| /* |
| * Helper macros for pairwise Horner polynomial evaluation. |
| * |
| * Copyright (c) 2022-2023, Arm Limited. |
| * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception |
| */ |
| |
| // clang-format off |
| #define PW_HORNER_1_(x, c, i) FMA(x, C(i + 1), C(i)) |
| #define PW_HORNER_3_(x, x2, c, i) FMA(x2, PW_HORNER_1_ (x, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_5_(x, x2, c, i) FMA(x2, PW_HORNER_3_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_7_(x, x2, c, i) FMA(x2, PW_HORNER_5_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_9_(x, x2, c, i) FMA(x2, PW_HORNER_7_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_11_(x, x2, c, i) FMA(x2, PW_HORNER_9_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_13_(x, x2, c, i) FMA(x2, PW_HORNER_11_(x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_15_(x, x2, c, i) FMA(x2, PW_HORNER_13_(x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_17_(x, x2, c, i) FMA(x2, PW_HORNER_15_(x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| |
| #define PAIRWISE_HORNER_1(x, c) PW_HORNER_1_ (x, c, 0) |
| #define PAIRWISE_HORNER_3(x, x2, c) PW_HORNER_3_ (x, x2, c, 0) |
| #define PAIRWISE_HORNER_5(x, x2, c) PW_HORNER_5_ (x, x2, c, 0) |
| #define PAIRWISE_HORNER_7(x, x2, c) PW_HORNER_7_ (x, x2, c, 0) |
| #define PAIRWISE_HORNER_9(x, x2, c) PW_HORNER_9_ (x, x2, c, 0) |
| #define PAIRWISE_HORNER_11(x, x2, c) PW_HORNER_11_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_13(x, x2, c) PW_HORNER_13_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_15(x, x2, c) PW_HORNER_15_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_17(x, x2, c) PW_HORNER_17_(x, x2, c, 0) |
| |
| #define PW_HORNER_2_(x, x2, c, i) FMA(x2, c(i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_4_(x, x2, c, i) FMA(x2, PW_HORNER_2_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_6_(x, x2, c, i) FMA(x2, PW_HORNER_4_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_8_(x, x2, c, i) FMA(x2, PW_HORNER_6_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_10_(x, x2, c, i) FMA(x2, PW_HORNER_8_ (x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_12_(x, x2, c, i) FMA(x2, PW_HORNER_10_(x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_14_(x, x2, c, i) FMA(x2, PW_HORNER_12_(x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_16_(x, x2, c, i) FMA(x2, PW_HORNER_14_(x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| #define PW_HORNER_18_(x, x2, c, i) FMA(x2, PW_HORNER_16_(x, x2, c, i + 2), PW_HORNER_1_(x, c, i)) |
| |
| #define PAIRWISE_HORNER_2(x, x2, c) PW_HORNER_2_ (x, x2, c, 0) |
| #define PAIRWISE_HORNER_4(x, x2, c) PW_HORNER_4_ (x, x2, c, 0) |
| #define PAIRWISE_HORNER_6(x, x2, c) PW_HORNER_6_ (x, x2, c, 0) |
| #define PAIRWISE_HORNER_8(x, x2, c) PW_HORNER_8_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_10(x, x2, c) PW_HORNER_10_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_12(x, x2, c) PW_HORNER_12_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_14(x, x2, c) PW_HORNER_14_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_16(x, x2, c) PW_HORNER_16_(x, x2, c, 0) |
| #define PAIRWISE_HORNER_18(x, x2, c) PW_HORNER_18_(x, x2, c, 0) |
| // clang-format on |