| commit | 2a3210cf4abff0a69ff3e7adc66591dfe6ab2197 | [log] [tgz] |
|---|---|---|
| author | Szabolcs Nagy <nsz@port70.net> | Sat Dec 01 00:53:54 2018 +0000 |
| committer | Rich Felker <dalias@aerifal.cx> | Wed Apr 17 23:45:13 2019 -0400 |
| tree | 6fd3ac932c34d33a48c0604a7fcf5b1b8760b83d | |
| parent | 236cd056e871acb8731cd84b5bfb6f0feb646589 [diff] |
math: new log2 from https://github.com/ARM-software/optimized-routines, commit 04884bd04eac4b251da4026900010ea7d8850edc code size change: +2458 bytes (+1524 bytes with fma). benchmark on x86_64 before, after, speedup: -Os: log2 rthruput: 16.08 ns/call 10.49 ns/call 1.53x log2 latency: 44.54 ns/call 25.55 ns/call 1.74x -O3: log2 rthruput: 15.92 ns/call 10.11 ns/call 1.58x log2 latency: 44.66 ns/call 26.16 ns/call 1.71x