1/* 2 * Copyright (c) 2018, Arm Limited. 3 * SPDX-License-Identifier: MIT 4 */ 5#ifndef _LOG2_DATA_H 6#define _LOG2_DATA_H 7 8#include <features.h> 9 10#define LOG2_TABLE_BITS 6 11#define LOG2_POLY_ORDER 7 12#define LOG2_POLY1_ORDER 11 13extern hidden const struct log2_data { 14 double invln2hi; 15 double invln2lo; 16 double poly[LOG2_POLY_ORDER - 1]; 17 double poly1[LOG2_POLY1_ORDER - 1]; 18 struct { 19 double invc, logc; 20 } tab[1 << LOG2_TABLE_BITS]; 21#if !__FP_FAST_FMA 22 struct { 23 double chi, clo; 24 } tab2[1 << LOG2_TABLE_BITS]; 25#endif 26} __log2_data; 27 28#endif 29