1bbb75554SSiva Chandra //===-- Collection of utils for exp and friends -----------------*- C++ -*-===// 2bbb75554SSiva Chandra // 3bbb75554SSiva Chandra // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4bbb75554SSiva Chandra // See https://llvm.org/LICENSE.txt for license information. 5bbb75554SSiva Chandra // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6bbb75554SSiva Chandra // 7bbb75554SSiva Chandra //===----------------------------------------------------------------------===// 8bbb75554SSiva Chandra 9330793c9SNick Desaulniers #ifndef LLVM_LIBC_SRC_MATH_GENERIC_EXP_UTILS_H 10330793c9SNick Desaulniers #define LLVM_LIBC_SRC_MATH_GENERIC_EXP_UTILS_H 11bbb75554SSiva Chandra 12*5ff3ff33SPetr Hosek #include "src/__support/macros/config.h" 13bbb75554SSiva Chandra #include <stdint.h> 14bbb75554SSiva Chandra 15bbb75554SSiva Chandra #define EXP2F_TABLE_BITS 5 16bbb75554SSiva Chandra #define EXP2F_POLY_ORDER 3 17bbb75554SSiva Chandra #define N (1 << EXP2F_TABLE_BITS) 18bbb75554SSiva Chandra 19*5ff3ff33SPetr Hosek namespace LIBC_NAMESPACE_DECL { 20bbb75554SSiva Chandra 21bbb75554SSiva Chandra struct Exp2fDataTable { 22bbb75554SSiva Chandra uint64_t tab[1 << EXP2F_TABLE_BITS]; 23bbb75554SSiva Chandra double shift_scaled; 24bbb75554SSiva Chandra double poly[EXP2F_POLY_ORDER]; 25bbb75554SSiva Chandra double shift; 26bbb75554SSiva Chandra double invln2_scaled; 27bbb75554SSiva Chandra double poly_scaled[EXP2F_POLY_ORDER]; 28bbb75554SSiva Chandra }; 29bbb75554SSiva Chandra 30bbb75554SSiva Chandra extern const Exp2fDataTable exp2f_data; 31bbb75554SSiva Chandra 32*5ff3ff33SPetr Hosek } // namespace LIBC_NAMESPACE_DECL 33bbb75554SSiva Chandra 34330793c9SNick Desaulniers #endif // LLVM_LIBC_SRC_MATH_GENERIC_EXP_UTILS_H 35