| // 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. |
| |
| $assert BATCH_TILE % 4 == 0 |
| $assert BATCH_TILE >= 4 |
| $ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| $SSE_HEADER = {2: "emmintrin.h", 4: "smmintrin.h"}[SSE] |
| #include <assert.h> |
| |
| #include <${SSE_HEADER}> |
| |
| #include <xnnpack/vunary.h> |
| #include <xnnpack/common.h> |
| |
| |
| $ISA = {2: "sse2", 4: "sse41"}[SSE] |
| void xnn_f32_velu_ukernel__${ISA}_rr2_p6_x${BATCH_TILE}( |
| size_t n, |
| const float* x, |
| float* y, |
| const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS |
| { |
| assert(n != 0); |
| assert(n % sizeof(float) == 0); |
| assert(x != NULL); |
| assert(y != NULL); |
| |
| const __m128 vprescale = _mm_load_ps(params->sse2_rr2_p6.prescale); |
| const __m128 valpha = _mm_load_ps(params->sse2_rr2_p6.alpha); |
| const __m128 vbeta = _mm_load_ps(params->sse2_rr2_p6.beta); |
| const __m128 vsat_cutoff = _mm_load_ps(params->sse2_rr2_p6.sat_cutoff); |
| const __m128 vmagic_bias = _mm_load_ps(params->sse2_rr2_p6.magic_bias); |
| const __m128 vlog2e = _mm_load_ps(params->sse2_rr2_p6.log2e); |
| const __m128 vminus_ln2_hi = _mm_load_ps(params->sse2_rr2_p6.minus_ln2_hi); |
| const __m128 vminus_ln2_lo = _mm_load_ps(params->sse2_rr2_p6.minus_ln2_lo); |
| const __m128 vc6 = _mm_load_ps(params->sse2_rr2_p6.c6); |
| const __m128 vc5 = _mm_load_ps(params->sse2_rr2_p6.c5); |
| const __m128 vc4 = _mm_load_ps(params->sse2_rr2_p6.c4); |
| const __m128 vc3 = _mm_load_ps(params->sse2_rr2_p6.c3); |
| const __m128 vc2 = _mm_load_ps(params->sse2_rr2_p6.c2); |
| const __m128 vone = _mm_load_ps(params->sse2_rr2_p6.one); |
| |
| $if BATCH_TILE > 4: |
| for (; n >= ${BATCH_TILE} * sizeof(float); n -= ${BATCH_TILE} * sizeof(float)) { |
| __m128 vx${ABC[0:4]} = _mm_loadu_ps(x); |
| $for N in range(4, BATCH_TILE, 4): |
| __m128 vx${ABC[N:N+4]} = _mm_loadu_ps(x + ${N}); |
| x += ${BATCH_TILE}; |
| |
| $for N in range(0, BATCH_TILE, 4): |
| const __m128 vz${ABC[N:N+4]} = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx${ABC[N:N+4]}, vprescale)); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| __m128 vn${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vz${ABC[N:N+4]}, vlog2e), vmagic_bias); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| __m128 vs${ABC[N:N+4]} = _mm_castsi128_ps(_mm_slli_epi32(_mm_castps_si128(vn${ABC[N:N+4]}), 23)); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vn${ABC[N:N+4]} = _mm_sub_ps(vn${ABC[N:N+4]}, vmagic_bias); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| __m128 vt${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vn${ABC[N:N+4]}, vminus_ln2_hi), vz${ABC[N:N+4]}); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vt${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vn${ABC[N:N+4]}, vminus_ln2_lo), vt${ABC[N:N+4]}); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| __m128 vp${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vc6, vt${ABC[N:N+4]}), vc5); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vp${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vp${ABC[N:N+4]}, vt${ABC[N:N+4]}), vc4); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vp${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vp${ABC[N:N+4]}, vt${ABC[N:N+4]}), vc3); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vp${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vp${ABC[N:N+4]}, vt${ABC[N:N+4]}), vc2); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vp${ABC[N:N+4]} = _mm_mul_ps(vp${ABC[N:N+4]}, vt${ABC[N:N+4]}); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vt${ABC[N:N+4]} = _mm_mul_ps(vt${ABC[N:N+4]}, vs${ABC[N:N+4]}); |
| vs${ABC[N:N+4]} = _mm_sub_ps(vs${ABC[N:N+4]}, vone); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vp${ABC[N:N+4]} = _mm_add_ps(_mm_mul_ps(vp${ABC[N:N+4]}, vt${ABC[N:N+4]}), vt${ABC[N:N+4]}); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| const __m128 ve${ABC[N:N+4]} = _mm_mul_ps(_mm_add_ps(vp${ABC[N:N+4]}, vs${ABC[N:N+4]}), valpha); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| $if SSE < 4: |
| const __m128 vm${ABC[N:N+4]} = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx${ABC[N:N+4]}))); |
| vx${ABC[N:N+4]} = _mm_mul_ps(vx${ABC[N:N+4]}, vbeta); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| $if SSE >= 4: |
| const __m128 vy${ABC[N:N+4]} = _mm_blendv_ps(vx${ABC[N:N+4]}, ve${ABC[N:N+4]}, vx${ABC[N:N+4]}); |
| $else: |
| const __m128 vy${ABC[N:N+4]} = _mm_or_ps(_mm_and_ps(ve${ABC[N:N+4]}, vm${ABC[N:N+4]}), _mm_andnot_ps(vm${ABC[N:N+4]}, vx${ABC[N:N+4]})); |
| |
| _mm_storeu_ps(y, vy${ABC[0:4]}); |
| $for N in range(4, BATCH_TILE, 4): |
| _mm_storeu_ps(y + ${N}, vy${ABC[N:N+4]}); |
| y += ${BATCH_TILE}; |
| } |
| 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); |
| |
| $if SSE < 4: |
| const __m128 vm = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx))); |
| vx = _mm_mul_ps(vx, vbeta); |
| $if SSE >= 4: |
| const __m128 vy = _mm_blendv_ps(vx, ve, vx); |
| $else: |
| 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); |
| |
| $if SSE < 4: |
| const __m128 vm = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx))); |
| vx = _mm_mul_ps(vx, vbeta); |
| $if SSE >= 4: |
| __m128 vy = _mm_blendv_ps(vx, ve, vx); |
| $else: |
| __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); |
| } |
| } |
| } |