72 lines
2.3 KiB
Common Lisp
72 lines
2.3 KiB
Common Lisp
/*
|
|
* Copyright (c) 2014 Advanced Micro Devices, Inc.
|
|
*
|
|
* 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 <clc/clc.h>
|
|
|
|
#include "math.h"
|
|
#include "sincos_helpers.h"
|
|
#include "../clcmacro.h"
|
|
#include "tables.h"
|
|
|
|
_CLC_DEF _CLC_OVERLOAD float __clc_tan(float x)
|
|
{
|
|
int ix = as_int(x);
|
|
int ax = ix & 0x7fffffff;
|
|
float dx = as_float(ax);
|
|
|
|
float r0, r1;
|
|
int regn = __clc_argReductionS(&r0, &r1, dx);
|
|
|
|
float t = __clc_tanf_piby4(r0 + r1, regn);
|
|
t = as_float(as_int(t) ^ (ix ^ ax));
|
|
|
|
t = ax >= PINFBITPATT_SP32 ? as_float(QNANBITPATT_SP32) : t;
|
|
//Take care of subnormals
|
|
t = (x == 0.0f) ? x : t;
|
|
return t;
|
|
}
|
|
_CLC_UNARY_VECTORIZE(_CLC_DEF _CLC_OVERLOAD, float, __clc_tan, float);
|
|
|
|
#ifdef cl_khr_fp64
|
|
#include "sincosD_piby4.h"
|
|
|
|
_CLC_DEF _CLC_OVERLOAD double __clc_tan(double x)
|
|
{
|
|
double y = fabs(x);
|
|
|
|
double r, rr;
|
|
int regn;
|
|
|
|
if (y < 0x1.0p+30)
|
|
__clc_remainder_piby2_medium(y, &r, &rr, ®n);
|
|
else
|
|
__clc_remainder_piby2_large(y, &r, &rr, ®n);
|
|
|
|
double2 tt = __clc_tan_piby4(r, rr);
|
|
|
|
int2 t = as_int2(regn & 1 ? tt.y : tt.x);
|
|
t.hi ^= (x < 0.0) << 31;
|
|
|
|
return isnan(x) || isinf(x) ? as_double(QNANBITPATT_DP64) : as_double(t);
|
|
}
|
|
_CLC_UNARY_VECTORIZE(_CLC_DEF _CLC_OVERLOAD, double, __clc_tan, double);
|
|
#endif
|