| // Auto-generated file. Do not edit! |
| // Template: src/f32-sigmoid/neon-lut2048-p1.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 <assert.h> |
| |
| #include <arm_neon.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/vunary.h> |
| |
| |
| extern XNN_INTERNAL const float xnn_table_exp2minus_k_over_2048[2048]; |
| |
| void xnn_f32_sigmoid_ukernel__neonfma_rr1_lut2048_p1_nr2recps_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(0x1.800000p12f); |
| const float32x4_t vminus_log2e = vmovq_n_f32(-0x1.715476p0f); |
| const int32x4_t vindex_mask = vmovq_n_s32(INT32_C(0x7FF)); |
| const float32x4_t vln2 = vmovq_n_f32(0x1.62E43p-1f); |
| const float32x4_t vc1 = vmovq_n_f32(-0x1.FFFFFEp-1f); |
| 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), 12); |
| const int32x4_t ve4567 = vshlq_n_s32(vreinterpretq_s32_f32(vn4567), 12); |
| const int32x4_t ve89AB = vshlq_n_s32(vreinterpretq_s32_f32(vn89AB), 12); |
| const int32x4_t veCDEF = vshlq_n_s32(vreinterpretq_s32_f32(vnCDEF), 12); |
| const int32x4_t veGHIJ = vshlq_n_s32(vreinterpretq_s32_f32(vnGHIJ), 12); |
| const int32x4_t veKLMN = vshlq_n_s32(vreinterpretq_s32_f32(vnKLMN), 12); |
| |
| 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_2048[(uint32_t) vidx01]); |
| float32x2_t vl23 = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(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_2048[(uint32_t) vidx45]); |
| float32x2_t vl67 = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(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_2048[(uint32_t) vidx89]); |
| float32x2_t vlAB = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(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_2048[(uint32_t) vidxCD]); |
| float32x2_t vlEF = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(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_2048[(uint32_t) vidxGH]); |
| float32x2_t vlIJ = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(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_2048[(uint32_t) vidxKL]); |
| float32x2_t vlMN = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) vidxMN]); |
| |
| vl01 = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidx01 >> 32)], vl01, 1); |
| vl23 = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidx23 >> 32)], vl23, 1); |
| const float32x4_t vl0123 = vcombine_f32(vl01, vl23); |
| vl45 = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidx45 >> 32)], vl45, 1); |
| vl67 = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidx67 >> 32)], vl67, 1); |
| const float32x4_t vl4567 = vcombine_f32(vl45, vl67); |
| vl89 = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidx89 >> 32)], vl89, 1); |
| vlAB = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidxAB >> 32)], vlAB, 1); |
| const float32x4_t vl89AB = vcombine_f32(vl89, vlAB); |
| vlCD = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidxCD >> 32)], vlCD, 1); |
| vlEF = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidxEF >> 32)], vlEF, 1); |
| const float32x4_t vlCDEF = vcombine_f32(vlCD, vlEF); |
| vlGH = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidxGH >> 32)], vlGH, 1); |
| vlIJ = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidxIJ >> 32)], vlIJ, 1); |
| const float32x4_t vlGHIJ = vcombine_f32(vlGH, vlIJ); |
| vlKL = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidxKL >> 32)], vlKL, 1); |
| vlMN = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(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); |
| |
| const float32x4_t vp0123 = vmulq_f32(vt0123, vc1); |
| const float32x4_t vp4567 = vmulq_f32(vt4567, vc1); |
| const float32x4_t vp89AB = vmulq_f32(vt89AB, vc1); |
| const float32x4_t vpCDEF = vmulq_f32(vtCDEF, vc1); |
| const float32x4_t vpGHIJ = vmulq_f32(vtGHIJ, vc1); |
| const float32x4_t vpKLMN = vmulq_f32(vtKLMN, vc1); |
| |
| const float32x4_t vy0123 = vfmaq_f32(vs0123, vs0123, vp0123); |
| const float32x4_t vy4567 = vfmaq_f32(vs4567, vs4567, vp4567); |
| const float32x4_t vy89AB = vfmaq_f32(vs89AB, vs89AB, vp89AB); |
| const float32x4_t vyCDEF = vfmaq_f32(vsCDEF, vsCDEF, vpCDEF); |
| const float32x4_t vyGHIJ = vfmaq_f32(vsGHIJ, vsGHIJ, vpGHIJ); |
| const float32x4_t vyKLMN = vfmaq_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 vr0123 = vrecpeq_f32(vd0123); |
| float32x4_t vr4567 = vrecpeq_f32(vd4567); |
| float32x4_t vr89AB = vrecpeq_f32(vd89AB); |
| float32x4_t vrCDEF = vrecpeq_f32(vdCDEF); |
| float32x4_t vrGHIJ = vrecpeq_f32(vdGHIJ); |
| float32x4_t vrKLMN = vrecpeq_f32(vdKLMN); |
| |
| vr0123 = vmulq_f32(vr0123, vrecpsq_f32(vr0123, vd0123)); |
| vr4567 = vmulq_f32(vr4567, vrecpsq_f32(vr4567, vd4567)); |
| vr89AB = vmulq_f32(vr89AB, vrecpsq_f32(vr89AB, vd89AB)); |
| vrCDEF = vmulq_f32(vrCDEF, vrecpsq_f32(vrCDEF, vdCDEF)); |
| vrGHIJ = vmulq_f32(vrGHIJ, vrecpsq_f32(vrGHIJ, vdGHIJ)); |
| vrKLMN = vmulq_f32(vrKLMN, vrecpsq_f32(vrKLMN, vdKLMN)); |
| |
| vr0123 = vmulq_f32(vr0123, vrecpsq_f32(vr0123, vd0123)); |
| vr4567 = vmulq_f32(vr4567, vrecpsq_f32(vr4567, vd4567)); |
| vr89AB = vmulq_f32(vr89AB, vrecpsq_f32(vr89AB, vd89AB)); |
| vrCDEF = vmulq_f32(vrCDEF, vrecpsq_f32(vrCDEF, vdCDEF)); |
| vrGHIJ = vmulq_f32(vrGHIJ, vrecpsq_f32(vrGHIJ, vdGHIJ)); |
| vrKLMN = vmulq_f32(vrKLMN, vrecpsq_f32(vrKLMN, vdKLMN)); |
| |
| float32x4_t vf0123 = vmulq_f32(vy0123, vr0123); |
| float32x4_t vf4567 = vmulq_f32(vy4567, vr4567); |
| float32x4_t vf89AB = vmulq_f32(vy89AB, vr89AB); |
| float32x4_t vfCDEF = vmulq_f32(vyCDEF, vrCDEF); |
| float32x4_t vfGHIJ = vmulq_f32(vyGHIJ, vrGHIJ); |
| float32x4_t vfKLMN = vmulq_f32(vyKLMN, vrKLMN); |
| |
| 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), 12); |
| |
| 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_2048[(uint32_t) vidx_lo]); |
| float32x2_t vl_hi = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) vidx_hi]); |
| vl_lo = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidx_lo >> 32)], vl_lo, 1); |
| vl_hi = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(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); |
| |
| const float32x4_t vp = vmulq_f32(vt, vc1); |
| |
| const float32x4_t vy = vfmaq_f32(vs, vs, vp); |
| const float32x4_t vd = vaddq_f32(vy, vone); |
| |
| float32x4_t vr = vrecpeq_f32(vd); |
| vr = vmulq_f32(vr, vrecpsq_f32(vr, vd)); |
| vr = vmulq_f32(vr, vrecpsq_f32(vr, vd)); |
| |
| float32x4_t vf = vmulq_f32(vy, vr); |
| 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), 12); |
| |
| 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_2048[(uint32_t) vidx_lo]); |
| float32x2_t vl_hi = vld1_dup_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) vidx_hi]); |
| vl_lo = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(uint32_t) (vidx_lo >> 32)], vl_lo, 1); |
| vl_hi = vld1_lane_f32(&xnn_table_exp2minus_k_over_2048[(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); |
| |
| const float32x4_t vp = vmulq_f32(vt, vc1); |
| |
| const float32x4_t vy = vfmaq_f32(vs, vs, vp); |
| const float32x4_t vd = vaddq_f32(vy, vone); |
| |
| float32x4_t vr = vrecpeq_f32(vd); |
| vr = vmulq_f32(vr, vrecpsq_f32(vr, vd)); |
| vr = vmulq_f32(vr, vrecpsq_f32(vr, vd)); |
| |
| float32x4_t vf = vmulq_f32(vy, vr); |
| 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); |
| } |
| } |
| } |