Commit c501b07be3 for aom

commit c501b07be392027178f0a522bcc14836ea8e6f06
Author: Satheesh Kumar <satheesh.kumar@ittiam.com>
Date:   Wed Mar 11 19:54:28 2026 +0530

    Improve av1_convolve_y_sr_general_avx2()

    This patch introduces the following optimizations:
    - Added a specialized width wise handling for 2-tap filtering, with
      separate handling for subpel_y_qn = 8
    - Improved the existing 4/6/8-tap filtering by optimizations based on
      width

    The scaling of av1_convolve_y_sr_avx2() wrt existing implementation is
    provided below:

    BlockSize  2tap   4tap   6tap   8tap
    2x2        1.07   0.95    -      -
    4x4        1.00   0.96    -      -
    8x8        0.91   0.91   0.98   0.94
    16x16      0.96   0.97   0.95   1.03
    32x32      0.98   0.99   1.44   1.67
    64x64      1.00   0.98   1.45   1.71
    128x128    0.98   0.98   1.48   1.71

    Change-Id: Ie2fb8a1a26652d748351a6b3bd6edb5d4513c0bd

diff --git a/aom_dsp/x86/convolve_avx2.h b/aom_dsp/x86/convolve_avx2.h
index 76a6ca0c55..ffafa13319 100644
--- a/aom_dsp/x86/convolve_avx2.h
+++ b/aom_dsp/x86/convolve_avx2.h
@@ -715,7 +715,7 @@ static inline void sr_2d_ver_round_and_store(__m256i res_a, __m256i res_b,

 static inline void prepare_coeffs_2t_ssse3(
     const InterpFilterParams *const filter_params, const int32_t subpel_q4,
-    __m128i *const coeffs /* [2] */) {
+    __m128i *const coeffs /* [4] */) {
   const int16_t *const filter = av1_get_interp_filter_subpel_kernel(
       filter_params, subpel_q4 & SUBPEL_MASK);
   const __m128i coeffs_8 = _mm_loadu_si128((__m128i *)filter);
@@ -736,7 +736,7 @@ static inline void prepare_coeffs_2t_ssse3(

 static inline void prepare_coeffs_4t_ssse3(
     const InterpFilterParams *const filter_params, const int32_t subpel_q4,
-    __m128i *const coeffs /* [2] */) {
+    __m128i *const coeffs /* [4] */) {
   const int16_t *const filter = av1_get_interp_filter_subpel_kernel(
       filter_params, subpel_q4 & SUBPEL_MASK);
   const __m128i coeffs_8 = _mm_loadu_si128((__m128i *)filter);
@@ -757,6 +757,58 @@ static inline void prepare_coeffs_4t_ssse3(
   coeffs[1] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0a08u));
 }

+static inline void prepare_coeffs_6t_ssse3(
+    const InterpFilterParams *const filter_params, const int32_t subpel_q4,
+    __m128i *const coeffs /* [4] */) {
+  const int16_t *const filter = av1_get_interp_filter_subpel_kernel(
+      filter_params, subpel_q4 & SUBPEL_MASK);
+  const __m128i coeffs_8 = _mm_loadu_si128((__m128i *)filter);
+
+  // right shift all filter co-efficients by 1 to reduce the bits required.
+  // This extra right shift will be taken care of at the end while rounding
+  // the result.
+  // Since all filter co-efficients are even, this change will not affect the
+  // end result
+  assert(_mm_test_all_zeros(_mm_and_si128(coeffs_8, _mm_set1_epi16(1)),
+                            _mm_set1_epi16((short)0xffff)));
+
+  const __m128i coeffs_1 = _mm_srai_epi16(coeffs_8, 1);
+
+  // coeffs 2 3 2 3 2 3 2 3
+  coeffs[0] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0402u));
+  // coeffs 4 5 4 5 4 5 4 5
+  coeffs[1] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0806u));
+  // coeffs 5 6 5 6 5 6 5 6
+  coeffs[2] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0c0au));
+}
+
+static inline void prepare_coeffs_ssse3(
+    const InterpFilterParams *const filter_params, const int32_t subpel_q4,
+    __m128i *const coeffs /* [4] */) {
+  const int16_t *const filter = av1_get_interp_filter_subpel_kernel(
+      filter_params, subpel_q4 & SUBPEL_MASK);
+  const __m128i coeffs_8 = _mm_loadu_si128((__m128i *)filter);
+
+  // right shift all filter co-efficients by 1 to reduce the bits required.
+  // This extra right shift will be taken care of at the end while rounding
+  // the result.
+  // Since all filter co-efficients are even, this change will not affect the
+  // end result
+  assert(_mm_test_all_zeros(_mm_and_si128(coeffs_8, _mm_set1_epi16(1)),
+                            _mm_set1_epi16((short)0xffff)));
+
+  const __m128i coeffs_1 = _mm_srai_epi16(coeffs_8, 1);
+
+  // coeffs 0 1 0 1 0 1 0 1
+  coeffs[0] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0200u));
+  // coeffs 2 3 2 3 2 3 2 3
+  coeffs[1] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0604u));
+  // coeffs 4 5 4 5 4 5 4 5
+  coeffs[2] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0a08u));
+  // coeffs 6 7 6 7 6 7 6 7
+  coeffs[3] = _mm_shuffle_epi8(coeffs_1, _mm_set1_epi16(0x0e0cu));
+}
+
 static inline void prepare_coeffs_2t_lowbd(
     const InterpFilterParams *const filter_params, const int subpel_q4,
     __m256i *const coeffs /* [4] */) {
@@ -952,6 +1004,30 @@ static inline __m128i convolve_lowbd_4tap_ssse3(const __m128i ss[2],
   return _mm_add_epi16(res_01, res_23);
 }

+static inline __m128i convolve_lowbd_6tap_ssse3(const __m128i ss[3],
+                                                const __m128i coeffs[3]) {
+  const __m128i res_01 = _mm_maddubs_epi16(ss[0], coeffs[0]);
+  const __m128i res_23 = _mm_maddubs_epi16(ss[1], coeffs[1]);
+  const __m128i res_45 = _mm_maddubs_epi16(ss[2], coeffs[2]);
+
+  const __m128i res = _mm_add_epi16(_mm_add_epi16(res_01, res_45), res_23);
+
+  return res;
+}
+
+static inline __m128i convolve_lowbd_ssse3(const __m128i ss[4],
+                                           const __m128i coeffs[4]) {
+  const __m128i res_01 = _mm_maddubs_epi16(ss[0], coeffs[0]);
+  const __m128i res_23 = _mm_maddubs_epi16(ss[1], coeffs[1]);
+  const __m128i res_45 = _mm_maddubs_epi16(ss[2], coeffs[2]);
+  const __m128i res_67 = _mm_maddubs_epi16(ss[3], coeffs[3]);
+
+  const __m128i res = _mm_add_epi16(_mm_add_epi16(res_01, res_45),
+                                    _mm_add_epi16(res_23, res_67));
+
+  return res;
+}
+
 static inline __m256i convolve_lowbd(const __m256i *const s,
                                      const __m256i *const coeffs) {
   const __m256i res_01 = _mm256_maddubs_epi16(s[0], coeffs[0]);
@@ -1210,17 +1286,17 @@ static inline __m128i round_sr_x_ssse3(const __m128i data) {
   return _mm_srai_epi16(reg, 6);
 }

-static inline void store_x_u8_4x2_sse2(const __m128i reg, uint8_t *const dst,
+static inline void store_8bit_4x2_sse2(const __m128i reg, uint8_t *const dst,
                                        const ptrdiff_t dst_stride) {
   xx_storel_32(dst, reg);
   *(uint32_t *)(dst + dst_stride) =
       ((uint32_t)_mm_extract_epi16(reg, 3) << 16) | _mm_extract_epi16(reg, 2);
 }

-static inline void pack_store_x_4x2_sse2(const __m128i reg, uint8_t *const dst,
-                                         const ptrdiff_t dst_stride) {
+static inline void pack_store_u8_4x2_sse2(const __m128i reg, uint8_t *const dst,
+                                          const ptrdiff_t dst_stride) {
   const __m128i reg_pack = _mm_packus_epi16(reg, reg);
-  store_x_u8_4x2_sse2(reg_pack, dst, dst_stride);
+  store_8bit_4x2_sse2(reg_pack, dst, dst_stride);
 }

 static inline __m128i convolve_x_4tap_2x2_ssse3(const uint8_t *const src,
@@ -1237,8 +1313,8 @@ static inline __m128i convolve_x_4tap_2x2_ssse3(const uint8_t *const src,
   return convolve_lowbd_4tap_ssse3(data, coeffs);
 }

-static inline void pack_store_x_2x2_sse2(const __m128i reg, uint8_t *const dst,
-                                         const ptrdiff_t dst_stride) {
+static inline void pack_store_u8_2x2_sse2(const __m128i reg, uint8_t *const dst,
+                                          const ptrdiff_t dst_stride) {
   const __m128i data = _mm_packus_epi16(reg, reg);
   *(int16_t *)dst = (int16_t)_mm_cvtsi128_si32(data);
   *(int16_t *)(dst + dst_stride) = (int16_t)_mm_extract_epi16(data, 1);
@@ -1319,25 +1395,33 @@ static inline void convolve_x_2tap_16x2_avx2(const uint8_t *const src,
   data[1] = convolve_x_2tap_avx2(&res1, coeffs);
 }

-static inline void storeu_x_8bit_16x2_ssse3(const __m256i src, void *const dst,
-                                            const ptrdiff_t offset) {
+static inline void store_u8_16x2_avx2(const __m256i src, uint8_t *const dst,
+                                      const ptrdiff_t stride) {
   const __m128i reg0 = _mm256_castsi256_si128(src);
   const __m128i reg1 = _mm256_extracti128_si256(src, 1);
   _mm_storeu_si128((__m128i *)dst, reg0);
-  _mm_storeu_si128((__m128i *)((uint8_t *)dst + offset), reg1);
+  _mm_storeu_si128((__m128i *)((uint8_t *)dst + stride), reg1);
 }

-static inline void storeu_x_u8_16x2_ssse3(const __m256i src, uint8_t *const dst,
-                                          const ptrdiff_t stride) {
-  storeu_x_8bit_16x2_ssse3(src, dst, sizeof(*dst) * stride);
+static inline void store_u8_8x2_avx2(const __m256i src, uint8_t *const dst,
+                                     const ptrdiff_t stride) {
+  const __m128i reg0 = _mm256_castsi256_si128(src);
+  const __m128i reg1 = _mm256_extracti128_si256(src, 1);
+  _mm_storel_epi64((__m128i *)dst, reg0);
+  _mm_storel_epi64((__m128i *)(dst + stride), reg1);
 }

-static inline void pack_store_x_16x2_avx2(const __m256i data0,
-                                          const __m256i data1,
-                                          uint8_t *const dst,
-                                          const ptrdiff_t stride) {
+static inline void pack_store_16x2_avx2(const __m256i data0,
+                                        const __m256i data1, uint8_t *const dst,
+                                        const ptrdiff_t stride) {
   const __m256i res = _mm256_packus_epi16(data0, data1);
-  storeu_x_u8_16x2_ssse3(res, dst, stride);
+  store_u8_16x2_avx2(res, dst, stride);
+}
+
+static inline void pack_store_8x2_avx2(const __m256i data, uint8_t *const dst,
+                                       const ptrdiff_t stride) {
+  const __m256i res = _mm256_packus_epi16(data, data);
+  store_u8_8x2_avx2(res, dst, stride);
 }

 static inline void round_pack_store_16x2_avx2(const __m256i *data,
@@ -1347,7 +1431,7 @@ static inline void round_pack_store_16x2_avx2(const __m256i *data,

   reg[0] = round_sr_x_avx2(data[0]);
   reg[1] = round_sr_x_avx2(data[1]);
-  pack_store_x_16x2_avx2(reg[0], reg[1], dst, dst_stride);
+  pack_store_16x2_avx2(reg[0], reg[1], dst, dst_stride);
 }

 static inline void convolve_x_2tap_32_avx2(const uint8_t *const src,
@@ -1362,8 +1446,8 @@ static inline void convolve_x_2tap_32_avx2(const uint8_t *const src,
   data[1] = convolve_x_2tap_avx2(&reg1, coeffs);
 }

-static inline void pack_store_x_avx2(const __m256i data0, const __m256i data1,
-                                     uint8_t *const dst) {
+static inline void pack_store_32_avx2(const __m256i data0, const __m256i data1,
+                                      uint8_t *const dst) {
   const __m256i reg = _mm256_packus_epi16(data0, data1);
   _mm256_storeu_si256((__m256i *)dst, reg);
 }
@@ -1374,7 +1458,7 @@ static inline void round_pack_store_32_avx2(const __m256i *data,

   reg[0] = round_sr_x_avx2(data[0]);
   reg[1] = round_sr_x_avx2(data[1]);
-  pack_store_x_avx2(reg[0], reg[1], dst);
+  pack_store_32_avx2(reg[0], reg[1], dst);
 }

 static inline void convolve_round_2tap_32_avx2(const uint8_t *const src,
@@ -1470,4 +1554,329 @@ static inline void load_convolve_6tap_16x2_avx2(const uint8_t *const src,
   data[1] = load_convolve_6tap_8x2_avx2(src + 8, src_stride, coeffs, filt);
 }

+static inline __m128i round_sr_y_ssse3(const __m128i data) {
+  const __m128i value = _mm_set1_epi16(32);
+  const __m128i reg = _mm_add_epi16(data, value);
+  return _mm_srai_epi16(reg, FILTER_BITS - 1);
+}
+
+static inline __m256i round_sr_y_avx2(const __m256i data) {
+  const __m256i value = _mm256_set1_epi16(32);
+  const __m256i reg = _mm256_add_epi16(data, value);
+  return _mm256_srai_epi16(reg, FILTER_BITS - 1);
+}
+
+static inline void round_pack_store_y_8x2_avx2(const __m256i res,
+                                               uint8_t *const dst,
+                                               const ptrdiff_t dst_stride) {
+  __m256i r;
+
+  r = round_sr_y_avx2(res);
+  pack_store_8x2_avx2(r, dst, dst_stride);
+}
+
+static inline void round_pack_store_y_16x2_avx2(const __m256i res[2],
+                                                uint8_t *const dst,
+                                                const ptrdiff_t dst_stride) {
+  __m256i r[2];
+
+  r[0] = round_sr_y_avx2(res[0]);
+  r[1] = round_sr_y_avx2(res[1]);
+  pack_store_16x2_avx2(r[0], r[1], dst, dst_stride);
+}
+
+static inline void round_pack_store_y_32_avx2(const __m256i res[2],
+                                              uint8_t *const dst) {
+  __m256i r[2];
+
+  r[0] = round_sr_y_avx2(res[0]);
+  r[1] = round_sr_y_avx2(res[1]);
+  pack_store_32_avx2(r[0], r[1], dst);
+}
+
+static inline void round_pack_store_y_32x2_avx2(const __m256i res[4],
+                                                uint8_t *const dst,
+                                                const ptrdiff_t dst_stride) {
+  round_pack_store_y_32_avx2(res, dst);
+  round_pack_store_y_32_avx2(res + 2, dst + dst_stride);
+}
+
+static inline void convolve_y_2tap_2x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i *coeffs,
+                                             __m128i d[2], __m128i *res) {
+  d[1] = _mm_cvtsi32_si128(loadu_int16(data + 1 * stride));
+  const __m128i src_01a = _mm_unpacklo_epi16(d[0], d[1]);
+  d[0] = _mm_cvtsi32_si128(loadu_int16(data + 2 * stride));
+  const __m128i src_12a = _mm_unpacklo_epi16(d[1], d[0]);
+
+  const __m128i s = _mm_unpacklo_epi8(src_01a, src_12a);
+
+  *res = _mm_maddubs_epi16(s, coeffs[0]);
+}
+
+static inline void convolve_y_4tap_2x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i coeffs[2],
+                                             __m128i d[4], __m128i s[2],
+                                             __m128i *res) {
+  d[3] = _mm_cvtsi32_si128(loadu_int16(data + 3 * stride));
+  const __m128i src_23a = _mm_unpacklo_epi16(d[2], d[3]);
+  d[2] = _mm_cvtsi32_si128(loadu_int16(data + 4 * stride));
+  const __m128i src_34a = _mm_unpacklo_epi16(d[3], d[2]);
+
+  s[1] = _mm_unpacklo_epi8(src_23a, src_34a);
+
+  *res = convolve_lowbd_4tap_ssse3(s, coeffs);
+}
+
+static inline void convolve_y_6tap_2x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i coeffs[3],
+                                             __m128i d[6], __m128i s[3],
+                                             __m128i *res) {
+  d[5] = _mm_cvtsi32_si128(loadu_int16(data + 5 * stride));
+  const __m128i src_45a = _mm_unpacklo_epi16(d[4], d[5]);
+  d[4] = _mm_cvtsi32_si128(loadu_int16(data + 6 * stride));
+  const __m128i src_56a = _mm_unpacklo_epi16(d[5], d[4]);
+
+  s[2] = _mm_unpacklo_epi8(src_45a, src_56a);
+
+  *res = convolve_lowbd_6tap_ssse3(s, coeffs);
+}
+
+static inline void convolve_y_8tap_2x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i coeffs[4],
+                                             __m128i d[8], __m128i s[4],
+                                             __m128i *res) {
+  d[7] = _mm_cvtsi32_si128(loadu_int16(data + 7 * stride));
+  const __m128i src_67a = _mm_unpacklo_epi16(d[6], d[7]);
+  d[6] = _mm_cvtsi32_si128(loadu_int16(data + 8 * stride));
+  const __m128i src_78a = _mm_unpacklo_epi16(d[7], d[6]);
+
+  s[3] = _mm_unpacklo_epi8(src_67a, src_78a);
+
+  *res = convolve_lowbd_ssse3(s, coeffs);
+}
+
+static inline void convolve_y_2tap_4x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i *coeffs,
+                                             __m128i d[2], __m128i *res) {
+  d[1] = _mm_cvtsi32_si128(loadu_int32(data + 1 * stride));
+  const __m128i src_01a = _mm_unpacklo_epi32(d[0], d[1]);
+  d[0] = _mm_cvtsi32_si128(loadu_int32(data + 2 * stride));
+  const __m128i src_12a = _mm_unpacklo_epi32(d[1], d[0]);
+
+  const __m128i s = _mm_unpacklo_epi8(src_01a, src_12a);
+
+  *res = _mm_maddubs_epi16(s, coeffs[0]);
+}
+
+static inline void convolve_y_4tap_4x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i coeffs[2],
+                                             __m128i d[4], __m128i s[2],
+                                             __m128i *res) {
+  d[3] = _mm_cvtsi32_si128(loadu_int32(data + 3 * stride));
+  const __m128i src_23a = _mm_unpacklo_epi32(d[2], d[3]);
+  d[2] = _mm_cvtsi32_si128(loadu_int32(data + 4 * stride));
+  const __m128i src_34a = _mm_unpacklo_epi32(d[3], d[2]);
+
+  s[1] = _mm_unpacklo_epi8(src_23a, src_34a);
+
+  *res = convolve_lowbd_4tap_ssse3(s, coeffs);
+}
+
+static inline void convolve_y_6tap_4x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i coeffs[3],
+                                             __m128i d[6], __m128i s[3],
+                                             __m128i *res) {
+  d[5] = _mm_cvtsi32_si128(loadu_int32(data + 5 * stride));
+  const __m128i src_45a = _mm_unpacklo_epi32(d[4], d[5]);
+  d[4] = _mm_cvtsi32_si128(loadu_int32(data + 6 * stride));
+  const __m128i src_56a = _mm_unpacklo_epi32(d[5], d[4]);
+
+  s[2] = _mm_unpacklo_epi8(src_45a, src_56a);
+
+  *res = convolve_lowbd_6tap_ssse3(s, coeffs);
+}
+
+static inline void convolve_y_8tap_4x2_ssse3(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m128i coeffs[4],
+                                             __m128i d[8], __m128i s[4],
+                                             __m128i *res) {
+  d[7] = _mm_cvtsi32_si128(loadu_int32(data + 7 * stride));
+  const __m128i src_67a = _mm_unpacklo_epi32(d[6], d[7]);
+  d[6] = _mm_cvtsi32_si128(loadu_int32(data + 8 * stride));
+  const __m128i src_78a = _mm_unpacklo_epi32(d[7], d[6]);
+
+  s[3] = _mm_unpacklo_epi8(src_67a, src_78a);
+
+  res[0] = convolve_lowbd_ssse3(s, coeffs);
+}
+
+static inline void convolve_y_2tap_8x2_avx2(const uint8_t *const data,
+                                            const ptrdiff_t stride,
+                                            const __m256i *coeffs, __m128i d[2],
+                                            __m256i *res) {
+  d[1] = _mm_loadu_si128((__m128i *)(data + 1 * stride));
+  const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+  d[0] = _mm_loadu_si128((__m128i *)(data + 2 * stride));
+  const __m256i src_12a = _mm256_setr_m128i(d[1], d[0]);
+
+  const __m256i s = _mm256_unpacklo_epi8(src_01a, src_12a);
+
+  *res = _mm256_maddubs_epi16(s, coeffs[0]);
+}
+
+static inline void convolve_y_4tap_8x2_avx2(const uint8_t *const data,
+                                            const ptrdiff_t stride,
+                                            const __m256i coeffs[2],
+                                            __m128i d[4], __m256i s[2],
+                                            __m256i *res) {
+  d[3] = _mm_loadu_si128((__m128i *)(data + 3 * stride));
+  const __m256i src_23a = _mm256_setr_m128i(d[2], d[3]);
+  d[2] = _mm_loadu_si128((__m128i *)(data + 4 * stride));
+  const __m256i src_34a = _mm256_setr_m128i(d[3], d[2]);
+
+  s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+
+  *res = convolve_lowbd_4tap(s, coeffs);
+}
+
+static inline void convolve_y_6tap_8x2_avx2(const uint8_t *const data,
+                                            const ptrdiff_t stride,
+                                            const __m256i coeffs[3],
+                                            __m128i d[6], __m256i s[3],
+                                            __m256i *res) {
+  d[5] = _mm_loadu_si128((__m128i *)(data + 5 * stride));
+  const __m256i src_45a = _mm256_setr_m128i(d[4], d[5]);
+  d[4] = _mm_loadu_si128((__m128i *)(data + 6 * stride));
+  const __m256i src_56a = _mm256_setr_m128i(d[5], d[4]);
+
+  s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
+
+  *res = convolve_lowbd_6tap(s, coeffs);
+}
+
+static inline void convolve_y_8tap_8x2_avx2(const uint8_t *const data,
+                                            const ptrdiff_t stride,
+                                            const __m256i coeffs[4],
+                                            __m128i d[8], __m256i s[4],
+                                            __m256i *res) {
+  d[7] = _mm_loadu_si128((__m128i *)(data + 7 * stride));
+  const __m256i src_67a = _mm256_setr_m128i(d[6], d[7]);
+  d[6] = _mm_loadu_si128((__m128i *)(data + 8 * stride));
+  const __m256i src_78a = _mm256_setr_m128i(d[7], d[6]);
+
+  s[3] = _mm256_unpacklo_epi8(src_67a, src_78a);
+
+  *res = convolve_lowbd(s, coeffs);
+}
+
+static inline void convolve_y_2tap_16x2_avx2(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m256i *coeffs,
+                                             __m128i d[2], __m256i res[2]) {
+  d[1] = _mm_loadu_si128((__m128i *)(data + 1 * stride));
+  const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+  d[0] = _mm_loadu_si128((__m128i *)(data + 2 * stride));
+  const __m256i src_12a = _mm256_setr_m128i(d[1], d[0]);
+
+  const __m256i s0 = _mm256_unpacklo_epi8(src_01a, src_12a);
+  const __m256i s1 = _mm256_unpackhi_epi8(src_01a, src_12a);
+
+  res[0] = _mm256_maddubs_epi16(s0, coeffs[0]);
+  res[1] = _mm256_maddubs_epi16(s1, coeffs[0]);
+}
+
+static inline void convolve_y_4tap_16x2_avx2(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m256i coeffs[2],
+                                             __m128i d[4], __m256i s[4],
+                                             __m256i res[2]) {
+  d[3] = _mm_loadu_si128((__m128i *)(data + 3 * stride));
+  const __m256i src_23a = _mm256_setr_m128i(d[2], d[3]);
+  d[2] = _mm_loadu_si128((__m128i *)(data + 4 * stride));
+  const __m256i src_34a = _mm256_setr_m128i(d[3], d[2]);
+
+  s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+  s[3] = _mm256_unpackhi_epi8(src_23a, src_34a);
+
+  res[0] = convolve_lowbd_4tap(s, coeffs);
+  res[1] = convolve_lowbd_4tap(s + 2, coeffs);
+}
+
+static inline void convolve_y_6tap_16x2_avx2(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m256i coeffs[3],
+                                             __m128i d[6], __m256i s[6],
+                                             __m256i res[2]) {
+  d[5] = _mm_loadu_si128((__m128i *)(data + 5 * stride));
+  const __m256i src_45a = _mm256_setr_m128i(d[4], d[5]);
+  d[4] = _mm_loadu_si128((__m128i *)(data + 6 * stride));
+  const __m256i src_56a = _mm256_setr_m128i(d[5], d[4]);
+
+  s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
+  s[5] = _mm256_unpackhi_epi8(src_45a, src_56a);
+
+  res[0] = convolve_lowbd_6tap(s, coeffs);
+  res[1] = convolve_lowbd_6tap(s + 3, coeffs);
+}
+
+static inline void convolve_y_8tap_16x2_avx2(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m256i coeffs[4],
+                                             __m128i d[8], __m256i s[8],
+                                             __m256i res[2]) {
+  d[7] = _mm_loadu_si128((__m128i *)(data + 7 * stride));
+  const __m256i src_67a = _mm256_setr_m128i(d[6], d[7]);
+  d[6] = _mm_loadu_si128((__m128i *)(data + 8 * stride));
+  const __m256i src_78a = _mm256_setr_m128i(d[7], d[6]);
+
+  s[3] = _mm256_unpacklo_epi8(src_67a, src_78a);
+  s[7] = _mm256_unpackhi_epi8(src_67a, src_78a);
+
+  res[0] = convolve_lowbd(s, coeffs);
+  res[1] = convolve_lowbd(s + 4, coeffs);
+}
+
+static inline void convolve_y_2tap_32x2_avx2(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m256i *coeffs,
+                                             __m256i d[2], __m256i res[4]) {
+  d[1] = _mm256_loadu_si256((__m256i *)(data + 1 * stride));
+  const __m256i s00 = _mm256_unpacklo_epi8(d[0], d[1]);
+  const __m256i s01 = _mm256_unpackhi_epi8(d[0], d[1]);
+  d[0] = _mm256_loadu_si256((__m256i *)(data + 2 * stride));
+  const __m256i s10 = _mm256_unpacklo_epi8(d[1], d[0]);
+  const __m256i s11 = _mm256_unpackhi_epi8(d[1], d[0]);
+
+  res[0] = _mm256_maddubs_epi16(s00, coeffs[0]);
+  res[1] = _mm256_maddubs_epi16(s01, coeffs[0]);
+  res[2] = _mm256_maddubs_epi16(s10, coeffs[0]);
+  res[3] = _mm256_maddubs_epi16(s11, coeffs[0]);
+}
+
+static inline void convolve_y_4tap_32x2_avx2(const uint8_t *const data,
+                                             const ptrdiff_t stride,
+                                             const __m256i coeffs[2],
+                                             __m256i d[4], __m256i s1[4],
+                                             __m256i s2[4], __m256i res[4]) {
+  d[3] = _mm256_loadu_si256((__m256i *)(data + 3 * stride));
+  s1[1] = _mm256_unpacklo_epi8(d[2], d[3]);
+  s1[3] = _mm256_unpackhi_epi8(d[2], d[3]);
+  d[2] = _mm256_loadu_si256((__m256i *)(data + 4 * stride));
+  s2[1] = _mm256_unpacklo_epi8(d[3], d[2]);
+  s2[3] = _mm256_unpackhi_epi8(d[3], d[2]);
+
+  res[0] = convolve_lowbd_4tap(s1, coeffs);
+  res[1] = convolve_lowbd_4tap(s1 + 2, coeffs);
+  res[2] = convolve_lowbd_4tap(s2, coeffs);
+  res[3] = convolve_lowbd_4tap(s2 + 2, coeffs);
+}
 #endif  // AOM_AOM_DSP_X86_CONVOLVE_AVX2_H_
diff --git a/av1/common/x86/convolve_avx2.c b/av1/common/x86/convolve_avx2.c
index 005d666395..209dee75e5 100644
--- a/av1/common/x86/convolve_avx2.c
+++ b/av1/common/x86/convolve_avx2.c
@@ -13,10 +13,6 @@

 #include "config/av1_rtcd.h"

-#if CONFIG_SVT_AV1
-#include "third_party/SVT-AV1/convolve_avx2.h"
-#endif
-
 #include "aom_dsp/aom_dsp_common.h"
 #include "aom_dsp/x86/convolve_avx2.h"
 #include "aom_dsp/x86/convolve_common_intrin.h"
@@ -25,231 +21,502 @@
 static inline void av1_convolve_y_sr_general_avx2(
     const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int w,
     int h, const InterpFilterParams *filter_params_y, const int subpel_y_qn) {
-  // right shift is F-1 because we are already dividing
-  // filter co-efficients by 2
-  const int right_shift_bits = (FILTER_BITS - 1);
-  __m128i right_shift = _mm_cvtsi32_si128(right_shift_bits);
-  __m256i right_shift_const = _mm256_set1_epi16((1 << right_shift_bits) >> 1);
-
-  __m256i coeffs[6], s[12];
-  __m128i d[10];
+  __m128i coeffs_128[4];
+  __m256i coeffs[6];
+  int x = 0, y = h;

   int i, vert_tap = get_filter_tap(filter_params_y, subpel_y_qn);
+  assert(vert_tap == 2 || vert_tap == 4 || vert_tap == 6 || vert_tap == 8 ||
+         vert_tap == 12);
+  assert(!(w % 2));
+  assert(!(h % 2));
+
+  const int fo_vert = vert_tap / 2 - 1;
+  const uint8_t *const src_ptr = src - fo_vert * src_stride;
+  const uint8_t *data = src_ptr;
+  uint8_t *dst_ptr = dst;
+
+  if (vert_tap == 2) {
+    if (subpel_y_qn != 8) {
+      if (w <= 4) {
+        prepare_coeffs_2t_ssse3(filter_params_y, subpel_y_qn, coeffs_128);
+        __m128i d[2], res;
+        if (w == 2) {
+          d[0] = _mm_cvtsi32_si128(loadu_int16(data));

-  if (vert_tap == 6)
-    prepare_coeffs_6t_lowbd(filter_params_y, subpel_y_qn, coeffs);
-  else if (vert_tap == 12) {
-    prepare_coeffs_12taps(filter_params_y, subpel_y_qn, coeffs);
-  } else {
-    prepare_coeffs_lowbd(filter_params_y, subpel_y_qn, coeffs);
-  }
+          do {
+            convolve_y_2tap_2x2_ssse3(data, src_stride, coeffs_128, d, &res);
+            res = round_sr_y_ssse3(res);
+            pack_store_u8_2x2_sse2(res, dst_ptr, dst_stride);
+
+            dst_ptr += 2 * dst_stride;
+            data += 2 * src_stride;
+            y -= 2;
+          } while (y > 0);
+        } else {
+          assert(w == 4);
+          d[0] = _mm_cvtsi32_si128(loadu_int32(data));

-  // vert_filt as 4 tap
-  if (vert_tap == 4) {
-    const int fo_vert = 1;
-    const uint8_t *const src_ptr = src - fo_vert * src_stride;
-    for (int j = 0; j < w; j += 16) {
-      const uint8_t *data = &src_ptr[j];
-      d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
-      d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
-      d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
-      d[3] = _mm_loadu_si128((__m128i *)(data + 3 * src_stride));
-      d[4] = _mm_loadu_si128((__m128i *)(data + 4 * src_stride));
+          do {
+            convolve_y_2tap_4x2_ssse3(data, src_stride, coeffs_128, d, &res);
+            res = round_sr_y_ssse3(res);
+            pack_store_u8_4x2_sse2(res, dst_ptr, dst_stride);
+
+            dst_ptr += 2 * dst_stride;
+            data += 2 * src_stride;
+            y -= 2;
+          } while (y > 0);
+        }
+      } else {
+        prepare_coeffs_2t_lowbd(filter_params_y, subpel_y_qn, coeffs);

-      // Load lines a and b. Line a to lower 128, line b to upper 128
-      const __m256i src_01a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[0]), _mm256_castsi128_si256(d[1]), 0x20);
+        if (w == 8) {
+          __m128i d[2];
+          d[0] = _mm_loadl_epi64((__m128i *)data);

-      const __m256i src_12a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[1]), _mm256_castsi128_si256(d[2]), 0x20);
+          do {
+            __m256i res;
+            convolve_y_2tap_8x2_avx2(data, src_stride, coeffs, d, &res);
+            round_pack_store_y_8x2_avx2(res, dst_ptr, dst_stride);

-      const __m256i src_23a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[2]), _mm256_castsi128_si256(d[3]), 0x20);
+            dst_ptr += 2 * dst_stride;
+            data += 2 * src_stride;
+            y -= 2;

-      const __m256i src_34a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[3]), _mm256_castsi128_si256(d[4]), 0x20);
+          } while (y > 0);

-      s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
-      s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+        } else if (w == 16) {
+          __m128i d[2];
+          d[0] = _mm_loadu_si128((__m128i *)data);

-      s[3] = _mm256_unpackhi_epi8(src_01a, src_12a);
-      s[4] = _mm256_unpackhi_epi8(src_23a, src_34a);
+          do {
+            __m256i res[2];
+            convolve_y_2tap_16x2_avx2(data, src_stride, coeffs, d, res);
+            round_pack_store_y_16x2_avx2(res, dst_ptr, dst_stride);

-      for (i = 0; i < h; i += 2) {
-        data = &src_ptr[i * src_stride + j];
-        d[5] = _mm_loadu_si128((__m128i *)(data + 5 * src_stride));
-        const __m256i src_45a = _mm256_permute2x128_si256(
-            _mm256_castsi128_si256(d[4]), _mm256_castsi128_si256(d[5]), 0x20);
+            dst_ptr += 2 * dst_stride;
+            data += 2 * src_stride;
+            y -= 2;
+          } while (y > 0);

-        d[4] = _mm_loadu_si128((__m128i *)(data + 6 * src_stride));
-        const __m256i src_56a = _mm256_permute2x128_si256(
-            _mm256_castsi128_si256(d[5]), _mm256_castsi128_si256(d[4]), 0x20);
+        } else {
+          assert(!(w % 32));

-        s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
-        s[5] = _mm256_unpackhi_epi8(src_45a, src_56a);
+          __m256i d[2];
+          do {
+            data = src_ptr + x;
+            dst_ptr = dst + x;
+            y = h;

-        const __m256i res_lo = convolve_lowbd_4tap(s, coeffs + 1);
-        /* rounding code */
-        // shift by F - 1
-        const __m256i res_16b_lo = _mm256_sra_epi16(
-            _mm256_add_epi16(res_lo, right_shift_const), right_shift);
-        // 8 bit conversion and saturation to uint8
-        __m256i res_8b_lo = _mm256_packus_epi16(res_16b_lo, res_16b_lo);
+            d[0] = _mm256_loadu_si256((__m256i *)data);

-        if (w - j > 8) {
-          const __m256i res_hi = convolve_lowbd_4tap(s + 3, coeffs + 1);
+            do {
+              __m256i res[4];
+              convolve_y_2tap_32x2_avx2(data, src_stride, coeffs, d, res);
+              round_pack_store_y_32x2_avx2(res, dst_ptr, dst_stride);

-          /* rounding code */
-          // shift by F - 1
-          const __m256i res_16b_hi = _mm256_sra_epi16(
-              _mm256_add_epi16(res_hi, right_shift_const), right_shift);
-          // 8 bit conversion and saturation to uint8
-          __m256i res_8b_hi = _mm256_packus_epi16(res_16b_hi, res_16b_hi);
+              dst_ptr += 2 * dst_stride;
+              data += 2 * src_stride;
+              y -= 2;
+            } while (y > 0);

-          __m256i res_a = _mm256_unpacklo_epi64(res_8b_lo, res_8b_hi);
+            x += 32;
+          } while (x < w);
+        }
+      }
+    } else {
+      if (w <= 16) {
+        __m128i s[2], res;

-          const __m128i res_0 = _mm256_castsi256_si128(res_a);
-          const __m128i res_1 = _mm256_extracti128_si256(res_a, 1);
+        if (w == 2) {
+          s[0] = _mm_cvtsi32_si128(*(int16_t *)data);

-          _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res_0);
-          _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
-                           res_1);
+          do {
+            s[1] = _mm_cvtsi32_si128(*(int16_t *)(data + src_stride));
+            res = _mm_avg_epu8(s[0], s[1]);
+            *(int16_t *)dst_ptr = (int16_t)_mm_cvtsi128_si32(res);
+            s[0] = _mm_cvtsi32_si128(*(int16_t *)(data + 2 * src_stride));
+            res = _mm_avg_epu8(s[1], s[0]);
+            *(int16_t *)(dst_ptr + dst_stride) =
+                (int16_t)_mm_cvtsi128_si32(res);
+
+            data += 2 * src_stride;
+            dst_ptr += 2 * dst_stride;
+            y -= 2;
+          } while (y > 0);
+        } else if (w == 4) {
+          s[0] = _mm_cvtsi32_si128(loadu_int32(data));
+
+          do {
+            s[1] = _mm_cvtsi32_si128(loadu_int32(data + src_stride));
+            res = _mm_avg_epu8(s[0], s[1]);
+            xx_storel_32(dst_ptr, res);
+            s[0] = _mm_cvtsi32_si128(loadu_int32(data + 2 * src_stride));
+            res = _mm_avg_epu8(s[1], s[0]);
+            xx_storel_32(dst_ptr + dst_stride, res);
+
+            data += 2 * src_stride;
+            dst_ptr += 2 * dst_stride;
+            y -= 2;
+          } while (y > 0);
+        } else if (w == 8) {
+          s[0] = _mm_loadl_epi64((__m128i *)data);
+
+          do {
+            s[1] = _mm_loadl_epi64((__m128i *)(data + src_stride));
+            res = _mm_avg_epu8(s[0], s[1]);
+            _mm_storel_epi64((__m128i *)dst_ptr, res);
+            s[0] = _mm_loadl_epi64((__m128i *)(data + 2 * src_stride));
+            res = _mm_avg_epu8(s[1], s[0]);
+            _mm_storel_epi64((__m128i *)(dst_ptr + dst_stride), res);
+
+            data += 2 * src_stride;
+            dst_ptr += 2 * dst_stride;
+            y -= 2;
+          } while (y > 0);
         } else {
-          const __m128i res_0 = _mm256_castsi256_si128(res_8b_lo);
-          const __m128i res_1 = _mm256_extracti128_si256(res_8b_lo, 1);
-          if (w - j > 4) {
-            _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j], res_0);
-            _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
-                             res_1);
-          } else if (w - j > 2) {
-            xx_storel_32(&dst[i * dst_stride + j], res_0);
-            xx_storel_32(&dst[i * dst_stride + j + dst_stride], res_1);
-          } else {
-            __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j];
-            __m128i *const p_1 =
-                (__m128i *)&dst[i * dst_stride + j + dst_stride];
-            *(uint16_t *)p_0 = (uint16_t)_mm_cvtsi128_si32(res_0);
-            *(uint16_t *)p_1 = (uint16_t)_mm_cvtsi128_si32(res_1);
-          }
+          assert(w == 16);
+
+          s[0] = _mm_loadu_si128((__m128i *)data);
+
+          do {
+            s[1] = _mm_loadu_si128((__m128i *)(data + src_stride));
+            res = _mm_avg_epu8(s[0], s[1]);
+            _mm_storeu_si128((__m128i *)dst_ptr, res);
+            s[0] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
+            res = _mm_avg_epu8(s[1], s[0]);
+            _mm_storeu_si128((__m128i *)(dst_ptr + dst_stride), res);
+
+            data += 2 * src_stride;
+            dst_ptr += 2 * dst_stride;
+            y -= 2;
+          } while (y > 0);
         }
-        s[0] = s[1];
-        s[1] = s[2];
+      } else {
+        assert(!(w % 32));

-        s[3] = s[4];
-        s[4] = s[5];
+        __m256i s[2], res;
+        do {
+          data = src_ptr + x;
+          dst_ptr = dst + x;
+          y = h;
+
+          s[0] = _mm256_loadu_si256((__m256i *)data);
+
+          do {
+            s[1] = _mm256_loadu_si256((__m256i *)(data + src_stride));
+            res = _mm256_avg_epu8(s[0], s[1]);
+            _mm256_storeu_si256((__m256i *)dst_ptr, res);
+            s[0] = _mm256_loadu_si256((__m256i *)(data + 2 * src_stride));
+            res = _mm256_avg_epu8(s[1], s[0]);
+            _mm256_storeu_si256((__m256i *)(dst_ptr + dst_stride), res);
+
+            data += 2 * src_stride;
+            dst_ptr += 2 * dst_stride;
+            y -= 2;
+          } while (y > 0);
+
+          x += 32;
+        } while (x < w);
+      }
+    }
+  } else if (vert_tap == 4) {
+    if (w <= 4) {
+      prepare_coeffs_4t_ssse3(filter_params_y, subpel_y_qn, coeffs_128);
+      __m128i d[4], s[2];
+
+      if (w == 2) {
+        d[0] = _mm_cvtsi32_si128(loadu_int16(data + 0 * src_stride));
+        d[1] = _mm_cvtsi32_si128(loadu_int16(data + 1 * src_stride));
+        d[2] = _mm_cvtsi32_si128(loadu_int16(data + 2 * src_stride));
+
+        const __m128i src_01a = _mm_unpacklo_epi16(d[0], d[1]);
+        const __m128i src_12a = _mm_unpacklo_epi16(d[1], d[2]);
+
+        s[0] = _mm_unpacklo_epi8(src_01a, src_12a);
+        do {
+          __m128i res;
+          convolve_y_4tap_2x2_ssse3(data, src_stride, coeffs_128, d, s, &res);
+          res = round_sr_y_ssse3(res);
+          pack_store_u8_2x2_sse2(res, dst_ptr, dst_stride);
+
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;
+
+          s[0] = s[1];
+        } while (y > 0);
+
+      } else {
+        assert(w == 4);
+
+        d[0] = _mm_cvtsi32_si128(loadu_int32(data + 0 * src_stride));
+        d[1] = _mm_cvtsi32_si128(loadu_int32(data + 1 * src_stride));
+        d[2] = _mm_cvtsi32_si128(loadu_int32(data + 2 * src_stride));
+
+        const __m128i src_01a = _mm_unpacklo_epi32(d[0], d[1]);
+        const __m128i src_12a = _mm_unpacklo_epi32(d[1], d[2]);
+
+        s[0] = _mm_unpacklo_epi8(src_01a, src_12a);
+        do {
+          __m128i res;
+          convolve_y_4tap_4x2_ssse3(data, src_stride, coeffs_128, d, s, &res);
+          res = round_sr_y_ssse3(res);
+          pack_store_u8_4x2_sse2(res, dst_ptr, dst_stride);
+
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;
+
+          s[0] = s[1];
+        } while (y > 0);
+      }
+    } else {
+      prepare_coeffs_4t_lowbd(filter_params_y, subpel_y_qn, coeffs);
+
+      if (w == 8) {
+        __m128i d[4];
+        __m256i s[2];
+
+        d[0] = _mm_loadl_epi64((__m128i *)(data + 0 * src_stride));
+        d[1] = _mm_loadl_epi64((__m128i *)(data + 1 * src_stride));
+        d[2] = _mm_loadl_epi64((__m128i *)(data + 2 * src_stride));
+
+        const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+        const __m256i src_12a = _mm256_setr_m128i(d[1], d[2]);
+
+        s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+        do {
+          __m256i res;
+          convolve_y_4tap_8x2_avx2(data, src_stride, coeffs, d, s, &res);
+          round_pack_store_y_8x2_avx2(res, dst_ptr, dst_stride);
+
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;
+
+          s[0] = s[1];
+        } while (y > 0);
+      } else if (w == 16) {
+        __m128i d[4];
+        __m256i s[4];
+
+        d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
+        d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
+        d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
+
+        const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+        const __m256i src_12a = _mm256_setr_m128i(d[1], d[2]);
+
+        s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+        s[2] = _mm256_unpackhi_epi8(src_01a, src_12a);
+
+        do {
+          __m256i res[2];
+          convolve_y_4tap_16x2_avx2(data, src_stride, coeffs, d, s, res);
+          round_pack_store_y_16x2_avx2(res, dst_ptr, dst_stride);
+
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;
+
+          s[0] = s[1];
+          s[2] = s[3];
+        } while (y > 0);
+      } else {
+        assert(!(w % 32));
+
+        __m256i d[4], s1[4], s2[4];
+        do {
+          data = src_ptr + x;
+          dst_ptr = dst + x;
+          y = h;
+
+          d[0] = _mm256_loadu_si256((__m256i *)(data + 0 * src_stride));
+          d[1] = _mm256_loadu_si256((__m256i *)(data + 1 * src_stride));
+          d[2] = _mm256_loadu_si256((__m256i *)(data + 2 * src_stride));
+
+          s1[0] = _mm256_unpacklo_epi8(d[0], d[1]);
+          s1[2] = _mm256_unpackhi_epi8(d[0], d[1]);
+
+          s2[0] = _mm256_unpacklo_epi8(d[1], d[2]);
+          s2[2] = _mm256_unpackhi_epi8(d[1], d[2]);
+
+          do {
+            __m256i res[4];
+            convolve_y_4tap_32x2_avx2(data, src_stride, coeffs, d, s1, s2, res);
+            round_pack_store_y_32x2_avx2(res, dst_ptr, dst_stride);
+
+            dst_ptr += 2 * dst_stride;
+            data += 2 * src_stride;
+            y -= 2;
+
+            s1[0] = s1[1];
+            s1[2] = s1[3];
+
+            s2[0] = s2[1];
+            s2[2] = s2[3];
+          } while (y > 0);
+
+          x += 32;
+        } while (x < w);
       }
     }
   } else if (vert_tap == 6) {
-    const int fo_vert = vert_tap / 2 - 1;
-    const uint8_t *const src_ptr = src - fo_vert * src_stride;
+    if (w <= 4) {
+      prepare_coeffs_6t_ssse3(filter_params_y, subpel_y_qn, coeffs_128);

-    for (int j = 0; j < w; j += 16) {
-      const uint8_t *data = &src_ptr[j];
-      __m256i src6;
+      __m128i d[6], s[3];
+      if (w == 2) {
+        d[0] = _mm_cvtsi32_si128(loadu_int16(data + 0 * src_stride));
+        d[1] = _mm_cvtsi32_si128(loadu_int16(data + 1 * src_stride));
+        d[2] = _mm_cvtsi32_si128(loadu_int16(data + 2 * src_stride));
+        d[3] = _mm_cvtsi32_si128(loadu_int16(data + 3 * src_stride));
+        d[4] = _mm_cvtsi32_si128(loadu_int16(data + 4 * src_stride));

-      d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
-      d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
-      d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
-      d[3] = _mm_loadu_si128((__m128i *)(data + 3 * src_stride));
-      // Load lines a and b. Line a to lower 128, line b to upper 128
-      const __m256i src_01a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[0]), _mm256_castsi128_si256(d[1]), 0x20);
+        const __m128i src_01a = _mm_unpacklo_epi16(d[0], d[1]);
+        const __m128i src_12a = _mm_unpacklo_epi16(d[1], d[2]);
+        const __m128i src_23a = _mm_unpacklo_epi16(d[2], d[3]);
+        const __m128i src_34a = _mm_unpacklo_epi16(d[3], d[4]);

-      const __m256i src_12a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[1]), _mm256_castsi128_si256(d[2]), 0x20);
+        s[0] = _mm_unpacklo_epi8(src_01a, src_12a);
+        s[1] = _mm_unpacklo_epi8(src_23a, src_34a);

-      const __m256i src_23a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[2]), _mm256_castsi128_si256(d[3]), 0x20);
+        do {
+          __m128i res;
+          convolve_y_6tap_2x2_ssse3(data, src_stride, coeffs_128, d, s, &res);
+          res = round_sr_y_ssse3(res);
+          pack_store_u8_2x2_sse2(res, dst_ptr, dst_stride);

-      src6 = _mm256_castsi128_si256(
-          _mm_loadu_si128((__m128i *)(data + 4 * src_stride)));
-      const __m256i src_34a =
-          _mm256_permute2x128_si256(_mm256_castsi128_si256(d[3]), src6, 0x20);
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;

-      s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
-      s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+          s[0] = s[1];
+          s[1] = s[2];
+        } while (y > 0);

-      s[3] = _mm256_unpackhi_epi8(src_01a, src_12a);
-      s[4] = _mm256_unpackhi_epi8(src_23a, src_34a);
+      } else {
+        assert(w == 4);
+        d[0] = _mm_cvtsi32_si128(loadu_int32(data + 0 * src_stride));
+        d[1] = _mm_cvtsi32_si128(loadu_int32(data + 1 * src_stride));
+        d[2] = _mm_cvtsi32_si128(loadu_int32(data + 2 * src_stride));
+        d[3] = _mm_cvtsi32_si128(loadu_int32(data + 3 * src_stride));
+        d[4] = _mm_cvtsi32_si128(loadu_int32(data + 4 * src_stride));

-      for (i = 0; i < h; i += 2) {
-        data = &src_ptr[i * src_stride + j];
-        const __m256i src_45a = _mm256_permute2x128_si256(
-            src6,
-            _mm256_castsi128_si256(
-                _mm_loadu_si128((__m128i *)(data + 5 * src_stride))),
-            0x20);
+        const __m128i src_01a = _mm_unpacklo_epi32(d[0], d[1]);
+        const __m128i src_12a = _mm_unpacklo_epi32(d[1], d[2]);
+        const __m128i src_23a = _mm_unpacklo_epi32(d[2], d[3]);
+        const __m128i src_34a = _mm_unpacklo_epi32(d[3], d[4]);

-        src6 = _mm256_castsi128_si256(
-            _mm_loadu_si128((__m128i *)(data + 6 * src_stride)));
-        const __m256i src_56a = _mm256_permute2x128_si256(
-            _mm256_castsi128_si256(
-                _mm_loadu_si128((__m128i *)(data + 5 * src_stride))),
-            src6, 0x20);
+        s[0] = _mm_unpacklo_epi8(src_01a, src_12a);
+        s[1] = _mm_unpacklo_epi8(src_23a, src_34a);

-        s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
-        s[5] = _mm256_unpackhi_epi8(src_45a, src_56a);
+        do {
+          __m128i res;
+          convolve_y_6tap_4x2_ssse3(data, src_stride, coeffs_128, d, s, &res);
+          res = round_sr_y_ssse3(res);
+          pack_store_u8_4x2_sse2(res, dst_ptr, dst_stride);
+
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;
+
+          s[0] = s[1];
+          s[1] = s[2];
+        } while (y > 0);
+      }
+    } else {
+      prepare_coeffs_6t_lowbd(filter_params_y, subpel_y_qn, coeffs);

-        const __m256i res_lo = convolve_lowbd_6tap(s, coeffs);
+      if (w == 8) {
+        __m128i d[6];
+        __m256i s[3];

-        /* rounding code */
-        // shift by F - 1
-        const __m256i res_16b_lo = _mm256_sra_epi16(
-            _mm256_add_epi16(res_lo, right_shift_const), right_shift);
-        // 8 bit conversion and saturation to uint8
-        __m256i res_8b_lo = _mm256_packus_epi16(res_16b_lo, res_16b_lo);
+        d[0] = _mm_loadl_epi64((__m128i *)(data + 0 * src_stride));
+        d[1] = _mm_loadl_epi64((__m128i *)(data + 1 * src_stride));
+        d[2] = _mm_loadl_epi64((__m128i *)(data + 2 * src_stride));
+        d[3] = _mm_loadl_epi64((__m128i *)(data + 3 * src_stride));
+        d[4] = _mm_loadl_epi64((__m128i *)(data + 4 * src_stride));

-        if (w - j > 8) {
-          const __m256i res_hi = convolve_lowbd_6tap(s + 3, coeffs);
+        const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+        const __m256i src_12a = _mm256_setr_m128i(d[1], d[2]);
+        const __m256i src_23a = _mm256_setr_m128i(d[2], d[3]);
+        const __m256i src_34a = _mm256_setr_m128i(d[3], d[4]);

-          /* rounding code */
-          // shift by F - 1
-          const __m256i res_16b_hi = _mm256_sra_epi16(
-              _mm256_add_epi16(res_hi, right_shift_const), right_shift);
-          // 8 bit conversion and saturation to uint8
-          __m256i res_8b_hi = _mm256_packus_epi16(res_16b_hi, res_16b_hi);
+        s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+        s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);

-          __m256i res_a = _mm256_unpacklo_epi64(res_8b_lo, res_8b_hi);
+        do {
+          __m256i res;
+          convolve_y_6tap_8x2_avx2(data, src_stride, coeffs, d, s, &res);
+          round_pack_store_y_8x2_avx2(res, dst_ptr, dst_stride);

-          const __m128i res_0 = _mm256_castsi256_si128(res_a);
-          const __m128i res_1 = _mm256_extracti128_si256(res_a, 1);
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;

-          _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res_0);
-          _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
-                           res_1);
-        } else {
-          const __m128i res_0 = _mm256_castsi256_si128(res_8b_lo);
-          const __m128i res_1 = _mm256_extracti128_si256(res_8b_lo, 1);
-          if (w - j > 4) {
-            _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j], res_0);
-            _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
-                             res_1);
-          } else if (w - j > 2) {
-            xx_storel_32(&dst[i * dst_stride + j], res_0);
-            xx_storel_32(&dst[i * dst_stride + j + dst_stride], res_1);
-          } else {
-            __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j];
-            __m128i *const p_1 =
-                (__m128i *)&dst[i * dst_stride + j + dst_stride];
-            *(uint16_t *)p_0 = (uint16_t)_mm_cvtsi128_si32(res_0);
-            *(uint16_t *)p_1 = (uint16_t)_mm_cvtsi128_si32(res_1);
-          }
-        }
-        s[0] = s[1];
-        s[1] = s[2];
-        s[3] = s[4];
-        s[4] = s[5];
+          s[0] = s[1];
+          s[1] = s[2];
+        } while (y > 0);
+
+      } else {
+        assert(!(w % 16));
+
+        __m128i d[6];
+        __m256i s[6];
+        do {
+          data = src_ptr + x;
+          dst_ptr = dst + x;
+          y = h;
+
+          d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
+          d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
+          d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
+          d[3] = _mm_loadu_si128((__m128i *)(data + 3 * src_stride));
+          d[4] = _mm_loadu_si128((__m128i *)(data + 4 * src_stride));
+
+          const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+          const __m256i src_12a = _mm256_setr_m128i(d[1], d[2]);
+          const __m256i src_23a = _mm256_setr_m128i(d[2], d[3]);
+          const __m256i src_34a = _mm256_setr_m128i(d[3], d[4]);
+
+          s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+          s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+
+          s[3] = _mm256_unpackhi_epi8(src_01a, src_12a);
+          s[4] = _mm256_unpackhi_epi8(src_23a, src_34a);
+
+          do {
+            __m256i res[2];
+            convolve_y_6tap_16x2_avx2(data, src_stride, coeffs, d, s, res);
+            round_pack_store_y_16x2_avx2(res, dst_ptr, dst_stride);
+
+            dst_ptr += 2 * dst_stride;
+            data += 2 * src_stride;
+            y -= 2;
+
+            s[0] = s[1];
+            s[1] = s[2];
+
+            s[3] = s[4];
+            s[4] = s[5];
+          } while (y > 0);
+
+          x += 16;
+        } while (x < w);
       }
     }
   } else if (vert_tap == 12) {  // vert_tap == 12
-    const int fo_vert = filter_params_y->taps / 2 - 1;
-    const uint8_t *const src_ptr = src - fo_vert * src_stride;
+    __m128i d[12];
+    __m256i s[12];
+    prepare_coeffs_12taps(filter_params_y, subpel_y_qn, coeffs);
     const __m256i v_zero = _mm256_setzero_si256();
-    right_shift = _mm_cvtsi32_si128(FILTER_BITS);
-    right_shift_const = _mm256_set1_epi32((1 << FILTER_BITS) >> 1);
+    __m128i right_shift = _mm_cvtsi32_si128(FILTER_BITS);
+    __m256i right_shift_const = _mm256_set1_epi32((1 << FILTER_BITS) >> 1);

     for (int j = 0; j < w; j += 8) {
-      const uint8_t *data = &src_ptr[j];
+      data = &src_ptr[j];
       __m256i src10;

       d[0] = _mm_loadl_epi64((__m128i *)(data + 0 * src_stride));
@@ -393,118 +660,175 @@ static inline void av1_convolve_y_sr_general_avx2(
       }
     }
   } else {
-    const int fo_vert = filter_params_y->taps / 2 - 1;
-    const uint8_t *const src_ptr = src - fo_vert * src_stride;
-
-    for (int j = 0; j < w; j += 16) {
-      const uint8_t *data = &src_ptr[j];
-      __m256i src6;
-
-      d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
-      d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
-      d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
-      d[3] = _mm_loadu_si128((__m128i *)(data + 3 * src_stride));
-      d[4] = _mm_loadu_si128((__m128i *)(data + 4 * src_stride));
-      d[5] = _mm_loadu_si128((__m128i *)(data + 5 * src_stride));
-      // Load lines a and b. Line a to lower 128, line b to upper 128
-      const __m256i src_01a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[0]), _mm256_castsi128_si256(d[1]), 0x20);
+    assert(vert_tap == 8);

-      const __m256i src_12a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[1]), _mm256_castsi128_si256(d[2]), 0x20);
-
-      const __m256i src_23a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[2]), _mm256_castsi128_si256(d[3]), 0x20);
+    if (w <= 4) {
+      prepare_coeffs_ssse3(filter_params_y, subpel_y_qn, coeffs_128);

-      const __m256i src_34a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[3]), _mm256_castsi128_si256(d[4]), 0x20);
+      __m128i d[8], s[4], res;
+      if (w == 2) {
+        d[0] = _mm_cvtsi32_si128(loadu_int16(data + 0 * src_stride));
+        d[1] = _mm_cvtsi32_si128(loadu_int16(data + 1 * src_stride));
+        d[2] = _mm_cvtsi32_si128(loadu_int16(data + 2 * src_stride));
+        d[3] = _mm_cvtsi32_si128(loadu_int16(data + 3 * src_stride));
+        d[4] = _mm_cvtsi32_si128(loadu_int16(data + 4 * src_stride));
+        d[5] = _mm_cvtsi32_si128(loadu_int16(data + 5 * src_stride));
+        d[6] = _mm_cvtsi32_si128(loadu_int16(data + 6 * src_stride));
+
+        const __m128i src_01a = _mm_unpacklo_epi16(d[0], d[1]);
+        const __m128i src_12a = _mm_unpacklo_epi16(d[1], d[2]);
+        const __m128i src_23a = _mm_unpacklo_epi16(d[2], d[3]);
+        const __m128i src_34a = _mm_unpacklo_epi16(d[3], d[4]);
+        const __m128i src_45a = _mm_unpacklo_epi16(d[4], d[5]);
+        const __m128i src_56a = _mm_unpacklo_epi16(d[5], d[6]);
+
+        s[0] = _mm_unpacklo_epi8(src_01a, src_12a);
+        s[1] = _mm_unpacklo_epi8(src_23a, src_34a);
+        s[2] = _mm_unpacklo_epi8(src_45a, src_56a);

-      const __m256i src_45a = _mm256_permute2x128_si256(
-          _mm256_castsi128_si256(d[4]), _mm256_castsi128_si256(d[5]), 0x20);
+        do {
+          convolve_y_8tap_2x2_ssse3(data, src_stride, coeffs_128, d, s, &res);
+          res = round_sr_y_ssse3(res);
+          pack_store_u8_2x2_sse2(res, dst_ptr, dst_stride);

-      src6 = _mm256_castsi128_si256(
-          _mm_loadu_si128((__m128i *)(data + 6 * src_stride)));
-      const __m256i src_56a =
-          _mm256_permute2x128_si256(_mm256_castsi128_si256(d[5]), src6, 0x20);
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;

-      s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
-      s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
-      s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
+          s[0] = s[1];
+          s[1] = s[2];
+          s[2] = s[3];
+        } while (y > 0);

-      s[4] = _mm256_unpackhi_epi8(src_01a, src_12a);
-      s[5] = _mm256_unpackhi_epi8(src_23a, src_34a);
-      s[6] = _mm256_unpackhi_epi8(src_45a, src_56a);
+      } else {
+        assert(w == 4);
+
+        d[0] = _mm_cvtsi32_si128(loadu_int32(data + 0 * src_stride));
+        d[1] = _mm_cvtsi32_si128(loadu_int32(data + 1 * src_stride));
+        d[2] = _mm_cvtsi32_si128(loadu_int32(data + 2 * src_stride));
+        d[3] = _mm_cvtsi32_si128(loadu_int32(data + 3 * src_stride));
+        d[4] = _mm_cvtsi32_si128(loadu_int32(data + 4 * src_stride));
+        d[5] = _mm_cvtsi32_si128(loadu_int32(data + 5 * src_stride));
+        d[6] = _mm_cvtsi32_si128(loadu_int32(data + 6 * src_stride));
+
+        const __m128i src_01a = _mm_unpacklo_epi32(d[0], d[1]);
+        const __m128i src_12a = _mm_unpacklo_epi32(d[1], d[2]);
+        const __m128i src_23a = _mm_unpacklo_epi32(d[2], d[3]);
+        const __m128i src_34a = _mm_unpacklo_epi32(d[3], d[4]);
+        const __m128i src_45a = _mm_unpacklo_epi32(d[4], d[5]);
+        const __m128i src_56a = _mm_unpacklo_epi32(d[5], d[6]);
+
+        s[0] = _mm_unpacklo_epi8(src_01a, src_12a);
+        s[1] = _mm_unpacklo_epi8(src_23a, src_34a);
+        s[2] = _mm_unpacklo_epi8(src_45a, src_56a);

-      for (i = 0; i < h; i += 2) {
-        data = &src_ptr[i * src_stride + j];
-        const __m256i src_67a = _mm256_permute2x128_si256(
-            src6,
-            _mm256_castsi128_si256(
-                _mm_loadu_si128((__m128i *)(data + 7 * src_stride))),
-            0x20);
+        do {
+          convolve_y_8tap_4x2_ssse3(data, src_stride, coeffs_128, d, s, &res);
+          res = round_sr_y_ssse3(res);
+          pack_store_u8_4x2_sse2(res, dst_ptr, dst_stride);
+
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;
+
+          s[0] = s[1];
+          s[1] = s[2];
+          s[2] = s[3];
+        } while (y > 0);
+      }
+    } else {
+      prepare_coeffs_lowbd(filter_params_y, subpel_y_qn, coeffs);
+
+      if (w == 8) {
+        __m128i d[8];
+        __m256i s[4];
+
+        d[0] = _mm_loadl_epi64((__m128i *)(data + 0 * src_stride));
+        d[1] = _mm_loadl_epi64((__m128i *)(data + 1 * src_stride));
+        d[2] = _mm_loadl_epi64((__m128i *)(data + 2 * src_stride));
+        d[3] = _mm_loadl_epi64((__m128i *)(data + 3 * src_stride));
+        d[4] = _mm_loadl_epi64((__m128i *)(data + 4 * src_stride));
+        d[5] = _mm_loadl_epi64((__m128i *)(data + 5 * src_stride));
+        d[6] = _mm_loadl_epi64((__m128i *)(data + 6 * src_stride));
+
+        const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+        const __m256i src_12a = _mm256_setr_m128i(d[1], d[2]);
+        const __m256i src_23a = _mm256_setr_m128i(d[2], d[3]);
+        const __m256i src_34a = _mm256_setr_m128i(d[3], d[4]);
+        const __m256i src_45a = _mm256_setr_m128i(d[4], d[5]);
+        const __m256i src_56a = _mm256_setr_m128i(d[5], d[6]);
+
+        s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+        s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+        s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);

-        src6 = _mm256_castsi128_si256(
-            _mm_loadu_si128((__m128i *)(data + 8 * src_stride)));
-        const __m256i src_78a = _mm256_permute2x128_si256(
-            _mm256_castsi128_si256(
-                _mm_loadu_si128((__m128i *)(data + 7 * src_stride))),
-            src6, 0x20);
+        do {
+          __m256i res;
+          convolve_y_8tap_8x2_avx2(data, src_stride, coeffs, d, s, &res);
+          round_pack_store_y_8x2_avx2(res, dst_ptr, dst_stride);

-        s[3] = _mm256_unpacklo_epi8(src_67a, src_78a);
-        s[7] = _mm256_unpackhi_epi8(src_67a, src_78a);
+          dst_ptr += 2 * dst_stride;
+          data += 2 * src_stride;
+          y -= 2;

-        const __m256i res_lo = convolve_lowbd(s, coeffs);
+          s[0] = s[1];
+          s[1] = s[2];
+          s[2] = s[3];
+        } while (y > 0);

-        /* rounding code */
-        // shift by F - 1
-        const __m256i res_16b_lo = _mm256_sra_epi16(
-            _mm256_add_epi16(res_lo, right_shift_const), right_shift);
-        // 8 bit conversion and saturation to uint8
-        __m256i res_8b_lo = _mm256_packus_epi16(res_16b_lo, res_16b_lo);
+      } else {
+        assert(!(w % 16));

-        if (w - j > 8) {
-          const __m256i res_hi = convolve_lowbd(s + 4, coeffs);
+        __m128i d[8];
+        __m256i s[8];
+        do {
+          data = src_ptr + x;
+          dst_ptr = dst + x;
+          y = h;
+
+          d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
+          d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
+          d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
+          d[3] = _mm_loadu_si128((__m128i *)(data + 3 * src_stride));
+          d[4] = _mm_loadu_si128((__m128i *)(data + 4 * src_stride));
+          d[5] = _mm_loadu_si128((__m128i *)(data + 5 * src_stride));
+          d[6] = _mm_loadu_si128((__m128i *)(data + 6 * src_stride));
+
+          const __m256i src_01a = _mm256_setr_m128i(d[0], d[1]);
+          const __m256i src_12a = _mm256_setr_m128i(d[1], d[2]);
+          const __m256i src_23a = _mm256_setr_m128i(d[2], d[3]);
+          const __m256i src_34a = _mm256_setr_m128i(d[3], d[4]);
+          const __m256i src_45a = _mm256_setr_m128i(d[4], d[5]);
+          const __m256i src_56a = _mm256_setr_m128i(d[5], d[6]);
+
+          s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+          s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+          s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
+
+          s[4] = _mm256_unpackhi_epi8(src_01a, src_12a);
+          s[5] = _mm256_unpackhi_epi8(src_23a, src_34a);
+          s[6] = _mm256_unpackhi_epi8(src_45a, src_56a);

-          /* rounding code */
-          // shift by F - 1
-          const __m256i res_16b_hi = _mm256_sra_epi16(
-              _mm256_add_epi16(res_hi, right_shift_const), right_shift);
-          // 8 bit conversion and saturation to uint8
-          __m256i res_8b_hi = _mm256_packus_epi16(res_16b_hi, res_16b_hi);
+          do {
+            __m256i res[2];
+            convolve_y_8tap_16x2_avx2(data, src_stride, coeffs, d, s, res);
+            round_pack_store_y_16x2_avx2(res, dst_ptr, dst_stride);

-          __m256i res_a = _mm256_unpacklo_epi64(res_8b_lo, res_8b_hi);
+            dst_ptr += 2 * dst_stride;
+            data += 2 * src_stride;
+            y -= 2;

-          const __m128i res_0 = _mm256_castsi256_si128(res_a);
-          const __m128i res_1 = _mm256_extracti128_si256(res_a, 1);
+            s[0] = s[1];
+            s[1] = s[2];
+            s[2] = s[3];

-          _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res_0);
-          _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
-                           res_1);
-        } else {
-          const __m128i res_0 = _mm256_castsi256_si128(res_8b_lo);
-          const __m128i res_1 = _mm256_extracti128_si256(res_8b_lo, 1);
-          if (w - j > 4) {
-            _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j], res_0);
-            _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
-                             res_1);
-          } else if (w - j > 2) {
-            xx_storel_32(&dst[i * dst_stride + j], res_0);
-            xx_storel_32(&dst[i * dst_stride + j + dst_stride], res_1);
-          } else {
-            __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j];
-            __m128i *const p_1 =
-                (__m128i *)&dst[i * dst_stride + j + dst_stride];
-            *(uint16_t *)p_0 = (uint16_t)_mm_cvtsi128_si32(res_0);
-            *(uint16_t *)p_1 = (uint16_t)_mm_cvtsi128_si32(res_1);
-          }
-        }
-        s[0] = s[1];
-        s[1] = s[2];
-        s[2] = s[3];
+            s[4] = s[5];
+            s[5] = s[6];
+            s[6] = s[7];
+          } while (y > 0);

-        s[4] = s[5];
-        s[5] = s[6];
-        s[6] = s[7];
+          x += 16;
+        } while (x < w);
       }
     }
   }
@@ -515,20 +839,8 @@ void av1_convolve_y_sr_avx2(const uint8_t *src, int32_t src_stride,
                             int32_t h,
                             const InterpFilterParams *filter_params_y,
                             const int32_t subpel_y_qn) {
-#if CONFIG_SVT_AV1
-  const int vert_tap = get_filter_tap(filter_params_y, subpel_y_qn);
-
-  if (vert_tap == 12) {
-    av1_convolve_y_sr_general_avx2(src, src_stride, dst, dst_stride, w, h,
-                                   filter_params_y, subpel_y_qn);
-  } else {
-    av1_convolve_y_sr_specialized_avx2(src, src_stride, dst, dst_stride, w, h,
-                                       filter_params_y, subpel_y_qn);
-  }
-#else
   av1_convolve_y_sr_general_avx2(src, src_stride, dst, dst_stride, w, h,
                                  filter_params_y, subpel_y_qn);
-#endif
 }

 static inline void av1_convolve_x_sr_general_avx2(
@@ -562,7 +874,7 @@ static inline void av1_convolve_x_sr_general_avx2(
         const __m128i res =
             convolve_x_4tap_2x2_ssse3(src_ptr, src_stride, coeffs_128);
         const __m128i reg = round_sr_x_ssse3(res);
-        pack_store_x_2x2_sse2(reg, dst, dst_stride);
+        pack_store_u8_2x2_sse2(reg, dst, dst_stride);
         src_ptr += 2 * src_stride;
         dst += 2 * dst_stride;
         h -= 2;
@@ -573,7 +885,7 @@ static inline void av1_convolve_x_sr_general_avx2(
         const __m128i reg =
             convolve_x_4tap_4x2_ssse3(src_ptr, src_stride, coeffs_128);
         const __m128i res = round_sr_x_ssse3(reg);
-        pack_store_x_4x2_sse2(res, dst, dst_stride);
+        pack_store_u8_4x2_sse2(res, dst, dst_stride);
         src_ptr += 2 * src_stride;
         dst += 2 * dst_stride;
         h -= 2;
@@ -920,7 +1232,7 @@ static inline void av1_convolve_x_sr_general_avx2(
             const __m128i data =
                 convolve_x_2tap_2x2_ssse3(src_ptr, src_stride, coeffs_128);
             const __m128i reg = round_sr_x_ssse3(data);
-            pack_store_x_2x2_sse2(reg, dst, dst_stride);
+            pack_store_u8_2x2_sse2(reg, dst, dst_stride);
             src_ptr += 2 * src_stride;
             dst += 2 * dst_stride;
             h -= 2;
@@ -930,7 +1242,7 @@ static inline void av1_convolve_x_sr_general_avx2(
             const __m128i data =
                 convolve_x_2tap_4x2_ssse3(src_ptr, src_stride, coeffs_128);
             const __m128i reg = round_sr_x_ssse3(data);
-            pack_store_x_4x2_sse2(reg, dst, dst_stride);
+            pack_store_u8_4x2_sse2(reg, dst, dst_stride);
             src_ptr += 2 * src_stride;
             dst += 2 * dst_stride;
             h -= 2;