| commit | 69170e15cc2a10d7883e2fb40fb4437052febc13 | [log] [tgz] |
|---|---|---|
| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | Mon Oct 14 15:21:28 2019 +0100 |
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | Tue Nov 05 18:38:51 2019 +0000 |
| tree | 80a149cd724906606532751fab4ff870ad750930 | |
| parent | 65464ec60ba73d113c8bd1632708014fa82dc9c6 [diff] |
Add vector exp2f Same design as in expf. Worst-case error of __v_exp2f and __v_exp2f_1u is 1.96 and 0.88 ulp respectively. It is not clear if round/convert instructions are better or +- Shift. For expf the latter, for exp2f the former seems more consistently faster, but both options are kept in the code for now.