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/*
* Copyright (c) 2014 Advanced Micro Devices, Inc.
*
* Copyright (c) 2017 Michal Babej / Tampere University of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
_CL_OVERLOADABLE vtype sin(vtype x)
{
itype ix = as_itype(x);
itype ax = ix & (itype)EXSIGNBIT_SP32;
vtype dx = as_vtype(ax);
vtype r0, r1;
itype regn = __pocl_argReductionS(&r0, &r1, dx);
vtype ss = __pocl_sinf_piby4(r0, r1);
vtype cc = __pocl_cosf_piby4(r0, r1);
vtype s = (regn << 31) ? cc : ss;
itype mask = ((regn > (itype)1) ? (itype)SIGNBIT_SP32 : (itype)0);
s = as_vtype(as_itype(s) ^ mask ^ (ix ^ ax));
s = (ax >= (itype)PINFBITPATT_SP32) ? as_vtype((utype)QNANBITPATT_SP32) : s;
//Subnormals
s = (x == 0.0f) ? x : s;
return s;
}
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