diff options
Diffstat (limited to 'pl/math/v_exp_tail.h')
| -rw-r--r-- | pl/math/v_exp_tail.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/pl/math/v_exp_tail.h b/pl/math/v_exp_tail.h new file mode 100644 index 0000000..903f1fd --- /dev/null +++ b/pl/math/v_exp_tail.h @@ -0,0 +1,21 @@ +/* + * Constants for double-precision e^(x+tail) vector function. + * + * Copyright (c) 2019-2023, Arm Limited. + * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception + */ + +#include "math_config.h" + +#define C1_scal 0x1.fffffffffffd4p-2 +#define C2_scal 0x1.5555571d6b68cp-3 +#define C3_scal 0x1.5555576a59599p-5 +#define InvLn2_scal 0x1.71547652b82fep8 /* N/ln2. */ +#define Ln2hi_scal 0x1.62e42fefa39efp-9 /* ln2/N. */ +#define Ln2lo_scal 0x1.abc9e3b39803f3p-64 + +#define N (1 << V_EXP_TAIL_TABLE_BITS) +#define Tab __v_exp_tail_data +#define IndexMask_scal (N - 1) +#define Shift_scal 0x1.8p+52 +#define Thres_scal 704.0 |