| // Auto-generated file. Do not edit! |
| // Template: src/f32-vhswish/avx.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 <immintrin.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/vunary.h> |
| |
| |
| void xnn_f32_vhswish_ukernel__fma3_x8( |
| size_t n, |
| const float* x, |
| float* y, |
| const union xnn_f32_hswish_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(n != 0); |
| assert(n % sizeof(float) == 0); |
| |
| const __m256 vsixth = _mm256_load_ps(params->avx.sixth); |
| const __m256 vhalf = _mm256_load_ps(params->avx.half); |
| const __m256 vone = _mm256_load_ps(params->avx.one); |
| const __m256 vzero = _mm256_setzero_ps(); |
| |
| for (; n >= 8 * sizeof(float); n -= 8 * sizeof(float)) { |
| const __m256 vx = _mm256_loadu_ps(x); |
| x += 8; |
| __m256 vacc = _mm256_fmadd_ps(vx, vsixth, vhalf); |
| vacc = _mm256_max_ps(vacc, vzero); |
| vacc = _mm256_min_ps(vacc, vone); |
| vacc = _mm256_mul_ps(vacc, vx); |
| _mm256_storeu_ps(y, vacc); |
| y += 8; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| assert(n >= 1 * sizeof(float)); |
| assert(n <= 7 * sizeof(float)); |
| const __m256i vmask = _mm256_loadu_si256((const __m256i*) ((uintptr_t) ¶ms->avx.mask_table[7] - n)); |
| |
| const __m256 vx = _mm256_maskload_ps(x, vmask); |
| __m256 vacc = _mm256_fmadd_ps(vx, vsixth, vhalf); |
| vacc = _mm256_max_ps(vacc, vzero); |
| vacc = _mm256_min_ps(vacc, vone); |
| vacc = _mm256_mul_ps(vacc, vx); |
| |
| __m128 vacc_lo = _mm256_castps256_ps128(vacc); |
| if (n & (4 * sizeof(float))) { |
| _mm_storeu_ps(y, vacc_lo); |
| vacc_lo = _mm256_extractf128_ps(vacc, 1); |
| y += 4; |
| } |
| if (n & (2 * sizeof(float))) { |
| _mm_storel_pi((__m64*) y, vacc_lo); |
| vacc_lo = _mm_movehl_ps(vacc_lo, vacc_lo); |
| y += 2; |
| } |
| if (n & (1 * sizeof(float))) { |
| _mm_store_ss(y, vacc_lo); |
| } |
| } |
| } |