| // Copyright 2021 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <immintrin.h> |
| |
| #include <xnnpack/dwconv.h> |
| #include <xnnpack/math.h> |
| |
| |
| void xnn_f32_dwconv2d_chw_ukernel_3x3p1__ssse3_2x4_acc2( |
| size_t input_height, |
| size_t input_width, |
| const float* input, |
| const float* weights, |
| const float* zero, |
| float* output, |
| uint32_t padding_top, |
| const union xnn_f32_chw_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS |
| { |
| assert(input_height != 0); |
| assert(input_width != 0); |
| assert(input_width % sizeof(float) == 0); |
| assert(padding_top == 1); |
| |
| const __m128 vmask = _mm_load_ps((const float*) params->sse.mask); |
| const __m128 vmax = _mm_load_ps(params->sse.max); |
| const __m128 vmin = _mm_load_ps(params->sse.min); |
| |
| const __m128 vbias = _mm_load1_ps(weights); |
| const __m128 vk00 = _mm_load1_ps(weights + 1); |
| const __m128 vk01 = _mm_load1_ps(weights + 2); |
| const __m128 vk02 = _mm_load1_ps(weights + 3); |
| const __m128 vk10 = _mm_load1_ps(weights + 4); |
| const __m128 vk11 = _mm_load1_ps(weights + 5); |
| const __m128 vk12 = _mm_load1_ps(weights + 6); |
| const __m128 vk20 = _mm_load1_ps(weights + 7); |
| const __m128 vk21 = _mm_load1_ps(weights + 8); |
| const __m128 vk22 = _mm_load1_ps(weights + 9); |
| |
| const size_t input_decrement = round_up_po2(input_width, 4 * sizeof(float)); |
| |
| const float* i0 = zero; |
| const float* i1 = input; |
| const float* i2 = (const float*) ((uintptr_t) i1 + input_width); |
| const float* i3 = (const float*) ((uintptr_t) i2 + input_width); |
| |
| float* o0 = output; |
| float* o1 = (float*) ((uintptr_t) o0 + input_width); |
| |
| size_t output_height = input_height; |
| do { |
| if XNN_UNPREDICTABLE(output_height < 2) { |
| i2 = zero; |
| o1 = o0; |
| } |
| if XNN_UNPREDICTABLE(output_height < 3) { |
| i3 = zero; |
| } |
| |
| __m128 vi0x0123 = _mm_setzero_ps(); |
| __m128 vi1x0123 = _mm_setzero_ps(); |
| __m128 vi2x0123 = _mm_setzero_ps(); |
| __m128 vi3x0123 = _mm_setzero_ps(); |
| |
| __m128 vi0x4567 = _mm_loadu_ps(i0); |
| i0 += 4; |
| __m128 vi1x4567 = _mm_loadu_ps(i1); |
| i1 += 4; |
| __m128 vi2x4567 = _mm_loadu_ps(i2); |
| i2 += 4; |
| __m128 vi3x4567 = _mm_loadu_ps(i3); |
| i3 += 4; |
| |
| size_t w = input_width; |
| for (; w > 4 * sizeof(float); w -= 4 * sizeof(float)) { |
| const __m128 vi0x89AB = _mm_loadu_ps(i0); |
| i0 += 4; |
| const __m128 vi1x89AB = _mm_loadu_ps(i1); |
| i1 += 4; |
| const __m128 vi2x89AB = _mm_loadu_ps(i2); |
| i2 += 4; |
| const __m128 vi3x89AB = _mm_loadu_ps(i3); |
| i3 += 4; |
| |
| __m128 vo0p0 = _mm_add_ps(vbias, _mm_mul_ps(vi0x4567, vk01)); |
| __m128 vo1p0 = _mm_add_ps(vbias, _mm_mul_ps(vi1x4567, vk01)); |
| __m128 vo0p1 = _mm_mul_ps(vi1x4567, vk11); |
| __m128 vo1p1 = _mm_mul_ps(vi2x4567, vk11); |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi2x4567, vk21)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi3x4567, vk21)); |
| |
| const __m128 vi0x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi0x4567), _mm_castps_si128(vi0x0123), 12)); |
| const __m128 vi1x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi1x4567), _mm_castps_si128(vi1x0123), 12)); |
| const __m128 vi2x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi2x4567), _mm_castps_si128(vi2x0123), 12)); |
| const __m128 vi3x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi3x4567), _mm_castps_si128(vi3x0123), 12)); |
| |
| vo0p1 = _mm_add_ps(vo0p1, _mm_mul_ps(vi0x3456, vk00)); |
| vo1p1 = _mm_add_ps(vo1p1, _mm_mul_ps(vi1x3456, vk00)); |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi1x3456, vk10)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi2x3456, vk10)); |
| vo0p1 = _mm_add_ps(vo0p1, _mm_mul_ps(vi2x3456, vk20)); |
| vo1p1 = _mm_add_ps(vo1p1, _mm_mul_ps(vi3x3456, vk20)); |
| |
| vi0x0123 = vi0x4567; |
| vi1x0123 = vi1x4567; |
| vi2x0123 = vi2x4567; |
| vi3x0123 = vi3x4567; |
| |
| const __m128 vi0x5678 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi0x89AB), _mm_castps_si128(vi0x4567), 4)); |
| const __m128 vi1x5678 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi1x89AB), _mm_castps_si128(vi1x4567), 4)); |
| const __m128 vi2x5678 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi2x89AB), _mm_castps_si128(vi2x4567), 4)); |
| const __m128 vi3x5678 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi3x89AB), _mm_castps_si128(vi3x4567), 4)); |
| |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi0x5678, vk02)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi1x5678, vk02)); |
| vo0p1 = _mm_add_ps(vo0p1, _mm_mul_ps(vi1x5678, vk12)); |
| vo1p1 = _mm_add_ps(vo1p1, _mm_mul_ps(vi2x5678, vk12)); |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi2x5678, vk22)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi3x5678, vk22)); |
| |
| vi0x4567 = vi0x89AB; |
| vi1x4567 = vi1x89AB; |
| vi2x4567 = vi2x89AB; |
| vi3x4567 = vi3x89AB; |
| |
| vo0p0 = _mm_add_ps(vo0p0, vo0p1); |
| vo1p0 = _mm_add_ps(vo1p0, vo1p1); |
| |
| __m128 vo0 = _mm_max_ps(vo0p0, vmin); |
| __m128 vo1 = _mm_max_ps(vo1p0, vmin); |
| |
| vo0 = _mm_min_ps(vo0, vmax); |
| vo1 = _mm_min_ps(vo1, vmax); |
| |
| _mm_storeu_ps(o1, vo1); |
| o1 += 4; |
| _mm_storeu_ps(o0, vo0); |
| o0 += 4; |
| } |
| // Always process the last block of 1..4 pixels. |
| assert(w >= 1 * sizeof(float)); |
| assert(w <= 4 * sizeof(float)); |
| { |
| vi0x4567 = _mm_and_ps(vmask, vi0x4567); |
| vi1x4567 = _mm_and_ps(vmask, vi1x4567); |
| vi2x4567 = _mm_and_ps(vmask, vi2x4567); |
| vi3x4567 = _mm_and_ps(vmask, vi3x4567); |
| |
| __m128 vo0p0 = _mm_add_ps(vbias, _mm_mul_ps(vi0x4567, vk01)); |
| __m128 vo1p0 = _mm_add_ps(vbias, _mm_mul_ps(vi1x4567, vk01)); |
| __m128 vo0p1 = _mm_mul_ps(vi1x4567, vk11); |
| __m128 vo1p1 = _mm_mul_ps(vi2x4567, vk11); |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi2x4567, vk21)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi3x4567, vk21)); |
| |
| const __m128 vi0x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi0x4567), _mm_castps_si128(vi0x0123), 12)); |
| const __m128 vi1x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi1x4567), _mm_castps_si128(vi1x0123), 12)); |
| const __m128 vi2x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi2x4567), _mm_castps_si128(vi2x0123), 12)); |
| const __m128 vi3x3456 = _mm_castsi128_ps(_mm_alignr_epi8(_mm_castps_si128(vi3x4567), _mm_castps_si128(vi3x0123), 12)); |
| |
| vo0p1 = _mm_add_ps(vo0p1, _mm_mul_ps(vi0x3456, vk00)); |
| vo1p1 = _mm_add_ps(vo1p1, _mm_mul_ps(vi1x3456, vk00)); |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi1x3456, vk10)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi2x3456, vk10)); |
| vo0p1 = _mm_add_ps(vo0p1, _mm_mul_ps(vi2x3456, vk20)); |
| vo1p1 = _mm_add_ps(vo1p1, _mm_mul_ps(vi3x3456, vk20)); |
| |
| const __m128i vzero = _mm_setzero_si128(); |
| const __m128 vi0x5678 = _mm_castsi128_ps(_mm_alignr_epi8(vzero, _mm_castps_si128(vi0x4567), 4)); |
| const __m128 vi1x5678 = _mm_castsi128_ps(_mm_alignr_epi8(vzero, _mm_castps_si128(vi1x4567), 4)); |
| const __m128 vi2x5678 = _mm_castsi128_ps(_mm_alignr_epi8(vzero, _mm_castps_si128(vi2x4567), 4)); |
| const __m128 vi3x5678 = _mm_castsi128_ps(_mm_alignr_epi8(vzero, _mm_castps_si128(vi3x4567), 4)); |
| |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi0x5678, vk02)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi1x5678, vk02)); |
| vo0p1 = _mm_add_ps(vo0p1, _mm_mul_ps(vi1x5678, vk12)); |
| vo1p1 = _mm_add_ps(vo1p1, _mm_mul_ps(vi2x5678, vk12)); |
| vo0p0 = _mm_add_ps(vo0p0, _mm_mul_ps(vi2x5678, vk22)); |
| vo1p0 = _mm_add_ps(vo1p0, _mm_mul_ps(vi3x5678, vk22)); |
| |
| vo0p0 = _mm_add_ps(vo0p0, vo0p1); |
| vo1p0 = _mm_add_ps(vo1p0, vo1p1); |
| |
| __m128 vo0 = _mm_max_ps(vo0p0, vmin); |
| __m128 vo1 = _mm_max_ps(vo1p0, vmin); |
| |
| vo0 = _mm_min_ps(vo0, vmax); |
| vo1 = _mm_min_ps(vo1, vmax); |
| |
| if XNN_LIKELY(w == 4 * sizeof(float)) { |
| _mm_storeu_ps(o1, vo1); |
| o1 += 4; |
| _mm_storeu_ps(o0, vo0); |
| o0 += 4; |
| } else { |
| if (w & (2 * sizeof(float))) { |
| _mm_storel_pi((__m64*) o1, vo1); |
| o1 += 2; |
| _mm_storel_pi((__m64*) o0, vo0); |
| o0 += 2; |
| |
| vo0 = _mm_movehl_ps(vo0, vo0); |
| vo1 = _mm_movehl_ps(vo1, vo1); |
| } |
| if (w & (1 * sizeof(float))) { |
| _mm_store_ss(o1, vo1); |
| o1 += 1; |
| _mm_store_ss(o0, vo0); |
| o0 += 1; |
| } |
| } |
| } |
| |
| i0 = (const float*) ((uintptr_t) i2 - input_decrement); |
| i1 = (const float*) ((uintptr_t) i3 - input_decrement); |
| i2 = (const float*) ((uintptr_t) i1 + input_width); |
| i3 = (const float*) ((uintptr_t) i2 + input_width); |
| |
| o0 = o1; |
| o1 = (float*) ((uintptr_t) o0 + input_width); |
| |
| output_height = doz(output_height, 2); |
| } while (output_height != 0); |
| } |