| //===-- Collection of utils for exp and friends -----------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIBC_SRC_MATH_EXP_UTILS_H |
| #define LLVM_LIBC_SRC_MATH_EXP_UTILS_H |
| |
| #include <stdint.h> |
| |
| #define EXP2F_TABLE_BITS 5 |
| #define EXP2F_POLY_ORDER 3 |
| #define N (1 << EXP2F_TABLE_BITS) |
| |
| namespace __llvm_libc { |
| |
| struct Exp2fDataTable { |
| uint64_t tab[1 << EXP2F_TABLE_BITS]; |
| double shift_scaled; |
| double poly[EXP2F_POLY_ORDER]; |
| double shift; |
| double invln2_scaled; |
| double poly_scaled[EXP2F_POLY_ORDER]; |
| }; |
| |
| extern const Exp2fDataTable exp2f_data; |
| |
| } // namespace __llvm_libc |
| |
| #endif // LLVM_LIBC_SRC_MATH_EXP_UTILS_H |