1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "../include/BiF_Definitions.cl"
#include "../../Headers/spirv.h"
INLINE INLINE float SPIRV_OVERLOADABLE SPIRV_OCL_BUILTIN(round, _f32, )( float x )
{
float delta = as_float(0x3EFFFFFF); // one bit less than 0.5f
float nd = x - delta;
float pd = x + delta;
x = ( x < 0 ) ? nd : pd;
return SPIRV_OCL_BUILTIN(trunc, _f32, )(x);
}
GENERATE_SPIRV_OCL_VECTOR_FUNCTIONS_1ARGS( round, float, float, f32 )
#if defined(cl_khr_fp64)
INLINE INLINE double SPIRV_OVERLOADABLE SPIRV_OCL_BUILTIN(round, _f64, )( double x )
{
double delta = as_double(0x3FDFFFFFFFFFFFFFl); // one bit less than 0.5
double nd = x - delta;
double pd = x + delta;
x = ( x < 0 ) ? nd : pd;
return SPIRV_OCL_BUILTIN(trunc, _f64, )(x);
}
GENERATE_SPIRV_OCL_VECTOR_FUNCTIONS_1ARGS( round, double, double, f64 )
#endif // defined(cl_khr_fp64)
#if defined(cl_khr_fp16)
INLINE INLINE half SPIRV_OVERLOADABLE SPIRV_OCL_BUILTIN(round, _f16, )( half x )
{
return SPIRV_OCL_BUILTIN(round, _f32, )((float)x);
}
GENERATE_SPIRV_OCL_VECTOR_FUNCTIONS_1ARGS( round, half, half, f16 )
#endif // defined(cl_khr_fp16)
|
