1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vlrelu/wasmsimd-bitselect.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2020 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9
10 #include <assert.h>
11
12 #include <wasm_simd128.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/vunary.h>
16
17
xnn_f32_vlrelu_ukernel__wasmsimd_bitselect_x4(size_t n,const float * x,float * y,const union xnn_f32_lrelu_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f32_vlrelu_ukernel__wasmsimd_bitselect_x4(
19 size_t n,
20 const float* x,
21 float* y,
22 const union xnn_f32_lrelu_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
23 {
24 assert(n != 0);
25 assert(n % sizeof(float) == 0);
26
27 const v128_t vslope = wasm_v128_load64_splat(params->wasmsimd.slope);
28 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
29 const v128_t vx = wasm_v128_load(x);
30 x += 4;
31 v128_t vacc = wasm_f32x4_mul(vx, vslope);
32 const v128_t vmask = wasm_i32x4_shr(vx, 31);
33 vacc = wasm_v128_bitselect(vacc, vx, vmask);
34 wasm_v128_store(y, vacc);
35 y += 4;
36 }
37 if XNN_UNLIKELY(n != 0) {
38 const v128_t vx = wasm_v128_load(x);
39 v128_t vacc = wasm_f32x4_mul(vx, vslope);
40 const v128_t vmask = wasm_i32x4_shr(vx, 31);
41 vacc = wasm_v128_bitselect(vacc, vx, vmask);
42
43 if (n & (2 * sizeof(float))) {
44 *((double*) y) = wasm_f64x2_extract_lane(vacc, 0);
45 vacc = wasm_v32x4_shuffle(vacc, vacc, 2, 3, 2, 3);
46 y += 2;
47 }
48 if (n & (1 * sizeof(float))) {
49 *y = wasm_f32x4_extract_lane(vacc, 0);
50 }
51 }
52 }
53