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/*========================== begin_copyright_notice ============================
Copyright (C) 2020-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "../imf.h"
#pragma OPENCL FP_CONTRACT OFF
typedef struct
{
unsigned int SgnBit;
unsigned int OneHalf;
unsigned int sRsqrtMsk;
unsigned int MOne;
unsigned int HalfMask;
unsigned int Two;
unsigned int sqrt_coeff[2];
unsigned int poly_coeff[5];
unsigned int InvPiH;
unsigned int InvPiL;
unsigned int One;
unsigned int InvPi;
unsigned int SgnMask;
unsigned int ep_coeff[3];
} __internal_sacospi_la_data_t;
static __constant __internal_sacospi_la_data_t __internal_sacospi_la_data = {
0x80000000u, 0x3f000000u, 0xfffff000u, 0xbf800000u, 0xffffe000u, 0x40000000u, {
0xbdC00004u, 0x3e800001u}
, {
0x3c5EA355u, 0x3bF87E20u, 0x3c6D978Cu, 0x3cC36C37u, 0x3D594D1Bu}
, 0x3eA30000u, 0xb84F93C2u, 0x3f800000u, 0x3eA2F983u, 0x80000000u, {
0x3cFA8B09u, 0x3d567E9Du, 0x3eA2FAD7u}
};
__attribute__((always_inline))
inline int __internal_sacospi_la_cout (float *a, float *r)
{
int nRet = 0;
if ((((((_iml_v2_sp_union_t *) & *a)->hex[0] >> 23) & 0xFF) != 0xFF))
{
if (((*a) <= 1.0f) && ((*a) >= -1.0f))
{
if ((*a) == 1.0f)
*r = 0;
if ((*a) == -1.0f)
*r = 1.0f;
}
else
{
{
*r = (*a - *a) / (*a - *a);
nRet = 1;
}
}
}
else
{
*r = *a / *a;
if (((((_iml_v2_sp_union_t *) & *a)->hex[0] & 0x007FFFFF) == 0))
{
nRet = 1;
}
}
return nRet;
}
float __ocl_svml_acospif (float a)
{
float va1;
float vr1;
unsigned int vm;
float r;
va1 = a;;
{
float SgnBit;
float Sgn_X;
float OneHalf;
float MOne;
float X;
float BrMask;
unsigned int BrMaskL;
float SelMask;
float PiMask;
float Y;
float X2;
float Sh;
float Sl;
float poly_coeff[13];
float X4;
float X8;
float One;
float HalfMask;
float InvPiH;
float InvPiL;
float InvPi;
float Xh;
float Xl;
float Shl;
float Shh;
float SQ;
float Low;
float High;
float Poly;
float P23;
float P78;
float P56;
float P58;
float P34;
float P12;
SgnBit = as_float (__internal_sacospi_la_data.SgnBit);
OneHalf = as_float (__internal_sacospi_la_data.OneHalf);
MOne = as_float (__internal_sacospi_la_data.MOne);
X = as_float ((as_uint (SgnBit) | as_uint (va1)));
Sgn_X = as_float ((as_uint (SgnBit) & as_uint (va1)));
BrMask = as_float (((unsigned int) (-(signed int) (X <= MOne))));
Y = SPIRV_OCL_BUILTIN(fma, _f32_f32_f32, ) (X, OneHalf, OneHalf);
X2 = (X * X);
X2 = ((X2 < Y) ? X2 : Y);
BrMaskL = as_uint (BrMask);
vm = 0;
vm = BrMaskL;
SelMask = as_float (((unsigned int) (-(signed int) (!(X2 < Y)))));
{
SQ = (SPIRV_OCL_BUILTIN(sqrt, _f32, ) (Y));
SQ = (SQ + SQ);
};
poly_coeff[5] = as_float (__internal_sacospi_la_data.poly_coeff[0]);
poly_coeff[4] = as_float (__internal_sacospi_la_data.poly_coeff[1]);
poly_coeff[3] = as_float (__internal_sacospi_la_data.poly_coeff[2]);
poly_coeff[2] = as_float (__internal_sacospi_la_data.poly_coeff[3]);
Poly = SPIRV_OCL_BUILTIN(fma, _f32_f32_f32, ) (X2, poly_coeff[5], poly_coeff[4]);
P23 = SPIRV_OCL_BUILTIN(fma, _f32_f32_f32, ) (X2, poly_coeff[3], poly_coeff[2]);
X4 = (X2 * X2);
poly_coeff[1] = as_float (__internal_sacospi_la_data.poly_coeff[4]);
Poly = SPIRV_OCL_BUILTIN(fma, _f32_f32_f32, ) (Poly, X4, P23);
Poly = SPIRV_OCL_BUILTIN(fma, _f32_f32_f32, ) (Poly, X2, poly_coeff[1]);
InvPi = as_float (__internal_sacospi_la_data.InvPi);
Poly = SPIRV_OCL_BUILTIN(fma, _f32_f32_f32, ) (Poly, X2, InvPi);
PiMask = as_float (((unsigned int) (-(signed int) (va1 < X2))));
One = as_float (__internal_sacospi_la_data.One);
One = as_float ((as_uint (One) & as_uint (SelMask)));
One = as_float ((as_uint (One) & as_uint (PiMask)));
OneHalf = as_float ((~(as_uint (SelMask)) & as_uint (OneHalf)));
OneHalf = (OneHalf + One);
X = as_float ((((~as_uint (SelMask)) & as_uint (X)) | (as_uint (SelMask) & as_uint (SQ))));
X = as_float ((as_uint (X) ^ as_uint (Sgn_X)));
vr1 = SPIRV_OCL_BUILTIN(fma, _f32_f32_f32, ) (Poly, X, OneHalf);
}
if ((vm) != 0)
{
float _vapi_arg1[1];
float _vapi_res1[1];
((float *) _vapi_arg1)[0] = va1;
((float *) _vapi_res1)[0] = vr1;
__internal_sacospi_la_cout (_vapi_arg1, _vapi_res1);
vr1 = ((float *) _vapi_res1)[0];
};
r = vr1;;
return r;
}
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