1 // Auto-generated file. Do not edit!
2 // Template: src/s16-rmaxabs/scalar.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2022 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 #include <stddef.h>
12 #include <stdint.h>
13
14 #include <xnnpack/math.h>
15 #include <xnnpack/rmaxabs.h>
16
17
xnn_s16_rmaxabs_ukernel__scalar_x4(size_t batch,const int16_t * input,uint16_t * output)18 void xnn_s16_rmaxabs_ukernel__scalar_x4(
19 size_t batch,
20 const int16_t* input,
21 uint16_t* output) {
22
23 assert(batch > 0);
24 assert(input != NULL);
25 assert(output != NULL);
26
27 uint32_t vmax0 = 0;
28 uint32_t vmax1 = 0;
29 uint32_t vmax2 = 0;
30 uint32_t vmax3 = 0;
31
32 for (; batch >= 4; batch -= 4) {
33 const int32_t vi0 = (int32_t) input[0];
34 const int32_t vi1 = (int32_t) input[1];
35 const int32_t vi2 = (int32_t) input[2];
36 const int32_t vi3 = (int32_t) input[3];
37 input += 4;
38
39 const uint32_t vabs0 = math_abs_s32(vi0);
40 const uint32_t vabs1 = math_abs_s32(vi1);
41 const uint32_t vabs2 = math_abs_s32(vi2);
42 const uint32_t vabs3 = math_abs_s32(vi3);
43
44 vmax0 = math_max_u32(vmax0, vabs0);
45 vmax1 = math_max_u32(vmax1, vabs1);
46 vmax2 = math_max_u32(vmax2, vabs2);
47 vmax3 = math_max_u32(vmax3, vabs3);
48 }
49
50 vmax0 = math_max_u32(vmax0, vmax1);
51 vmax2 = math_max_u32(vmax2, vmax3);
52 vmax0 = math_max_u32(vmax0, vmax2);
53
54 if (batch != 0) {
55 do {
56 const int32_t vi = (int32_t) *input++;
57 const uint32_t vabs = math_abs_s32(vi);
58 vmax0 = math_max_u32(vmax0, vabs);
59 } while (--batch != 0);
60 }
61 *output = (uint16_t) vmax0;
62 }
63