| // 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. |
| |
| $assert BATCH_TILE % 4 == 0 |
| $assert BATCH_TILE >= 4 |
| $ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| #include <assert.h> |
| |
| #include <psimd.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/vbinary.h> |
| |
| |
| void xnn_f32_hswish_ukernel__psimd_x${BATCH_TILE}( |
| size_t n, |
| const float* x, |
| float* y, |
| const union xnn_f32_hswish_params params[restrict static 1]) |
| { |
| assert(n != 0); |
| assert(n % sizeof(float) == 0); |
| |
| const psimd_f32 vsixth = psimd_load_splat_f32(¶ms->scalar.sixth); |
| const psimd_f32 vhalf = psimd_load_splat_f32(¶ms->scalar.half); |
| const psimd_f32 vone = psimd_load_splat_f32(¶ms->scalar.one); |
| const psimd_f32 vzero = psimd_splat_f32(0.0f); |
| |
| for (; n >= ${BATCH_TILE} * sizeof(float); n -= ${BATCH_TILE} * sizeof(float)) { |
| const psimd_f32 vx${ABC[0:4]} = psimd_load_f32(x); |
| $for N in range(4, BATCH_TILE, 4): |
| const psimd_f32 vx${ABC[N:N+4]} = psimd_load_f32(x + ${N}); |
| x += ${BATCH_TILE}; |
| |
| $for N in range(0, BATCH_TILE, 4): |
| psimd_f32 vacc${ABC[N:N+4]} = psimd_qfma_f32(vhalf, vx${ABC[N:N+4]}, vsixth); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vacc${ABC[N:N+4]} = psimd_max_f32(vacc${ABC[N:N+4]}, vzero); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vacc${ABC[N:N+4]} = psimd_min_f32(vacc${ABC[N:N+4]}, vone); |
| |
| $for N in range(0, BATCH_TILE, 4): |
| vacc${ABC[N:N+4]} = psimd_mul_f32(vacc${ABC[N:N+4]}, vx${ABC[N:N+4]}); |
| |
| psimd_store_f32(y, vacc${ABC[0:4]}); |
| $for N in range(4, BATCH_TILE, 4): |
| psimd_store_f32(y + ${N}, vacc${ABC[N:N+4]}); |
| y += ${BATCH_TILE}; |
| } |
| $if BATCH_TILE >= 4: |
| for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) { |
| const psimd_f32 vx0123 = psimd_load_f32(x); |
| x += 4; |
| psimd_f32 vacc0123 = psimd_qfma_f32(vhalf, vx0123, vsixth); |
| vacc0123 = psimd_max_f32(vacc0123, vzero); |
| vacc0123 = psimd_min_f32(vacc0123, vone); |
| vacc0123 = psimd_mul_f32(vacc0123, vx0123); |
| psimd_store_f32(y, vacc0123); |
| y += 4; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| const psimd_f32 vx0123 = psimd_load_f32(x); |
| psimd_f32 vacc0123 = psimd_qfma_f32(vhalf, vx0123, vsixth); |
| vacc0123 = psimd_max_f32(vacc0123, vzero); |
| vacc0123 = psimd_min_f32(vacc0123, vone); |
| vacc0123 = psimd_mul_f32(vacc0123, vx0123); |
| |
| if (n & (2 * sizeof(float))) { |
| psimd_store2_f32(y, vacc0123); |
| vacc0123 = psimd_concat_hi_f32(vacc0123, vacc0123); |
| y += 2; |
| } |
| if (n & (1 * sizeof(float))) { |
| psimd_store1_f32(y, vacc0123); |
| } |
| } |
| } |