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/*
* Shared functions for scalar and vector single-precision erfc(x) functions.
*
* Copyright (c) 2021-2023, Arm Limited.
* SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
*/
#ifndef PL_MATH_ERFCF_H
#define PL_MATH_ERFCF_H
#include "math_config.h"
#define FMA fma
#include "estrin_wrap.h"
/* Accurate exponential from optimized-routines. */
double
__exp_dd (double x, double xtail);
static inline double
eval_poly (double z, const double *coeff)
{
double z2 = z * z;
double z4 = z2 * z2;
double z8 = z4 * z4;
#define C(i) coeff[i]
return ESTRIN_15 (z, z2, z4, z8, C);
#undef C
}
static inline double
eval_exp_mx2 (double x)
{
return __exp_dd (-(x * x), 0.0);
}
#undef FMA
#endif // PL_MATH_ERFCF_H
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