| // Auto-generated file. Do not edit! |
| // Template: src/f32-velu/scalar-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 <math.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/vunary.h> |
| |
| #include <fp16/bitcasts.h> |
| |
| |
| void xnn_f32_velu_ukernel__wasm_rr2_p6_x6( |
| size_t n, |
| const float* x, |
| float* y, |
| const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(n % sizeof(float) == 0); |
| |
| const float vprescale = params->scalar_rr2_p6.prescale; |
| const float valpha = params->scalar_rr2_p6.alpha; |
| const float vbeta = params->scalar_rr2_p6.beta; |
| const float vmagic_bias = params->scalar_rr2_p6.magic_bias; |
| const float vlog2e = params->scalar_rr2_p6.log2e; |
| const float vsat_cutoff = params->scalar_rr2_p6.sat_cutoff; |
| const float vminus_ln2_hi = params->scalar_rr2_p6.minus_ln2_hi; |
| const float vminus_ln2_lo = params->scalar_rr2_p6.minus_ln2_lo; |
| const float vc6 = params->scalar_rr2_p6.c6; |
| const float vc5 = params->scalar_rr2_p6.c5; |
| const float vc4 = params->scalar_rr2_p6.c4; |
| const float vc3 = params->scalar_rr2_p6.c3; |
| const float vc2 = params->scalar_rr2_p6.c2; |
| const float vone = params->scalar_rr2_p6.one; |
| |
| for (; n >= 6 * sizeof(float); n -= 6 * sizeof(float)) { |
| float vx0 = x[0]; |
| float vx1 = x[1]; |
| float vx2 = x[2]; |
| float vx3 = x[3]; |
| float vx4 = x[4]; |
| float vx5 = x[5]; |
| x += 6; |
| |
| const float vz0 = __builtin_wasm_min_f32(__builtin_wasm_max_f32(vx0 * vprescale, vsat_cutoff), 0.0f); |
| const float vz1 = __builtin_wasm_min_f32(__builtin_wasm_max_f32(vx1 * vprescale, vsat_cutoff), 0.0f); |
| const float vz2 = __builtin_wasm_min_f32(__builtin_wasm_max_f32(vx2 * vprescale, vsat_cutoff), 0.0f); |
| const float vz3 = __builtin_wasm_min_f32(__builtin_wasm_max_f32(vx3 * vprescale, vsat_cutoff), 0.0f); |
| const float vz4 = __builtin_wasm_min_f32(__builtin_wasm_max_f32(vx4 * vprescale, vsat_cutoff), 0.0f); |
| const float vz5 = __builtin_wasm_min_f32(__builtin_wasm_max_f32(vx5 * vprescale, vsat_cutoff), 0.0f); |
| |
| float vn0 = vz0 * vlog2e + vmagic_bias; |
| float vn1 = vz1 * vlog2e + vmagic_bias; |
| float vn2 = vz2 * vlog2e + vmagic_bias; |
| float vn3 = vz3 * vlog2e + vmagic_bias; |
| float vn4 = vz4 * vlog2e + vmagic_bias; |
| float vn5 = vz5 * vlog2e + vmagic_bias; |
| |
| float vs0 = fp32_from_bits(fp32_to_bits(vn0) << 23); |
| vn0 -= vmagic_bias; |
| float vs1 = fp32_from_bits(fp32_to_bits(vn1) << 23); |
| vn1 -= vmagic_bias; |
| float vs2 = fp32_from_bits(fp32_to_bits(vn2) << 23); |
| vn2 -= vmagic_bias; |
| float vs3 = fp32_from_bits(fp32_to_bits(vn3) << 23); |
| vn3 -= vmagic_bias; |
| float vs4 = fp32_from_bits(fp32_to_bits(vn4) << 23); |
| vn4 -= vmagic_bias; |
| float vs5 = fp32_from_bits(fp32_to_bits(vn5) << 23); |
| vn5 -= vmagic_bias; |
| |
| float vt0 = vn0 * vminus_ln2_hi + vz0; |
| float vt1 = vn1 * vminus_ln2_hi + vz1; |
| float vt2 = vn2 * vminus_ln2_hi + vz2; |
| float vt3 = vn3 * vminus_ln2_hi + vz3; |
| float vt4 = vn4 * vminus_ln2_hi + vz4; |
| float vt5 = vn5 * vminus_ln2_hi + vz5; |
| |
| vt0 = vn0 * vminus_ln2_lo + vt0; |
| vt1 = vn1 * vminus_ln2_lo + vt1; |
| vt2 = vn2 * vminus_ln2_lo + vt2; |
| vt3 = vn3 * vminus_ln2_lo + vt3; |
| vt4 = vn4 * vminus_ln2_lo + vt4; |
| vt5 = vn5 * vminus_ln2_lo + vt5; |
| |
| |
| float vp0 = vc6 * vt0 + vc5; |
| float vp1 = vc6 * vt1 + vc5; |
| float vp2 = vc6 * vt2 + vc5; |
| float vp3 = vc6 * vt3 + vc5; |
| float vp4 = vc6 * vt4 + vc5; |
| float vp5 = vc6 * vt5 + vc5; |
| |
| vp0 = vp0 * vt0 + vc4; |
| vp1 = vp1 * vt1 + vc4; |
| vp2 = vp2 * vt2 + vc4; |
| vp3 = vp3 * vt3 + vc4; |
| vp4 = vp4 * vt4 + vc4; |
| vp5 = vp5 * vt5 + vc4; |
| |
| vp0 = vp0 * vt0 + vc3; |
| vp1 = vp1 * vt1 + vc3; |
| vp2 = vp2 * vt2 + vc3; |
| vp3 = vp3 * vt3 + vc3; |
| vp4 = vp4 * vt4 + vc3; |
| vp5 = vp5 * vt5 + vc3; |
| |
| vp0 = vp0 * vt0 + vc2; |
| vp1 = vp1 * vt1 + vc2; |
| vp2 = vp2 * vt2 + vc2; |
| vp3 = vp3 * vt3 + vc2; |
| vp4 = vp4 * vt4 + vc2; |
| vp5 = vp5 * vt5 + vc2; |
| |
| vp0 *= vt0; |
| vp1 *= vt1; |
| vp2 *= vt2; |
| vp3 *= vt3; |
| vp4 *= vt4; |
| vp5 *= vt5; |
| |
| vt0 *= vs0; |
| vs0 -= vone; |
| vt1 *= vs1; |
| vs1 -= vone; |
| vt2 *= vs2; |
| vs2 -= vone; |
| vt3 *= vs3; |
| vs3 -= vone; |
| vt4 *= vs4; |
| vs4 -= vone; |
| vt5 *= vs5; |
| vs5 -= vone; |
| |
| vp0 = vp0 * vt0 + vt0; |
| vp1 = vp1 * vt1 + vt1; |
| vp2 = vp2 * vt2 + vt2; |
| vp3 = vp3 * vt3 + vt3; |
| vp4 = vp4 * vt4 + vt4; |
| vp5 = vp5 * vt5 + vt5; |
| |
| const float ve0 = (vp0 + vs0) * valpha; |
| float vy0 = __builtin_wasm_max_f32(vx0 * vbeta, 0.0f); |
| const float ve1 = (vp1 + vs1) * valpha; |
| float vy1 = __builtin_wasm_max_f32(vx1 * vbeta, 0.0f); |
| const float ve2 = (vp2 + vs2) * valpha; |
| float vy2 = __builtin_wasm_max_f32(vx2 * vbeta, 0.0f); |
| const float ve3 = (vp3 + vs3) * valpha; |
| float vy3 = __builtin_wasm_max_f32(vx3 * vbeta, 0.0f); |
| const float ve4 = (vp4 + vs4) * valpha; |
| float vy4 = __builtin_wasm_max_f32(vx4 * vbeta, 0.0f); |
| const float ve5 = (vp5 + vs5) * valpha; |
| float vy5 = __builtin_wasm_max_f32(vx5 * vbeta, 0.0f); |
| |
| vy0 += __builtin_wasm_min_f32(ve0, 0.0f); |
| vy1 += __builtin_wasm_min_f32(ve1, 0.0f); |
| vy2 += __builtin_wasm_min_f32(ve2, 0.0f); |
| vy3 += __builtin_wasm_min_f32(ve3, 0.0f); |
| vy4 += __builtin_wasm_min_f32(ve4, 0.0f); |
| vy5 += __builtin_wasm_min_f32(ve5, 0.0f); |
| |
| y[0] = vy0; |
| y[1] = vy1; |
| y[2] = vy2; |
| y[3] = vy3; |
| y[4] = vy4; |
| y[5] = vy5; |
| y += 6; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| do { |
| float vx = *x++; |
| |
| const float vz = __builtin_wasm_min_f32(__builtin_wasm_max_f32(vx * vprescale, vsat_cutoff), 0.0f); |
| |
| float vn = vz * vlog2e + vmagic_bias; |
| float vs = fp32_from_bits(fp32_to_bits(vn) << 23); |
| vn -= vmagic_bias; |
| |
| float vt = vn * vminus_ln2_hi + vz; |
| vt = vn * vminus_ln2_lo + vt; |
| |
| |
| float vp = vc6 * vt + vc5; |
| vp = vp * vt + vc4; |
| vp = vp * vt + vc3; |
| vp = vp * vt + vc2; |
| vp *= vt; |
| |
| vt *= vs; |
| vs -= vone; |
| vp = vp * vt + vt; |
| const float ve = (vp + vs) * valpha; |
| |
| float vy = __builtin_wasm_max_f32(vx * vbeta, 0.0f); |
| vy += __builtin_wasm_min_f32(ve, 0.0f); |
| |
| *y++ = vy; |
| |
| n -= sizeof(float); |
| } while (n != 0); |
| } |
| } |