| // Auto-generated file. Do not edit! |
| // Template: src/f32-velu/sse-rr2-p6.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 <emmintrin.h> |
| |
| #include <xnnpack/vunary.h> |
| #include <xnnpack/common.h> |
| |
| |
| void xnn_f32_velu_ukernel__sse2_rr2_p6_x4( |
| size_t n, |
| const float* x, |
| float* y, |
| const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN |
| { |
| assert(n != 0); |
| assert(n % sizeof(float) == 0); |
| assert(x != NULL); |
| assert(y != NULL); |
| |
| const __m128 vprescale = _mm_load_ps(params->sse.prescale); |
| const __m128 valpha = _mm_load_ps(params->sse.alpha); |
| const __m128 vbeta = _mm_load_ps(params->sse.beta); |
| |
| const __m128 vsat_cutoff = _mm_set1_ps(-0x1.154246p+4f); |
| const __m128 vmagic_bias = _mm_set1_ps(0x1.8000FEp23f); |
| const __m128 vlog2e = _mm_set1_ps(0x1.715476p+0f); |
| const __m128 vminus_ln2_hi = _mm_set1_ps(-0x1.62E440p-1f); |
| const __m128 vminus_ln2_lo = _mm_set1_ps(0x1.0105C6p-21f); |
| const __m128 vc6 = _mm_set1_ps(0x1.6b7338p-10f); |
| const __m128 vc5 = _mm_set1_ps(0x1.12278Ep-7f); |
| const __m128 vc4 = _mm_set1_ps(0x1.555716p-5f); |
| const __m128 vc3 = _mm_set1_ps(0x1.5554B0p-3f); |
| const __m128 vc2 = _mm_set1_ps(0x1.FFFFFEp-2f); |
| const __m128 vone = _mm_set1_ps(1.0f); |
| |
| for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) { |
| __m128 vx = _mm_loadu_ps(x); |
| x += 4; |
| |
| const __m128 vz = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx, vprescale)); |
| |
| __m128 vn = _mm_add_ps(_mm_mul_ps(vz, vlog2e), vmagic_bias); |
| __m128 vs = _mm_castsi128_ps(_mm_slli_epi32(_mm_castps_si128(vn), 23)); |
| vn = _mm_sub_ps(vn, vmagic_bias); |
| |
| __m128 vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_hi), vz); |
| vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_lo), vt); |
| |
| __m128 vp = _mm_add_ps(_mm_mul_ps(vc6, vt), vc5); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vc4); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vc3); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vc2); |
| vp = _mm_mul_ps(vp, vt); |
| |
| vt = _mm_mul_ps(vt, vs); |
| vs = _mm_sub_ps(vs, vone); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vt); |
| const __m128 ve = _mm_mul_ps(_mm_add_ps(vp, vs), valpha); |
| |
| const __m128 vm = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx))); |
| vx = _mm_mul_ps(vx, vbeta); |
| const __m128 vy = _mm_or_ps(_mm_and_ps(ve, vm), _mm_andnot_ps(vm, vx)); |
| |
| _mm_storeu_ps(y, vy); |
| y += 4; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| __m128 vx = _mm_loadu_ps(x); |
| |
| const __m128 vz = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx, vprescale)); |
| |
| __m128 vn = _mm_add_ps(_mm_mul_ps(vz, vlog2e), vmagic_bias); |
| __m128 vs = _mm_castsi128_ps(_mm_slli_epi32(_mm_castps_si128(vn), 23)); |
| vn = _mm_sub_ps(vn, vmagic_bias); |
| |
| __m128 vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_hi), vz); |
| vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_lo), vt); |
| |
| __m128 vp = _mm_add_ps(_mm_mul_ps(vc6, vt), vc5); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vc4); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vc3); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vc2); |
| vp = _mm_mul_ps(vp, vt); |
| |
| vt = _mm_mul_ps(vt, vs); |
| vs = _mm_sub_ps(vs, vone); |
| vp = _mm_add_ps(_mm_mul_ps(vp, vt), vt); |
| const __m128 ve = _mm_mul_ps(_mm_add_ps(vp, vs), valpha); |
| |
| const __m128 vm = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx))); |
| vx = _mm_mul_ps(vx, vbeta); |
| __m128 vy = _mm_or_ps(_mm_and_ps(ve, vm), _mm_andnot_ps(vm, vx)); |
| |
| if (n & (2 * sizeof(float))) { |
| _mm_storel_pi((__m64*) y, vy); |
| vy = _mm_movehl_ps(vy, vy); |
| y += 2; |
| } |
| if (n & (1 * sizeof(float))) { |
| _mm_store_ss(y, vy); |
| } |
| } |
| } |