset,
+              round_offset64, round_bits, use_jnt_comp_avg, &t0, &t1, &t2, &t3);
+
+          store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3);
+          d_u8 += (dst8_stride << 2);
+        } else {
+          store_u16_8x8(
+              d_tmp, dst_stride, vreinterpretq_u16_s16(res0),
+              vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2),
+              vreinterpretq_u16_s16(res3), vreinterpretq_u16_s16(res4),
+              vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6),
+              vreinterpretq_u16_s16(res7));
+          d_tmp += (dst_stride << 3);
+        }
+
+        s0 = s8;
+        s1 = s9;
+        s2 = s10;
+        s3 = s11;
+        s4 = s12;
+        s5 = s13;
+        s6 = s14;
+        s += 8;
+        d += 8;
+        width -= 8;
+        d_u8_tmp += 8;
+      } while (width > 0);
+      src_ptr += 8 * src_stride;
+      dst_ptr += 8 * dst_stride;
+      dst_u8_ptr += 8 * dst8_stride;
+      height -= 8;
+#else
+      int16x8_t temp_0;
+      __builtin_prefetch(src_ptr);
+      t0 = vld1_u8(src_ptr);
+      s0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7
+
+      width = w;
+      s = src_ptr + 8;
+      d = dst_ptr;
+      d_u8_tmp = dst_u8_ptr;
+
+      __builtin_prefetch(dst_ptr);
+
+      do {
+        d_u8 = d_u8_tmp;
+        d_tmp = d;
+
+        t0 = vld1_u8(s);  // a8 a9 a10 a11 a12 a13 a14 a15
+        s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        temp_0 = s0;
+        s0 = s7;
+
+        s1 = vextq_s16(temp_0, s7, 1);  // a1 a2 a3 a4 a5 a6 a7 a8
+        s2 = vextq_s16(temp_0, s7, 2);  // a2 a3 a4 a5 a6 a7 a8 a9
+        s3 = vextq_s16(temp_0, s7, 3);  // a3 a4 a5 a6 a7 a8 a9 a10
+        s4 = vextq_s16(temp_0, s7, 4);  // a4 a5 a6 a7 a8 a9 a10 a11
+        s5 = vextq_s16(temp_0, s7, 5);  // a5 a6 a7 a8 a9 a10 a11 a12
+        s6 = vextq_s16(temp_0, s7, 6);  // a6 a7 a8 a9 a10 a11 a12 a13
+        s7 = vextq_s16(temp_0, s7, 7);  // a7 a8 a9 a10 a11 a12 a13 a14
+
+        res0 = convolve8_8x8_s16(temp_0, s1, s2, s3, s4, s5, s6, s7,
+                                 x_filter_tmp, zero, shift_round_0);
+
+        res0 = vrshlq_s16(res0, horiz_const);
+        res0 = vaddq_s16(res0, round_offset128);
+
+        if (conv_params->do_average) {
+          res8 = vld1q_u16(d_tmp);
+          d_tmp += (dst_stride);
+
+          compute_avg_8x1(res8, vreinterpretq_u16_s16(res0), fwd_offset,
+                          bck_offset, round_offset64, round_bits,
+                          use_jnt_comp_avg, &t0);
+
+          vst1_u8(d_u8, t0);
+          d_u8 += (dst8_stride);
+        } else {
+          vst1q_u16(d_tmp, vreinterpretq_u16_s16(res0));
+          d_tmp += (dst_stride);
+        }
+
+        s += 8;
+        d += 8;
+        width -= 8;
+        d_u8_tmp += 8;
+      } while (width > 0);
+      src_ptr += src_stride;
+      dst_ptr += dst_stride;
+      dst_u8_ptr += dst8_stride;
+      height--;
+#endif
+    } while (height > 0);
+  }
+}
+
+void av1_jnt_convolve_y_neon(const uint8_t *src, int src_stride, uint8_t *dst8,
+                             int dst8_stride, int w, int h,
+                             const InterpFilterParams *filter_params_x,
+                             const InterpFilterParams *filter_params_y,
+                             const int subpel_x_q4, const int subpel_y_q4,
+                             ConvolveParams *conv_params) {
+  assert(!(w % 4));
+  assert(!(h % 4));
+
+  CONV_BUF_TYPE *dst = conv_params->dst;
+  const int dst_stride = conv_params->dst_stride;
+  const int vert_offset = filter_params_y->taps / 2 - 1;
+  const int bits = FILTER_BITS - conv_params->round_0;
+  const int bd = 8;
+  const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+  const int round_offset = (1 << (offset_bits - conv_params->round_1)) +
+                           (1 << (offset_bits - conv_params->round_1 - 1));
+  const int round_bits =
+      2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
+  const uint16_t fwd_offset = conv_params->fwd_offset;
+  const uint16_t bck_offset = conv_params->bck_offset;
+  const int use_jnt_comp_avg = conv_params->use_jnt_comp_avg;
+  const int shift_value = (conv_params->round_1 - 1 - bits);
+
+  (void)filter_params_x;
+  (void)subpel_x_q4;
+
+  // vertical filter
+  const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
+      filter_params_y, subpel_y_q4 & SUBPEL_MASK);
+
+  const uint8_t *src_ptr = src - (vert_offset * src_stride);
+
+  int16_t y_filter_tmp[8];
+  int16x8_t filter_y_coef = vld1q_s16(y_filter);
+
+  // filter coeffs are even, so downshifting by 1 to reduce intermediate
+  // precision requirements.
+  filter_y_coef = vshrq_n_s16(filter_y_coef, 1);
+  vst1q_s16(&y_filter_tmp[0], filter_y_coef);
+
+  const uint8_t *s;
+  uint8_t *d_u8;
+  uint8_t *dst_u8_ptr;
+  CONV_BUF_TYPE *d, *dst_ptr;
+  int width, height;
+
+  s = src_ptr;
+  dst_ptr = dst;
+  dst_u8_ptr = dst8;
+  width = w;
+  height = h;
+
+  // used to get rid of multiplication = (vertical filter output sum) *
+  // (1<<bits).
+  assert((conv_params->round_1 - 2) >= bits);
+
+  if ((w == 4) || (h == 4)) {
+    int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0;
+    uint16x4_t res4;
+    uint32x2_t tu0 = vdup_n_u32(0), tu1 = vdup_n_u32(0), tu2 = vdup_n_u32(0),
+               tu3 = vdup_n_u32(0);
+    int16x8_t u0, u1, u2, u3;
+    uint8x8_t t0;
+
+#if defined(__aarch64__)
+    int16x4_t s8, s9, s10, d1, d2, d3;
+    uint16x4_t res5, res6, res7;
+    uint8x8_t t1;
+#endif
+    const int16x4_t round_offset64 = vdup_n_s16(round_offset);
+    const int16x4_t shift_vec = vdup_n_s16(-shift_value);
+    const int16x4_t zero = vdup_n_s16(0);
+
+    do {
+      s = src_ptr;
+      d = dst_ptr;
+      d_u8 = dst_u8_ptr;
+      height = h;
+      __builtin_prefetch(s + 0 * src_stride);
+      __builtin_prefetch(s + 1 * src_stride);
+      __builtin_prefetch(s + 2 * src_stride);
+      __builtin_prefetch(s + 3 * src_stride);
+
+      load_unaligned_u8_4x8(s, src_stride, &tu0, &tu1, &tu2, &tu3);
+
+      u0 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu0)));
+      u1 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu1)));
+      u2 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu2)));
+      u3 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu3)));
+
+      s0 = vget_low_s16(u0);
+      s1 = vget_high_s16(u0);
+      s2 = vget_low_s16(u1);
+      s3 = vget_high_s16(u1);
+      s4 = vget_low_s16(u2);
+      s5 = vget_high_s16(u2);
+      s6 = vget_low_s16(u3);
+
+      __builtin_prefetch(d + 0 * dst_stride);
+      __builtin_prefetch(d + 1 * dst_stride);
+      __builtin_prefetch(d + 2 * dst_stride);
+      __builtin_prefetch(d + 3 * dst_stride);
+
+      s += (7 * src_stride);
+      do {
+#if defined(__aarch64__)
+        load_unaligned_u8_4x4(s, src_stride, &tu0, &tu1);
+
+        u0 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu0)));
+        u1 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu1)));
+
+        s7 = vget_low_s16(u0);
+        s8 = vget_high_s16(u0);
+        s9 = vget_low_s16(u1);
+        s10 = vget_high_s16(u1);
+
+        d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp,
+                               zero, shift_vec);
+        d0 = vadd_s16(d0, round_offset64);
+        d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, y_filter_tmp,
+                               zero, shift_vec);
+        d1 = vadd_s16(d1, round_offset64);
+        d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, y_filter_tmp,
+                               zero, shift_vec);
+        d2 = vadd_s16(d2, round_offset64);
+        d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, y_filter_tmp,
+                               zero, shift_vec);
+        d3 = vadd_s16(d3, round_offset64);
+
+        if (conv_params->do_average) {
+          __builtin_prefetch(d + 0 * dst_stride);
+          __builtin_prefetch(d + 1 * dst_stride);
+          __builtin_prefetch(d + 2 * dst_stride);
+          __builtin_prefetch(d + 3 * dst_stride);
+
+          __builtin_prefetch(d_u8 + 0 * dst8_stride);
+          __builtin_prefetch(d_u8 + 1 * dst8_stride);
+          __builtin_prefetch(d_u8 + 2 * dst8_stride);
+          __builtin_prefetch(d_u8 + 3 * dst8_stride);
+
+          load_u16_4x4(d, dst_stride, &res4, &res5, &res6, &res7);
+          d += (dst_stride << 2);
+
+          compute_avg_4x4(res4, res5, res6, res7, vreinterpret_u16_s16(d0),
+                          vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2),
+                          vreinterpret_u16_s16(d3), fwd_offset, bck_offset,
+                          round_offset64, round_bits, use_jnt_comp_avg, &t0,
+                          &t1);
+
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0);
+          d_u8 += dst8_stride;
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 1);
+          d_u8 += dst8_stride;
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 0);
+          d_u8 += dst8_stride;
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 1);
+          d_u8 += dst8_stride;
+        } else {
+          store_u16_4x4(d, dst_stride, vreinterpret_u16_s16(d0),
+                        vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2),
+                        vreinterpret_u16_s16(d3));
+          d += (dst_stride << 2);
+        }
+
+        s0 = s4;
+        s1 = s5;
+        s2 = s6;
+        s3 = s7;
+        s4 = s8;
+        s5 = s9;
+        s6 = s10;
+
+        s += (src_stride << 2);
+        height -= 4;
+#else
+        load_unaligned_u8_4x1(s, src_stride, &tu0);
+        u0 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu0)));
+        s7 = vget_low_s16(u0);
+
+        d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp,
+                               zero, shift_vec);
+
+        d0 = vadd_s16(d0, round_offset64);
+
+        if (conv_params->do_average) {
+          __builtin_prefetch(d);
+
+          res4 = vld1_u16(d);
+          d += (dst_stride);
+
+          compute_avg_4x1(res4, vreinterpret_u16_s16(d0), fwd_offset,
+                          bck_offset, round_offset64, round_bits,
+                          use_jnt_comp_avg, &t0);
+
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0);
+          d_u8 += dst8_stride;
+        } else {
+          vst1_u16(d, vreinterpret_u16_s16(d0));
+          d += (dst_stride);
+        }
+
+        s0 = s1;
+        s1 = s2;
+        s2 = s3;
+        s3 = s4;
+        s4 = s5;
+        s5 = s6;
+        s6 = s7;
+
+        s += (src_stride);
+        height--;
+#endif
+      } while (height > 0);
+      src_ptr += 4;
+      dst_ptr += 4;
+      dst_u8_ptr += 4;
+      width -= 4;
+    } while (width > 0);
+  } else {
+    CONV_BUF_TYPE *d_tmp;
+    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+    int16x8_t res0;
+    uint16x8_t res8;
+    uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7;
+    const int16x8_t round_offset128 = vdupq_n_s16(round_offset);
+    const int16x8_t shift_vec = vdupq_n_s16(-shift_value);
+    const int16x4_t round_offset64 = vdup_n_s16(round_offset);
+    const int16x8_t zero = vdupq_n_s16(0);
+#if defined(__aarch64__)
+    int16x8_t s8, s9, s10, s11, s12, s13, s14;
+    int16x8_t res1, res2, res3, res4, res5, res6, res7;
+    uint16x8_t res10, res11, res9;
+#endif
+    dst_ptr = dst;
+    dst_u8_ptr = dst8;
+    do {
+      __builtin_prefetch(src_ptr + 0 * src_stride);
+      __builtin_prefetch(src_ptr + 1 * src_stride);
+      __builtin_prefetch(src_ptr + 2 * src_stride);
+      __builtin_prefetch(src_ptr + 3 * src_stride);
+      __builtin_prefetch(src_ptr + 4 * src_stride);
+      __builtin_prefetch(src_ptr + 5 * src_stride);
+      __builtin_prefetch(src_ptr + 6 * src_stride);
+      __builtin_prefetch(src_ptr + 7 * src_stride);
+      load_u8_8x8(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+      s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+      s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+      s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+      s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+      s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+      s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+      height = h;
+      s = src_ptr + (7 * src_stride);
+      d_tmp = dst_ptr;
+      d_u8 = dst_u8_ptr;
+
+      do {
+#if defined(__aarch64__)
+        load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+        s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+        s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+        s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+        s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+        s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+        s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+        s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+        __builtin_prefetch(dst_ptr + 0 * dst_stride);
+        __builtin_prefetch(dst_ptr + 1 * dst_stride);
+        __builtin_prefetch(dst_ptr + 2 * dst_stride);
+        __builtin_prefetch(dst_ptr + 3 * dst_stride);
+
+        res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp,
+                                 zero, shift_vec);
+        res0 = vaddq_s16(res0, round_offset128);
+        res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, y_filter_tmp,
+                                 zero, shift_vec);
+        res1 = vaddq_s16(res1, round_offset128);
+        res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, y_filter_tmp,
+                                 zero, shift_vec);
+        res2 = vaddq_s16(res2, round_offset128);
+        res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, y_filter_tmp,
+                                 zero, shift_vec);
+        res3 = vaddq_s16(res3, round_offset128);
+        res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, y_filter_tmp,
+                                 zero, shift_vec);
+        res4 = vaddq_s16(res4, round_offset128);
+        res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12,
+                                 y_filter_tmp, zero, shift_vec);
+        res5 = vaddq_s16(res5, round_offset128);
+        res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13,
+                                 y_filter_tmp, zero, shift_vec);
+        res6 = vaddq_s16(res6, round_offset128);
+        res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14,
+                                 y_filter_tmp, zero, shift_vec);
+        res7 = vaddq_s16(res7, round_offset128);
+
+        if (conv_params->do_average) {
+          __builtin_prefetch(d_tmp + 0 * dst8_stride);
+          __builtin_prefetch(d_tmp + 1 * dst8_stride);
+          __builtin_prefetch(d_tmp + 2 * dst8_stride);
+          __builtin_prefetch(d_tmp + 3 * dst8_stride);
+
+          load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11);
+          d_tmp += (dst_stride << 2);
+
+          compute_avg_8x4(
+              res8, res9, res10, res11, vreinterpretq_u16_s16(res0),
+              vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2),
+              vreinterpretq_u16_s16(res3), fwd_offset, bck_offset,
+              round_offset64, round_bits, use_jnt_comp_avg, &t0, &t1, &t2, &t3);
+
+          store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3);
+          d_u8 += (dst8_stride << 2);
+
+          load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11);
+          d_tmp += (dst_stride << 2);
+
+          compute_avg_8x4(
+              res8, res9, res10, res11, vreinterpretq_u16_s16(res4),
+              vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6),
+              vreinterpretq_u16_s16(res7), fwd_offset, bck_offset,
+              round_offset64, round_bits, use_jnt_comp_avg, &t0, &t1, &t2, &t3);
+
+          store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3);
+          d_u8 += (dst8_stride << 2);
+        } else {
+          store_u16_8x8(
+              d_tmp, dst_stride, vreinterpretq_u16_s16(res0),
+              vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2),
+              vreinterpretq_u16_s16(res3), vreinterpretq_u16_s16(res4),
+              vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6),
+              vreinterpretq_u16_s16(res7));
+          d_tmp += (dst_stride << 3);
+        }
+
+        s0 = s8;
+        s1 = s9;
+        s2 = s10;
+        s3 = s11;
+        s4 = s12;
+        s5 = s13;
+        s6 = s14;
+        s += (8 * src_stride);
+        height -= 8;
+#else
+        s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+
+        __builtin_prefetch(dst_ptr);
+
+        res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp,
+                                 zero, shift_vec);
+        res0 = vaddq_s16(res0, round_offset128);
+
+        s0 = s1;
+        s1 = s2;
+        s2 = s3;
+        s3 = s4;
+        s4 = s5;
+        s5 = s6;
+        s6 = s7;
+
+        if (conv_params->do_average) {
+          __builtin_prefetch(d_tmp);
+
+          res8 = vld1q_u16(d_tmp);
+          d_tmp += (dst_stride);
+
+          compute_avg_8x1(res8, vreinterpretq_u16_s16(res0), fwd_offset,
+                          bck_offset, round_offset64, round_bits,
+                          use_jnt_comp_avg, &t0);
+
+          vst1_u8(d_u8, t0);
+          d_u8 += (dst8_stride);
+        } else {
+          vst1q_u16(d_tmp, vreinterpretq_u16_s16(res0));
+          d_tmp += dst_stride;
+        }
+
+        s += (src_stride);
+        height--;
+#endif
+      } while (height > 0);
+      src_ptr += 8;
+      dst_ptr += 8;
+      dst_u8_ptr += 8;
+      width -= 8;
+    } while (width > 0);
+  }
+}