1 // Auto-generated file. Do not edit!
2 // Template: src/f32-qs8-vcvt/scalar-lrintf.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 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 <math.h>
12
13 #include <xnnpack/common.h>
14 #include <xnnpack/math.h>
15 #include <xnnpack/vcvt.h>
16
17
xnn_f32_qs8_vcvt_ukernel__scalar_lrintf_x2(size_t n,const float * x,int8_t * y,const union xnn_f32_qs8_cvt_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f32_qs8_vcvt_ukernel__scalar_lrintf_x2(
19 size_t n,
20 const float* x,
21 int8_t* y,
22 const union xnn_f32_qs8_cvt_params params[restrict XNN_MIN_ELEMENTS(1)])
23 {
24 assert(n != 0);
25 assert(n % sizeof(float) == 0);
26 assert(x != NULL);
27 assert(y != NULL);
28
29 const float vscale = params->scalar_lrintf.scale;
30 const float voutput_min_less_zero_point = params->scalar_lrintf.output_min_less_zero_point;
31 const float voutput_max_less_zero_point = params->scalar_lrintf.output_max_less_zero_point;
32 const int32_t voutput_zero_point = params->scalar_lrintf.output_zero_point;
33
34 for (; n >= 2 * sizeof(float); n -= 2 * sizeof(float)) {
35 float vx0 = x[0];
36 float vx1 = x[1];
37 x += 2;
38
39 vx0 *= vscale;
40 vx1 *= vscale;
41
42 vx0 = math_max_f32(vx0, voutput_min_less_zero_point);
43 vx1 = math_max_f32(vx1, voutput_min_less_zero_point);
44
45 vx0 = math_min_f32(vx0, voutput_max_less_zero_point);
46 vx1 = math_min_f32(vx1, voutput_max_less_zero_point);
47
48 int32_t vy0 = (int32_t) lrintf(vx0);
49 int32_t vy1 = (int32_t) lrintf(vx1);
50
51 vy0 += voutput_zero_point;
52 vy1 += voutput_zero_point;
53
54 y[0] = (int8_t) vy0;
55 y[1] = (int8_t) vy1;
56 y += 2;
57 }
58 if XNN_UNLIKELY(n != 0) {
59 float vx = *x;
60 vx *= vscale;
61 vx = math_max_f32(vx, voutput_min_less_zero_point);
62 vx = math_min_f32(vx, voutput_max_less_zero_point);
63
64 int32_t vy = (int32_t) lrintf(vx);
65 vy += voutput_zero_point;
66
67 *y = (int8_t) vy;
68 }
69 }
70