| // Auto-generated file. Do not edit! |
| // Template: src/f32-velu/wasmsimd-rr2-lut16-p3.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 <wasm_simd128.h> |
| |
| #include <xnnpack/vunary.h> |
| #include <xnnpack/common.h> |
| |
| |
| extern XNN_INTERNAL const float xnn_table_exp2minus_k_over_16[16]; |
| |
| void xnn_f32_velu_ukernel__wasmsimd_arm_rr2_lut16_p3_x16( |
| 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 v128_t vprescale = wasm_v128_load32_splat(¶ms->scalar.prescale); |
| const v128_t valpha = wasm_v128_load32_splat(¶ms->scalar.alpha); |
| const v128_t vbeta = wasm_v128_load32_splat(¶ms->scalar.beta); |
| |
| const v128_t vsat_cutoff = wasm_f32x4_const_splat(-0x1.154246p+4f); |
| const v128_t vmagic_bias = wasm_f32x4_const_splat(0x1.800000p19f); |
| const v128_t vlog2e = wasm_f32x4_const_splat(0x1.715476p+0f); |
| const v128_t vindex_mask = wasm_i32x4_const_splat(0xF); |
| const v128_t vminus_ln2_hi = wasm_f32x4_const_splat(-0x1.62E400p-1f); |
| const v128_t vminus_ln2_lo = wasm_f32x4_const_splat(-0x1.7F7D1Cp-20f); |
| const v128_t vc3 = wasm_f32x4_const_splat(0x1.55561Cp-3f); |
| const v128_t vc2 = wasm_f32x4_const_splat(0x1.0001ECp-1f); |
| const v128_t vone = wasm_f32x4_const_splat(1.0f); |
| |
| for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) { |
| v128_t vx0123 = wasm_v128_load(x); |
| v128_t vx4567 = wasm_v128_load(x + 4); |
| v128_t vx89AB = wasm_v128_load(x + 8); |
| v128_t vxCDEF = wasm_v128_load(x + 12); |
| x += 16; |
| |
| const v128_t vz0123 = wasm_f32x4_max(wasm_f32x4_mul(vx0123, vprescale), vsat_cutoff); |
| const v128_t vz4567 = wasm_f32x4_max(wasm_f32x4_mul(vx4567, vprescale), vsat_cutoff); |
| const v128_t vz89AB = wasm_f32x4_max(wasm_f32x4_mul(vx89AB, vprescale), vsat_cutoff); |
| const v128_t vzCDEF = wasm_f32x4_max(wasm_f32x4_mul(vxCDEF, vprescale), vsat_cutoff); |
| |
| v128_t vn0123 = wasm_f32x4_add(wasm_f32x4_mul(vz0123, vlog2e), vmagic_bias); |
| v128_t vn4567 = wasm_f32x4_add(wasm_f32x4_mul(vz4567, vlog2e), vmagic_bias); |
| v128_t vn89AB = wasm_f32x4_add(wasm_f32x4_mul(vz89AB, vlog2e), vmagic_bias); |
| v128_t vnCDEF = wasm_f32x4_add(wasm_f32x4_mul(vzCDEF, vlog2e), vmagic_bias); |
| |
| const v128_t vidx0123 = wasm_i32x4_shl(wasm_v128_and(vn0123, vindex_mask), 2); |
| const v128_t ven0123 = wasm_i32x4_shl(vn0123, 19); |
| const v128_t vidx4567 = wasm_i32x4_shl(wasm_v128_and(vn4567, vindex_mask), 2); |
| const v128_t ven4567 = wasm_i32x4_shl(vn4567, 19); |
| const v128_t vidx89AB = wasm_i32x4_shl(wasm_v128_and(vn89AB, vindex_mask), 2); |
| const v128_t ven89AB = wasm_i32x4_shl(vn89AB, 19); |
| const v128_t vidxCDEF = wasm_i32x4_shl(wasm_v128_and(vnCDEF, vindex_mask), 2); |
| const v128_t venCDEF = wasm_i32x4_shl(vnCDEF, 19); |
| |
| const uint64_t vidx01 = wasm_i64x2_extract_lane(vidx0123, 0); |
| const uint64_t vidx23 = wasm_i64x2_extract_lane(vidx0123, 1); |
| const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx01)); |
| const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx01 >> 32))); |
| const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx23)); |
| const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx23 >> 32))); |
| const v128_t vl0123 = wasm_f32x4_make(vl0, vl1, vl2, vl3); |
| const uint64_t vidx45 = wasm_i64x2_extract_lane(vidx4567, 0); |
| const uint64_t vidx67 = wasm_i64x2_extract_lane(vidx4567, 1); |
| const float vl4 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx45)); |
| const float vl5 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx45 >> 32))); |
| const float vl6 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx67)); |
| const float vl7 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx67 >> 32))); |
| const v128_t vl4567 = wasm_f32x4_make(vl4, vl5, vl6, vl7); |
| const uint64_t vidx89 = wasm_i64x2_extract_lane(vidx89AB, 0); |
| const uint64_t vidxAB = wasm_i64x2_extract_lane(vidx89AB, 1); |
| const float vl8 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx89)); |
| const float vl9 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx89 >> 32))); |
| const float vlA = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxAB)); |
| const float vlB = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxAB >> 32))); |
| const v128_t vl89AB = wasm_f32x4_make(vl8, vl9, vlA, vlB); |
| const uint64_t vidxCD = wasm_i64x2_extract_lane(vidxCDEF, 0); |
| const uint64_t vidxEF = wasm_i64x2_extract_lane(vidxCDEF, 1); |
| const float vlC = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxCD)); |
| const float vlD = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxCD >> 32))); |
| const float vlE = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxEF)); |
| const float vlF = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxEF >> 32))); |
| const v128_t vlCDEF = wasm_f32x4_make(vlC, vlD, vlE, vlF); |
| |
| vn0123 = wasm_f32x4_sub(vn0123, vmagic_bias); |
| v128_t vs0123 = wasm_i32x4_add(vl0123, ven0123); |
| vn4567 = wasm_f32x4_sub(vn4567, vmagic_bias); |
| v128_t vs4567 = wasm_i32x4_add(vl4567, ven4567); |
| vn89AB = wasm_f32x4_sub(vn89AB, vmagic_bias); |
| v128_t vs89AB = wasm_i32x4_add(vl89AB, ven89AB); |
| vnCDEF = wasm_f32x4_sub(vnCDEF, vmagic_bias); |
| v128_t vsCDEF = wasm_i32x4_add(vlCDEF, venCDEF); |
| |
| v128_t vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_hi), vz0123); |
| v128_t vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_hi), vz4567); |
| v128_t vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_hi), vz89AB); |
| v128_t vtCDEF = wasm_f32x4_add(wasm_f32x4_mul(vnCDEF, vminus_ln2_hi), vzCDEF); |
| |
| vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_lo), vt0123); |
| vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_lo), vt4567); |
| vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_lo), vt89AB); |
| vtCDEF = wasm_f32x4_add(wasm_f32x4_mul(vnCDEF, vminus_ln2_lo), vtCDEF); |
| |
| v128_t vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt0123), vc2); |
| v128_t vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt4567), vc2); |
| v128_t vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt89AB), vc2); |
| v128_t vpCDEF = wasm_f32x4_add(wasm_f32x4_mul(vc3, vtCDEF), vc2); |
| |
| vp0123 = wasm_f32x4_mul(vp0123, vt0123); |
| vp4567 = wasm_f32x4_mul(vp4567, vt4567); |
| vp89AB = wasm_f32x4_mul(vp89AB, vt89AB); |
| vpCDEF = wasm_f32x4_mul(vpCDEF, vtCDEF); |
| |
| vt0123 = wasm_f32x4_mul(vt0123, vs0123); |
| vs0123 = wasm_f32x4_sub(vs0123, vone); |
| vt4567 = wasm_f32x4_mul(vt4567, vs4567); |
| vs4567 = wasm_f32x4_sub(vs4567, vone); |
| vt89AB = wasm_f32x4_mul(vt89AB, vs89AB); |
| vs89AB = wasm_f32x4_sub(vs89AB, vone); |
| vtCDEF = wasm_f32x4_mul(vtCDEF, vsCDEF); |
| vsCDEF = wasm_f32x4_sub(vsCDEF, vone); |
| |
| vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vp0123, vt0123), vt0123); |
| vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vp4567, vt4567), vt4567); |
| vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vp89AB, vt89AB), vt89AB); |
| vpCDEF = wasm_f32x4_add(wasm_f32x4_mul(vpCDEF, vtCDEF), vtCDEF); |
| |
| const v128_t ve0123 = wasm_f32x4_mul(wasm_f32x4_add(vp0123, vs0123), valpha); |
| const v128_t ve4567 = wasm_f32x4_mul(wasm_f32x4_add(vp4567, vs4567), valpha); |
| const v128_t ve89AB = wasm_f32x4_mul(wasm_f32x4_add(vp89AB, vs89AB), valpha); |
| const v128_t veCDEF = wasm_f32x4_mul(wasm_f32x4_add(vpCDEF, vsCDEF), valpha); |
| |
| const v128_t vsignm0123 = wasm_i32x4_shr(vx0123, 31); |
| vx0123 = wasm_f32x4_mul(vx0123, vbeta); |
| const v128_t vsignm4567 = wasm_i32x4_shr(vx4567, 31); |
| vx4567 = wasm_f32x4_mul(vx4567, vbeta); |
| const v128_t vsignm89AB = wasm_i32x4_shr(vx89AB, 31); |
| vx89AB = wasm_f32x4_mul(vx89AB, vbeta); |
| const v128_t vsignmCDEF = wasm_i32x4_shr(vxCDEF, 31); |
| vxCDEF = wasm_f32x4_mul(vxCDEF, vbeta); |
| |
| const v128_t vy0123 = wasm_v128_bitselect(ve0123, vx0123, vsignm0123); |
| const v128_t vy4567 = wasm_v128_bitselect(ve4567, vx4567, vsignm4567); |
| const v128_t vy89AB = wasm_v128_bitselect(ve89AB, vx89AB, vsignm89AB); |
| const v128_t vyCDEF = wasm_v128_bitselect(veCDEF, vxCDEF, vsignmCDEF); |
| |
| wasm_v128_store(y, vy0123); |
| wasm_v128_store(y + 4, vy4567); |
| wasm_v128_store(y + 8, vy89AB); |
| wasm_v128_store(y + 12, vyCDEF); |
| y += 16; |
| } |
| for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) { |
| v128_t vx = wasm_v128_load(x); |
| x += 4; |
| |
| const v128_t vz = wasm_f32x4_max(wasm_f32x4_mul(vx, vprescale), vsat_cutoff); |
| |
| v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias); |
| const v128_t vidx = wasm_i32x4_shl(wasm_v128_and(vn, vindex_mask), 2); |
| const v128_t ven = wasm_i32x4_shl(vn, 19); |
| |
| const uint64_t vidx_lo = wasm_i64x2_extract_lane(vidx, 0); |
| const uint64_t vidx_hi = wasm_i64x2_extract_lane(vidx, 1); |
| const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo)); |
| const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32))); |
| const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi)); |
| const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32))); |
| const v128_t vl = wasm_f32x4_make(vl0, vl1, vl2, vl3); |
| |
| v128_t vs = wasm_i32x4_add(vl, ven); |
| vn = wasm_f32x4_sub(vn, vmagic_bias); |
| |
| v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz); |
| vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt); |
| |
| v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt), vc2); |
| vp = wasm_f32x4_mul(vp, vt); |
| |
| vt = wasm_f32x4_mul(vt, vs); |
| vs = wasm_f32x4_sub(vs, vone); |
| vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt); |
| const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha); |
| |
| const v128_t vsignm = wasm_i32x4_shr(vx, 31); |
| vx = wasm_f32x4_mul(vx, vbeta); |
| const v128_t vy = wasm_v128_bitselect(ve, vx, vsignm); |
| |
| wasm_v128_store(y, vy); |
| y += 4; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| v128_t vx = wasm_v128_load(x); |
| |
| const v128_t vz = wasm_f32x4_max(wasm_f32x4_mul(vx, vprescale), vsat_cutoff); |
| |
| v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias); |
| const v128_t vidx = wasm_i32x4_shl(wasm_v128_and(vn, vindex_mask), 2); |
| const v128_t ven = wasm_i32x4_shl(vn, 19); |
| |
| const uint64_t vidx_lo = wasm_i64x2_extract_lane(vidx, 0); |
| const uint64_t vidx_hi = wasm_i64x2_extract_lane(vidx, 1); |
| const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo)); |
| const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32))); |
| const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi)); |
| const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32))); |
| const v128_t vl = wasm_f32x4_make(vl0, vl1, vl2, vl3); |
| |
| v128_t vs = wasm_i32x4_add(vl, ven); |
| vn = wasm_f32x4_sub(vn, vmagic_bias); |
| |
| v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz); |
| vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt); |
| |
| v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt), vc2); |
| vp = wasm_f32x4_mul(vp, vt); |
| |
| vt = wasm_f32x4_mul(vt, vs); |
| vs = wasm_f32x4_sub(vs, vone); |
| vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt); |
| const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha); |
| |
| const v128_t vsignm = wasm_i32x4_shr(vx, 31); |
| vx = wasm_f32x4_mul(vx, vbeta); |
| v128_t vy = wasm_v128_bitselect(ve, vx, vsignm); |
| |
| if (n & (2 * sizeof(float))) { |
| *((double*) y) = wasm_f64x2_extract_lane(vy, 0); |
| vy = wasm_v32x4_shuffle(vy, vy, 2, 3, 2, 3); |
| y += 2; |
| } |
| if (n & (1 * sizeof(float))) { |
| *y = wasm_f32x4_extract_lane(vy, 0); |
| } |
| } |
| } |