Aditya Atluri
04ab5f7f56
1. __int_as_float 2. __hiloint2double Change-Id: Id247c196887b24a12090f0521bf91e13afeec733
59 řádky
1.6 KiB
C++
59 řádky
1.6 KiB
C++
/*
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Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <hip/device_functions.h>
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extern "C" float __hip_int_as_float(int);
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typedef struct {
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signed int hi;
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signed int lo;
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} __hip_signed_2;
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typedef struct {
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union {
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double d;
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long long int lli;
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__hip_signed_2 s2;
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} ;
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} __hip_64bit_struct;
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typedef struct {
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union {
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float f;
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unsigned int ui;
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signed int si;
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};
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} __hip_32bit_struct;
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__device__ float __int_as_float (int x) {
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__hip_32bit_struct s;
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s.si = x;
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return s.f;
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}
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__device__ double __hiloint2double (int hi, int lo) {
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__hip_64bit_struct s;
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s.s2.hi = hi;
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s.s2.lo = lo;
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return s.d;
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}
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