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/* OpenCL built-in library: sin()
Copyright (c) 2015 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.
*/
#include "hsail_templates.h"
float _CL_OVERLOADABLE sin(float d)
{
// Algorithm taken from SLEEF 2.80
float PI4_A, PI4_B, PI4_C, PI4_D;
PI4_A = 0.78515625f;
PI4_B = 0.00024187564849853515625f;
PI4_C = 3.7747668102383613586e-08f;
PI4_D = 1.2816720341285448015e-12f;
float q = rint(d * (float)(M_1_PI));
int iq = convert_int(q);
#ifdef VML_HAVE_FP_CONTRACT
d = mad(q, (float)(-PI4_A*4), d);
d = mad(q, (float)(-PI4_B*4), d);
d = mad(q, (float)(-PI4_C*4), d);
d = mad(q, (float)(-PI4_D*4), d);
#else
d = mad(q, (float)(-M_PI), d);
#endif
float s = d * d;
if (iq & 1)
d = -d;
float u;
u = (float)(2.6083159809786593541503e-06f);
u = mad(u, s, (float)(-0.0001981069071916863322258f));
u = mad(u, s, (float)(0.00833307858556509017944336f));
u = mad(u, s, (float)(-0.166666597127914428710938f));
u = mad(s, u * d, d);
//const real_t nan = std::numeric_limits<real_t>::quiet_NaN();
//u = ifthen(isinf(d), (float)(nan), u);
if (isinf(d))
return NAN;
else
return u;
}
double _CL_OVERLOADABLE sin(double d)
{
// Algorithm taken from SLEEF 2.80
double PI4_A, PI4_B, PI4_C, PI4_D;
PI4_A = 0.78539816290140151978;
PI4_B = 4.9604678871439933374e-10;
PI4_C = 1.1258708853173288931e-18;
PI4_D = 1.7607799325916000908e-27;
double q = rint(d * (double)M_1_PI);
int iq = convert_int(q);
#ifdef VML_HAVE_FP_CONTRACT
d = mad(q, (double)(-PI4_A*4), d);
d = mad(q, (double)(-PI4_B*4), d);
d = mad(q, (double)(-PI4_C*4), d);
d = mad(q, (double)(-PI4_D*4), d);
#else
d = mad(q, (double)(-M_PI), d);
#endif
double s = d * d;
if (iq & 1)
d = -d;
double u;
u = (double)(-7.97255955009037868891952e-18);
u = mad(u, s, (double)(2.81009972710863200091251e-15));
u = mad(u, s, (double)(-7.64712219118158833288484e-13));
u = mad(u, s, (double)(1.60590430605664501629054e-10));
u = mad(u, s, (double)(-2.50521083763502045810755e-08));
u = mad(u, s, (double)(2.75573192239198747630416e-06));
u = mad(u, s, (double)(-0.000198412698412696162806809));
u = mad(u, s, (double)(0.00833333333333332974823815));
u = mad(u, s, (double)(-0.166666666666666657414808));
u = mad(s, u * d, d);
//const real_t nan = std::numeric_limits<real_t>::quiet_NaN();
//u = ifthen(isinf(d), (double)(nan), u);
if (isinf(d))
return NAN;
else
return u;
}
IMPLEMENT_VECWITHSCALARS(sin, V_V, float, int)
IMPLEMENT_VECWITHSCALARS(sin, V_V, double, int)
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