1*71db0c75SAndroid Build Coastguard Worker //===-- Collection of utils for exp and friends -----------------*- C++ -*-===// 2*71db0c75SAndroid Build Coastguard Worker // 3*71db0c75SAndroid Build Coastguard Worker // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*71db0c75SAndroid Build Coastguard Worker // See https://llvm.org/LICENSE.txt for license information. 5*71db0c75SAndroid Build Coastguard Worker // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*71db0c75SAndroid Build Coastguard Worker // 7*71db0c75SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===// 8*71db0c75SAndroid Build Coastguard Worker 9*71db0c75SAndroid Build Coastguard Worker #ifndef LLVM_LIBC_SRC_MATH_GENERIC_EXP_UTILS_H 10*71db0c75SAndroid Build Coastguard Worker #define LLVM_LIBC_SRC_MATH_GENERIC_EXP_UTILS_H 11*71db0c75SAndroid Build Coastguard Worker 12*71db0c75SAndroid Build Coastguard Worker #include "src/__support/macros/config.h" 13*71db0c75SAndroid Build Coastguard Worker #include <stdint.h> 14*71db0c75SAndroid Build Coastguard Worker 15*71db0c75SAndroid Build Coastguard Worker #define EXP2F_TABLE_BITS 5 16*71db0c75SAndroid Build Coastguard Worker #define EXP2F_POLY_ORDER 3 17*71db0c75SAndroid Build Coastguard Worker #define N (1 << EXP2F_TABLE_BITS) 18*71db0c75SAndroid Build Coastguard Worker 19*71db0c75SAndroid Build Coastguard Worker namespace LIBC_NAMESPACE_DECL { 20*71db0c75SAndroid Build Coastguard Worker 21*71db0c75SAndroid Build Coastguard Worker struct Exp2fDataTable { 22*71db0c75SAndroid Build Coastguard Worker uint64_t tab[1 << EXP2F_TABLE_BITS]; 23*71db0c75SAndroid Build Coastguard Worker double shift_scaled; 24*71db0c75SAndroid Build Coastguard Worker double poly[EXP2F_POLY_ORDER]; 25*71db0c75SAndroid Build Coastguard Worker double shift; 26*71db0c75SAndroid Build Coastguard Worker double invln2_scaled; 27*71db0c75SAndroid Build Coastguard Worker double poly_scaled[EXP2F_POLY_ORDER]; 28*71db0c75SAndroid Build Coastguard Worker }; 29*71db0c75SAndroid Build Coastguard Worker 30*71db0c75SAndroid Build Coastguard Worker extern const Exp2fDataTable exp2f_data; 31*71db0c75SAndroid Build Coastguard Worker 32*71db0c75SAndroid Build Coastguard Worker } // namespace LIBC_NAMESPACE_DECL 33*71db0c75SAndroid Build Coastguard Worker 34*71db0c75SAndroid Build Coastguard Worker #endif // LLVM_LIBC_SRC_MATH_GENERIC_EXP_UTILS_H 35