| // Auto-generated file. Do not edit! |
| // Template: src/f32-dwconv2d-chw/3x3s2p1-neon.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2020 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <arm_neon.h> |
| |
| #include <xnnpack/dwconv.h> |
| #include <xnnpack/math.h> |
| |
| |
| void xnn_f32_dwconv2d_chw_ukernel_3x3s2p1__neon_1x4_acc4( |
| 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 >= 0); |
| assert(padding_top <= 1); |
| |
| const uint32x4_t vmask_even = vld1q_u32(params->neon.mask_even); |
| const uint32x4_t vmask_odd = vld1q_u32(params->neon.mask_odd); |
| const float32x4_t vmax = vld1q_dup_f32(¶ms->neon.max); |
| const float32x4_t vmin = vld1q_dup_f32(¶ms->neon.min); |
| |
| const float32x4_t vw0123 = vld1q_f32(weights); |
| const float32x4_t vw4567 = vld1q_f32(weights + 4); |
| const float32x2_t vw89 = vld1_f32(weights + 8); |
| |
| const size_t input_decrement = round_down_po2(input_width, 4 /* SIMD output width */ * 2 /* subsampling */ * sizeof(float)); |
| |
| const float* i0 = (const float*) ((uintptr_t) input - ((-padding_top) & input_width)); |
| const float* i1 = (const float*) ((uintptr_t) i0 + input_width); |
| if XNN_UNPREDICTABLE(padding_top != 0) { |
| i0 = zero; |
| } |
| const float* i2 = (const float*) ((uintptr_t) i1 + input_width); |
| |
| float* o0 = output; |
| |
| size_t padded_input_height = input_height + padding_top + 1 /* padding bottom */; |
| size_t output_height = (padded_input_height - 3 /* kernel size */ + 2 /* subsampling */) / 2; |
| do { |
| if XNN_UNPREDICTABLE(padded_input_height < 4) { |
| i2 = zero; |
| } |
| |
| float32x4_t vi0x1357 = vmovq_n_f32(0.0f); |
| float32x4_t vi1x1357 = vmovq_n_f32(0.0f); |
| float32x4_t vi2x1357 = vmovq_n_f32(0.0f); |
| |
| size_t w = input_width; |
| for (; w >= 8 * sizeof(float); w -= 8 * sizeof(float)) { |
| float32x4_t vo0p0 = vdupq_lane_f32(vget_low_f32(vw0123), 0); |
| |
| const float32x4x2_t vi0x8ACE9BDF = vld2q_f32(i0); i0 += 8; |
| const float32x4x2_t vi1x8ACE9BDF = vld2q_f32(i1); i1 += 8; |
| const float32x4x2_t vi2x8ACE9BDF = vld2q_f32(i2); i2 += 8; |
| |
| float32x4_t vo0p1 = vmulq_lane_f32(vi0x8ACE9BDF.val[0], vget_high_f32(vw0123), 0); |
| |
| float32x4_t vo0p2 = vmulq_lane_f32(vi1x8ACE9BDF.val[0], vget_low_f32(vw4567), 1); |
| |
| float32x4_t vo0p3 = vmulq_lane_f32(vi2x8ACE9BDF.val[0], vw89, 0); |
| |
| const float32x4_t vi0x7BDF = vextq_f32(vi0x1357, vi0x8ACE9BDF.val[1], 3); |
| vi0x1357 = vi0x8ACE9BDF.val[1]; |
| const float32x4_t vi1x7BDF = vextq_f32(vi1x1357, vi1x8ACE9BDF.val[1], 3); |
| vi1x1357 = vi1x8ACE9BDF.val[1]; |
| const float32x4_t vi2x7BDF = vextq_f32(vi2x1357, vi2x8ACE9BDF.val[1], 3); |
| vi2x1357 = vi2x8ACE9BDF.val[1]; |
| |
| vo0p1 = vmlaq_lane_f32(vo0p1, vi0x7BDF, vget_low_f32(vw0123), 1); |
| |
| vo0p2 = vmlaq_lane_f32(vo0p2, vi1x7BDF, vget_low_f32(vw4567), 0); |
| |
| vo0p3 = vmlaq_lane_f32(vo0p3, vi2x7BDF, vget_high_f32(vw4567), 1); |
| |
| vo0p0 = vmlaq_lane_f32(vo0p0, vi0x8ACE9BDF.val[1], vget_high_f32(vw0123), 1); |
| |
| vo0p1 = vmlaq_lane_f32(vo0p1, vi1x8ACE9BDF.val[1], vget_high_f32(vw4567), 0); |
| |
| vo0p2 = vmlaq_lane_f32(vo0p2, vi2x8ACE9BDF.val[1], vw89, 1); |
| |
| vo0p0 = vaddq_f32(vo0p0, vo0p1); |
| vo0p2 = vaddq_f32(vo0p2, vo0p3); |
| vo0p0 = vaddq_f32(vo0p0, vo0p2); |
| |
| float32x4_t vo0 = vmaxq_f32(vo0p0, vmin); |
| |
| vo0 = vminq_f32(vo0, vmax); |
| |
| vst1q_f32(o0, vo0); o0 += 4; |
| } |
| // Last block has 0-7 pixels to process. |
| assert(w < 8 * sizeof(float)); |
| if XNN_LIKELY(w != 0) { |
| float32x4_t vo0p0 = vdupq_lane_f32(vget_low_f32(vw0123), 0); |
| |
| const float32x4x2_t vi0x8ACE9BDF = vld2q_f32(i0); |
| const float32x4x2_t vi1x8ACE9BDF = vld2q_f32(i1); |
| const float32x4x2_t vi2x8ACE9BDF = vld2q_f32(i2); |
| |
| const float32x4_t vi0x8ACE = vreinterpretq_f32_u32(vandq_u32(vmask_even, vreinterpretq_u32_f32(vi0x8ACE9BDF.val[0]))); |
| const float32x4_t vi0x9BDF = vreinterpretq_f32_u32(vandq_u32(vmask_odd, vreinterpretq_u32_f32(vi0x8ACE9BDF.val[1]))); |
| const float32x4_t vi1x8ACE = vreinterpretq_f32_u32(vandq_u32(vmask_even, vreinterpretq_u32_f32(vi1x8ACE9BDF.val[0]))); |
| const float32x4_t vi1x9BDF = vreinterpretq_f32_u32(vandq_u32(vmask_odd, vreinterpretq_u32_f32(vi1x8ACE9BDF.val[1]))); |
| const float32x4_t vi2x8ACE = vreinterpretq_f32_u32(vandq_u32(vmask_even, vreinterpretq_u32_f32(vi2x8ACE9BDF.val[0]))); |
| const float32x4_t vi2x9BDF = vreinterpretq_f32_u32(vandq_u32(vmask_odd, vreinterpretq_u32_f32(vi2x8ACE9BDF.val[1]))); |
| |
| float32x4_t vo0p1 = vmulq_lane_f32(vi0x8ACE, vget_high_f32(vw0123), 0); |
| |
| float32x4_t vo0p2 = vmulq_lane_f32(vi1x8ACE, vget_low_f32(vw4567), 1); |
| |
| float32x4_t vo0p3 = vmulq_lane_f32(vi2x8ACE, vw89, 0); |
| |
| const float32x4_t vi0x7BDF = vextq_f32(vi0x1357, vi0x9BDF, 3); |
| const float32x4_t vi1x7BDF = vextq_f32(vi1x1357, vi1x9BDF, 3); |
| const float32x4_t vi2x7BDF = vextq_f32(vi2x1357, vi2x9BDF, 3); |
| |
| vo0p1 = vmlaq_lane_f32(vo0p1, vi0x7BDF, vget_low_f32(vw0123), 1); |
| |
| vo0p2 = vmlaq_lane_f32(vo0p2, vi1x7BDF, vget_low_f32(vw4567), 0); |
| |
| vo0p3 = vmlaq_lane_f32(vo0p3, vi2x7BDF, vget_high_f32(vw4567), 1); |
| |
| vo0p0 = vmlaq_lane_f32(vo0p0, vi0x9BDF, vget_high_f32(vw0123), 1); |
| |
| vo0p1 = vmlaq_lane_f32(vo0p1, vi1x9BDF, vget_high_f32(vw4567), 0); |
| |
| vo0p2 = vmlaq_lane_f32(vo0p2, vi2x9BDF, vw89, 1); |
| |
| vo0p0 = vaddq_f32(vo0p0, vo0p1); |
| vo0p2 = vaddq_f32(vo0p2, vo0p3); |
| vo0p0 = vaddq_f32(vo0p0, vo0p2); |
| |
| float32x4_t vo0 = vmaxq_f32(vo0p0, vmin); |
| |
| vo0 = vminq_f32(vo0, vmax); |
| |
| w += 1 * sizeof(float); |
| if (w & (8 * sizeof(float))) { |
| vst1q_f32(o0, vo0); o0 += 4; |
| } else { |
| float32x2_t vo0_lo = vget_low_f32(vo0); |
| if (w & (4 * sizeof(float))) { |
| vst1_f32(o0, vo0_lo); o0 += 2; |
| |
| vo0_lo = vget_high_f32(vo0); |
| } |
| if (w & (2 * sizeof(float))) { |
| vst1_lane_f32(o0, vo0_lo, 0); o0 += 1; |
| } |
| } |
| } |
| |
| i0 = (const float*) ((uintptr_t) i2 - input_decrement); |
| i1 = (const float*) ((uintptr_t) i0 + input_width); |
| i2 = (const float*) ((uintptr_t) i1 + input_width); |
| |
| |
| output_height -= 1; |
| padded_input_height -= 2; |
| } while (output_height != 0); |
| } |