// Auto-generated file. Do not edit! // Template: src/f16-vsigmoid/neonfp16arith.c.in // Generator: tools/xngen // // Copyright 2022 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 "xnnpack/common.h" #include "xnnpack/vunary.h" void xnn_f16_vsigmoid_ukernel__neonfp16arith_rr2_p2_nr1recps_u16( size_t batch, const xnn_float16* input, xnn_float16* output, const struct xnn_f16_default_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS { assert(batch != 0); assert(batch % sizeof(uint16_t) == 0); assert(input != NULL); assert(output != NULL); const float16x8_t vmagic_bias = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0x660F))); // 0x1.83Cp+10h const float16x8_t vminus_log2e = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0xBDC5))); // -0x1.714p+0h const float16x8_t vln2_hi = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0x398C))); // 0x1.630p-1h const float16x8_t vln2_lo = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0x8AF4))); // -0x1.BD0p-13h const float16x8_t vc2 = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0x37F9))); // 0x1.FE4p-2h const float16x8_t vc1 = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0xBC0E))); // -0x1.038p+0h const float16x8_t vone = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0x3C00))); // 1.0h const float16x8_t vdenorm_cutoff = vreinterpretq_f16_u16(vmovq_n_u16(UINT16_C(0xC8DA))); // -0x1.368p+3h XNN_FORCE_REALIZATION(vmagic_bias); XNN_FORCE_REALIZATION(vminus_log2e); XNN_FORCE_REALIZATION(vln2_hi); XNN_FORCE_REALIZATION(vln2_lo); XNN_FORCE_REALIZATION(vc2); XNN_FORCE_REALIZATION(vc1); XNN_FORCE_REALIZATION(vone); XNN_FORCE_REALIZATION(vdenorm_cutoff); const uint16_t* i = (const uint16_t*) input; uint16_t* o = (uint16_t*) output; for (; batch >= 16 * sizeof(uint16_t); batch -= 16 * sizeof(uint16_t)) { const float16x8_t vx0 = vreinterpretq_f16_u16(vld1q_u16(i)); i += 8; const float16x8_t vx1 = vreinterpretq_f16_u16(vld1q_u16(i)); i += 8; const float16x8_t vz0 = vabsq_f16(vx0); const float16x8_t vz1 = vabsq_f16(vx1); float16x8_t vn0 = vfmaq_f16(vmagic_bias, vz0, vminus_log2e); float16x8_t vn1 = vfmaq_f16(vmagic_bias, vz1, vminus_log2e); const float16x8_t vs0 = vreinterpretq_f16_s16(vshlq_n_s16(vreinterpretq_s16_f16(vn0), 10)); const float16x8_t vs1 = vreinterpretq_f16_s16(vshlq_n_s16(vreinterpretq_s16_f16(vn1), 10)); vn0 = vsubq_f16(vn0, vmagic_bias); vn1 = vsubq_f16(vn1, vmagic_bias); float16x8_t vt0 = vfmaq_f16(vz0, vn0, vln2_hi); float16x8_t vt1 = vfmaq_f16(vz1, vn1, vln2_hi); vt0 = vfmaq_f16(vt0, vn0, vln2_lo); vt1 = vfmaq_f16(vt1, vn1, vln2_lo); const float16x8_t vp0 = vfmaq_f16(vc1, vc2, vt0); const float16x8_t vp1 = vfmaq_f16(vc1, vc2, vt1); vt0 = vmulq_f16(vt0, vs0); vt1 = vmulq_f16(vt1, vs1); const float16x8_t ve0 = vfmaq_f16(vs0, vp0, vt0); const float16x8_t ve1 = vfmaq_f16(vs1, vp1, vt1); const float16x8_t vd0 = vaddq_f16(ve0, vone); const float16x8_t vd1 = vaddq_f16(ve1, vone); float16x8_t vr0 = vrecpeq_f16(vd0); float16x8_t vr1 = vrecpeq_f16(vd1); const float16x8_t vadj0 = vrecpsq_f16(vr0, vd0); const float16x8_t vadj1 = vrecpsq_f16(vr1, vd1); vr0 = vmulq_f16(vr0, vadj0); vr1 = vmulq_f16(vr1, vadj1); float16x8_t vf0 = vmulq_f16(ve0, vr0); float16x8_t vf1 = vmulq_f16(ve1, vr1); vf0 = vreinterpretq_f16_u16(vbicq_u16(vreinterpretq_u16_f16(vf0), vcagtq_f16(vx0, vdenorm_cutoff))); vf1 = vreinterpretq_f16_u16(vbicq_u16(vreinterpretq_u16_f16(vf1), vcagtq_f16(vx1, vdenorm_cutoff))); const uint16x8_t vm0 = vcltq_f16(vx0, vreinterpretq_f16_u16(vmovq_n_u16(0))); const uint16x8_t vm1 = vcltq_f16(vx1, vreinterpretq_f16_u16(vmovq_n_u16(0))); vf0 = vbslq_f16(vm0, vf0, vsubq_f16(vone, vf0)); vf1 = vbslq_f16(vm1, vf1, vsubq_f16(vone, vf1)); vst1q_u16(o, vreinterpretq_u16_f16(vf0)); o += 8; vst1q_u16(o, vreinterpretq_u16_f16(vf1)); o += 8; } for (; batch >= 8 * sizeof(uint16_t); batch -= 8 * sizeof(uint16_t)) { const float16x8_t vx = vreinterpretq_f16_u16(vld1q_u16(i)); i += 8; const float16x8_t vz = vabsq_f16(vx); float16x8_t vn = vfmaq_f16(vmagic_bias, vz, vminus_log2e); const float16x8_t vs = vreinterpretq_f16_s16(vshlq_n_s16(vreinterpretq_s16_f16(vn), 10)); vn = vsubq_f16(vn, vmagic_bias); float16x8_t vt = vfmaq_f16(vz, vn, vln2_hi); vt = vfmaq_f16(vt, vn, vln2_lo); const float16x8_t vp = vfmaq_f16(vc1, vc2, vt); vt = vmulq_f16(vt, vs); const float16x8_t ve = vfmaq_f16(vs, vp, vt); const float16x8_t vd = vaddq_f16(ve, vone); float16x8_t vr = vrecpeq_f16(vd); const float16x8_t vadj = vrecpsq_f16(vr, vd); vr = vmulq_f16(vr, vadj); float16x8_t vf = vmulq_f16(ve, vr); vf = vreinterpretq_f16_u16(vbicq_u16(vreinterpretq_u16_f16(vf), vcagtq_f16(vx, vdenorm_cutoff))); const uint16x8_t vm = vcltq_f16(vx, vreinterpretq_f16_u16(vmovq_n_u16(0))); vf = vbslq_f16(vm, vf, vsubq_f16(vone, vf)); vst1q_u16(o, vreinterpretq_u16_f16(vf)); o += 8; } if XNN_UNLIKELY(batch != 0) { const float16x8_t vx = vreinterpretq_f16_u16(vld1q_u16(i)); const float16x8_t vz = vabsq_f16(vx); float16x8_t vn = vfmaq_f16(vmagic_bias, vz, vminus_log2e); const float16x8_t vs = vreinterpretq_f16_s16(vshlq_n_s16(vreinterpretq_s16_f16(vn), 10)); vn = vsubq_f16(vn, vmagic_bias); float16x8_t vt = vfmaq_f16(vz, vn, vln2_hi); vt = vfmaq_f16(vt, vn, vln2_lo); const float16x8_t vp = vfmaq_f16(vc1, vc2, vt); vt = vmulq_f16(vt, vs); const float16x8_t ve = vfmaq_f16(vs, vp, vt); const float16x8_t vd = vaddq_f16(ve, vone); float16x8_t vr = vrecpeq_f16(vd); const float16x8_t vadj = vrecpsq_f16(vr, vd); vr = vmulq_f16(vr, vadj); float16x8_t vf = vmulq_f16(ve, vr); vf = vreinterpretq_f16_u16(vbicq_u16(vreinterpretq_u16_f16(vf), vcagtq_f16(vx, vdenorm_cutoff))); const uint16x8_t vm = vcltq_f16(vx, vreinterpretq_f16_u16(vmovq_n_u16(0))); vf = vbslq_f16(vm, vf, vsubq_f16(vone, vf)); float16x4_t vf_lo = vget_low_f16(vf); if (batch & (4 * sizeof(uint16_t))) { vst1_u16(o, vreinterpret_u16_f16(vf_lo)); o += 4; vf_lo = vget_high_f16(vf); } if (batch & (2 * sizeof(uint16_t))) { vst1_lane_u32((void*) o, vreinterpret_u32_f16(vf_lo), 0); o += 2; vf_lo = vext_f16(vf_lo, vf_lo, 2); } if (batch & (1 * sizeof(uint16_t))) { vst1_lane_u16(o, vreinterpret_u16_f16(vf_lo), 0); } } }