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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) {
vtype y = fabs(x);
vtype r, rr, r2, rr2;
itype regn, regn2;
__pocl_remainder_piby2_medium(y, &r, &rr, ®n);
itype cond = (y >= (vtype)0x1.0p+47);
if (SV_ANY(cond)) {
__pocl_remainder_piby2_large(y, &r2, &rr2, ®n2);
regn = cond ? regn2 : regn;
r = cond ? r2 : r;
rr = cond ? rr2 : rr;
}
v2type sc = __pocl_sincos_piby4(r, rr);
itype ss = as_itype(sc.lo);
itype cc = as_itype(sc.hi);
itype s = (regn << 63) ? cc : ss;
s ^= ((regn >> 1) << 63);
s ^= (as_itype(x) & (itype)SIGNBIT_DP64);
// denorms
vtype res = (y < (vtype)DBL_MIN) ? x : as_vtype(s);
return (isnan(x) | isinf(x)) ? as_vtype((utype)QNANBITPATT_DP64) : res;
}
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