// Auto-generated file. Do not edit! // Template: src/f32-sigmoid/neon-lut64-p2.c.in // Generator: tools/xngen // // Copyright 2019 Google LLC // // This source code is licensed under the BSD-style license found in the // LICENSE file in the root directory of this source tree. #include #include #include #include extern XNN_INTERNAL const float xnn_table_exp2minus_k_over_64[64]; void xnn_f32_sigmoid_ukernel__neonfma_rr1_lut64_p2_div_x24( size_t n, const float* x, float* y, const void* params) XNN_DISABLE_TSAN { assert(n % sizeof(float) == 0); const float32x4_t vmagic_bias = vmovq_n_f32(0x1.800000p17f); const float32x4_t vminus_log2e = vmovq_n_f32(-0x1.715476p0f); const int32x4_t vindex_mask = vmovq_n_s32(INT32_C(0x3F)); const float32x4_t vln2 = vmovq_n_f32(0x1.62E43p-1f); const float32x4_t vc2 = vmovq_n_f32(0x1.FFFF0Ap-2f); const float32x4_t vone = vmovq_n_f32(1.0f); const float32x4_t vdenorm_cutoff = vmovq_n_f32(-0x1.5D589Ep+6f); for (; n >= 24 * sizeof(float); n -= 24 * sizeof(float)) { const float32x4_t vx0123 = vld1q_f32(x); x += 4; const float32x4_t vx4567 = vld1q_f32(x); x += 4; const float32x4_t vx89AB = vld1q_f32(x); x += 4; const float32x4_t vxCDEF = vld1q_f32(x); x += 4; const float32x4_t vxGHIJ = vld1q_f32(x); x += 4; const float32x4_t vxKLMN = vld1q_f32(x); x += 4; const float32x4_t vz0123 = vabsq_f32(vx0123); const float32x4_t vz4567 = vabsq_f32(vx4567); const float32x4_t vz89AB = vabsq_f32(vx89AB); const float32x4_t vzCDEF = vabsq_f32(vxCDEF); const float32x4_t vzGHIJ = vabsq_f32(vxGHIJ); const float32x4_t vzKLMN = vabsq_f32(vxKLMN); float32x4_t vn0123 = vfmaq_f32(vmagic_bias, vz0123, vminus_log2e); float32x4_t vn4567 = vfmaq_f32(vmagic_bias, vz4567, vminus_log2e); float32x4_t vn89AB = vfmaq_f32(vmagic_bias, vz89AB, vminus_log2e); float32x4_t vnCDEF = vfmaq_f32(vmagic_bias, vzCDEF, vminus_log2e); float32x4_t vnGHIJ = vfmaq_f32(vmagic_bias, vzGHIJ, vminus_log2e); float32x4_t vnKLMN = vfmaq_f32(vmagic_bias, vzKLMN, vminus_log2e); const int32x4_t ve0123 = vshlq_n_s32(vreinterpretq_s32_f32(vn0123), 17); const int32x4_t ve4567 = vshlq_n_s32(vreinterpretq_s32_f32(vn4567), 17); const int32x4_t ve89AB = vshlq_n_s32(vreinterpretq_s32_f32(vn89AB), 17); const int32x4_t veCDEF = vshlq_n_s32(vreinterpretq_s32_f32(vnCDEF), 17); const int32x4_t veGHIJ = vshlq_n_s32(vreinterpretq_s32_f32(vnGHIJ), 17); const int32x4_t veKLMN = vshlq_n_s32(vreinterpretq_s32_f32(vnKLMN), 17); // Use bits 0:6 bits of n, as integer, as an index for table lookup of l := 2**(n % 64). const uint64x2_t vidx0123 = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn0123), vindex_mask)); const uint64x2_t vidx4567 = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn4567), vindex_mask)); const uint64x2_t vidx89AB = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn89AB), vindex_mask)); const uint64x2_t vidxCDEF = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vnCDEF), vindex_mask)); const uint64x2_t vidxGHIJ = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vnGHIJ), vindex_mask)); const uint64x2_t vidxKLMN = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vnKLMN), vindex_mask)); const uint64_t vidx01 = vgetq_lane_u64(vidx0123, 0); const uint64_t vidx23 = vgetq_lane_u64(vidx0123, 1); float32x2_t vl01 = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx01]); float32x2_t vl23 = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx23]); const uint64_t vidx45 = vgetq_lane_u64(vidx4567, 0); const uint64_t vidx67 = vgetq_lane_u64(vidx4567, 1); float32x2_t vl45 = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx45]); float32x2_t vl67 = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx67]); const uint64_t vidx89 = vgetq_lane_u64(vidx89AB, 0); const uint64_t vidxAB = vgetq_lane_u64(vidx89AB, 1); float32x2_t vl89 = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx89]); float32x2_t vlAB = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidxAB]); const uint64_t vidxCD = vgetq_lane_u64(vidxCDEF, 0); const uint64_t vidxEF = vgetq_lane_u64(vidxCDEF, 1); float32x2_t vlCD = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidxCD]); float32x2_t vlEF = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidxEF]); const uint64_t vidxGH = vgetq_lane_u64(vidxGHIJ, 0); const uint64_t vidxIJ = vgetq_lane_u64(vidxGHIJ, 1); float32x2_t vlGH = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidxGH]); float32x2_t vlIJ = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidxIJ]); const uint64_t vidxKL = vgetq_lane_u64(vidxKLMN, 0); const uint64_t vidxMN = vgetq_lane_u64(vidxKLMN, 1); float32x2_t vlKL = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidxKL]); float32x2_t vlMN = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidxMN]); vl01 = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx01 >> 32)], vl01, 1); vl23 = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx23 >> 32)], vl23, 1); const float32x4_t vl0123 = vcombine_f32(vl01, vl23); vl45 = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx45 >> 32)], vl45, 1); vl67 = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx67 >> 32)], vl67, 1); const float32x4_t vl4567 = vcombine_f32(vl45, vl67); vl89 = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx89 >> 32)], vl89, 1); vlAB = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidxAB >> 32)], vlAB, 1); const float32x4_t vl89AB = vcombine_f32(vl89, vlAB); vlCD = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidxCD >> 32)], vlCD, 1); vlEF = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidxEF >> 32)], vlEF, 1); const float32x4_t vlCDEF = vcombine_f32(vlCD, vlEF); vlGH = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidxGH >> 32)], vlGH, 1); vlIJ = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidxIJ >> 32)], vlIJ, 1); const float32x4_t vlGHIJ = vcombine_f32(vlGH, vlIJ); vlKL = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidxKL >> 32)], vlKL, 1); vlMN = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidxMN >> 32)], vlMN, 1); const float32x4_t vlKLMN = vcombine_f32(vlKL, vlMN); const float32x4_t vs0123 = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl0123), ve0123)); const float32x4_t vs4567 = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl4567), ve4567)); const float32x4_t vs89AB = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl89AB), ve89AB)); const float32x4_t vsCDEF = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vlCDEF), veCDEF)); const float32x4_t vsGHIJ = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vlGHIJ), veGHIJ)); const float32x4_t vsKLMN = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vlKLMN), veKLMN)); vn0123 = vsubq_f32(vn0123, vmagic_bias); vn4567 = vsubq_f32(vn4567, vmagic_bias); vn89AB = vsubq_f32(vn89AB, vmagic_bias); vnCDEF = vsubq_f32(vnCDEF, vmagic_bias); vnGHIJ = vsubq_f32(vnGHIJ, vmagic_bias); vnKLMN = vsubq_f32(vnKLMN, vmagic_bias); float32x4_t vt0123 = vfmaq_f32(vz0123, vn0123, vln2); float32x4_t vt4567 = vfmaq_f32(vz4567, vn4567, vln2); float32x4_t vt89AB = vfmaq_f32(vz89AB, vn89AB, vln2); float32x4_t vtCDEF = vfmaq_f32(vzCDEF, vnCDEF, vln2); float32x4_t vtGHIJ = vfmaq_f32(vzGHIJ, vnGHIJ, vln2); float32x4_t vtKLMN = vfmaq_f32(vzKLMN, vnKLMN, vln2); float32x4_t vp0123 = vmulq_f32(vt0123, vc2); float32x4_t vp4567 = vmulq_f32(vt4567, vc2); float32x4_t vp89AB = vmulq_f32(vt89AB, vc2); float32x4_t vpCDEF = vmulq_f32(vtCDEF, vc2); float32x4_t vpGHIJ = vmulq_f32(vtGHIJ, vc2); float32x4_t vpKLMN = vmulq_f32(vtKLMN, vc2); vp0123 = vfmsq_f32(vt0123, vp0123, vt0123); vp4567 = vfmsq_f32(vt4567, vp4567, vt4567); vp89AB = vfmsq_f32(vt89AB, vp89AB, vt89AB); vpCDEF = vfmsq_f32(vtCDEF, vpCDEF, vtCDEF); vpGHIJ = vfmsq_f32(vtGHIJ, vpGHIJ, vtGHIJ); vpKLMN = vfmsq_f32(vtKLMN, vpKLMN, vtKLMN); const float32x4_t vy0123 = vfmsq_f32(vs0123, vs0123, vp0123); const float32x4_t vy4567 = vfmsq_f32(vs4567, vs4567, vp4567); const float32x4_t vy89AB = vfmsq_f32(vs89AB, vs89AB, vp89AB); const float32x4_t vyCDEF = vfmsq_f32(vsCDEF, vsCDEF, vpCDEF); const float32x4_t vyGHIJ = vfmsq_f32(vsGHIJ, vsGHIJ, vpGHIJ); const float32x4_t vyKLMN = vfmsq_f32(vsKLMN, vsKLMN, vpKLMN); const float32x4_t vd0123 = vaddq_f32(vy0123, vone); const float32x4_t vd4567 = vaddq_f32(vy4567, vone); const float32x4_t vd89AB = vaddq_f32(vy89AB, vone); const float32x4_t vdCDEF = vaddq_f32(vyCDEF, vone); const float32x4_t vdGHIJ = vaddq_f32(vyGHIJ, vone); const float32x4_t vdKLMN = vaddq_f32(vyKLMN, vone); float32x4_t vf0123 = vdivq_f32(vy0123, vd0123); float32x4_t vf4567 = vdivq_f32(vy4567, vd4567); float32x4_t vf89AB = vdivq_f32(vy89AB, vd89AB); float32x4_t vfCDEF = vdivq_f32(vyCDEF, vdCDEF); float32x4_t vfGHIJ = vdivq_f32(vyGHIJ, vdGHIJ); float32x4_t vfKLMN = vdivq_f32(vyKLMN, vdKLMN); vf0123 = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf0123), vcagtq_f32(vx0123, vdenorm_cutoff))); vf4567 = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf4567), vcagtq_f32(vx4567, vdenorm_cutoff))); vf89AB = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf89AB), vcagtq_f32(vx89AB, vdenorm_cutoff))); vfCDEF = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vfCDEF), vcagtq_f32(vxCDEF, vdenorm_cutoff))); vfGHIJ = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vfGHIJ), vcagtq_f32(vxGHIJ, vdenorm_cutoff))); vfKLMN = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vfKLMN), vcagtq_f32(vxKLMN, vdenorm_cutoff))); const uint32x4_t vm0123 = vcltq_f32(vx0123, vmovq_n_f32(0.0f)); const uint32x4_t vm4567 = vcltq_f32(vx4567, vmovq_n_f32(0.0f)); const uint32x4_t vm89AB = vcltq_f32(vx89AB, vmovq_n_f32(0.0f)); const uint32x4_t vmCDEF = vcltq_f32(vxCDEF, vmovq_n_f32(0.0f)); const uint32x4_t vmGHIJ = vcltq_f32(vxGHIJ, vmovq_n_f32(0.0f)); const uint32x4_t vmKLMN = vcltq_f32(vxKLMN, vmovq_n_f32(0.0f)); vf0123 = vbslq_f32(vm0123, vf0123, vsubq_f32(vone, vf0123)); vf4567 = vbslq_f32(vm4567, vf4567, vsubq_f32(vone, vf4567)); vf89AB = vbslq_f32(vm89AB, vf89AB, vsubq_f32(vone, vf89AB)); vfCDEF = vbslq_f32(vmCDEF, vfCDEF, vsubq_f32(vone, vfCDEF)); vfGHIJ = vbslq_f32(vmGHIJ, vfGHIJ, vsubq_f32(vone, vfGHIJ)); vfKLMN = vbslq_f32(vmKLMN, vfKLMN, vsubq_f32(vone, vfKLMN)); vst1q_f32(y, vf0123); y += 4; vst1q_f32(y, vf4567); y += 4; vst1q_f32(y, vf89AB); y += 4; vst1q_f32(y, vfCDEF); y += 4; vst1q_f32(y, vfGHIJ); y += 4; vst1q_f32(y, vfKLMN); y += 4; } for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) { const float32x4_t vx = vld1q_f32(x); x += 4; const float32x4_t vz = vabsq_f32(vx); float32x4_t vn = vfmaq_f32(vmagic_bias, vz, vminus_log2e); const int32x4_t ve = vshlq_n_s32(vreinterpretq_s32_f32(vn), 17); const uint64x2_t vidx = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn), vindex_mask)); const uint64_t vidx_lo = vgetq_lane_u64(vidx, 0); const uint64_t vidx_hi = vgetq_lane_u64(vidx, 1); float32x2_t vl_lo = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx_lo]); float32x2_t vl_hi = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx_hi]); vl_lo = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx_lo >> 32)], vl_lo, 1); vl_hi = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx_hi >> 32)], vl_hi, 1); const float32x4_t vl = vcombine_f32(vl_lo, vl_hi); const float32x4_t vs = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl), ve)); vn = vsubq_f32(vn, vmagic_bias); float32x4_t vt = vfmaq_f32(vz, vn, vln2); float32x4_t vp = vmulq_f32(vt, vc2); vp = vfmsq_f32(vt, vp, vt); const float32x4_t vy = vfmsq_f32(vs, vs, vp); const float32x4_t vd = vaddq_f32(vy, vone); float32x4_t vf = vdivq_f32(vy, vd); vf = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf), vcagtq_f32(vx, vdenorm_cutoff))); const uint32x4_t vm = vcltq_f32(vx, vmovq_n_f32(0.0f)); vf = vbslq_f32(vm, vf, vsubq_f32(vone, vf)); vst1q_f32(y, vf); y += 4; } if XNN_UNLIKELY(n != 0) { const float32x4_t vx = vld1q_f32(x); const float32x4_t vz = vabsq_f32(vx); float32x4_t vn = vfmaq_f32(vmagic_bias, vz, vminus_log2e); const int32x4_t ve = vshlq_n_s32(vreinterpretq_s32_f32(vn), 17); const uint64x2_t vidx = vreinterpretq_u64_s32(vandq_s32(vreinterpretq_s32_f32(vn), vindex_mask)); const uint64_t vidx_lo = vgetq_lane_u64(vidx, 0); const uint64_t vidx_hi = vgetq_lane_u64(vidx, 1); float32x2_t vl_lo = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx_lo]); float32x2_t vl_hi = vld1_dup_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) vidx_hi]); vl_lo = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx_lo >> 32)], vl_lo, 1); vl_hi = vld1_lane_f32(&xnn_table_exp2minus_k_over_64[(uint32_t) (vidx_hi >> 32)], vl_hi, 1); const float32x4_t vl = vcombine_f32(vl_lo, vl_hi); const float32x4_t vs = vreinterpretq_f32_s32(vaddq_s32(vreinterpretq_s32_f32(vl), ve)); vn = vsubq_f32(vn, vmagic_bias); float32x4_t vt = vfmaq_f32(vz, vn, vln2); float32x4_t vp = vmulq_f32(vt, vc2); vp = vfmsq_f32(vt, vp, vt); const float32x4_t vy = vfmsq_f32(vs, vs, vp); const float32x4_t vd = vaddq_f32(vy, vone); float32x4_t vf = vdivq_f32(vy, vd); vf = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(vf), vcagtq_f32(vx, vdenorm_cutoff))); const uint32x4_t vm = vcltq_f32(vx, vmovq_n_f32(0.0f)); vf = vbslq_f32(vm, vf, vsubq_f32(vone, vf)); float32x2_t vf_lo = vget_low_f32(vf); if (n & (2 * sizeof(float))) { vst1_f32(y, vf_lo); y += 2; vf_lo = vget_high_f32(vf); } if (n & (1 * sizeof(float))) { vst1_lane_f32(y, vf_lo, 0); } } }