| commit | 65897e991685c87f4575694197d3ce24f7fc9c5a | |
| author | Noah Goldstein <goldstein.w.n@gmail.com> | |
| Thu, 9 Jun 2022 18:16:35 +0000 (9 11:16 -0700) | ||
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | |
| Thu, 9 Jun 2022 19:51:04 +0000 (9 12:51 -0700) | ||
| tree | 69ff6478a0982003b267bd380813743a56645985 | treesnapshot (tar.gz zip) |
| parent | 73bae395cfc862a30e640e9de6f2defecd6fd100 | commitdiff |
x86: Improve svml_s_atanhf8_core_avx2.S
Improvements are:
1. Reduce code size (-60 bytes).
2. Remove redundant move instructions.
3. Slightly improve instruction selection/scheduling where
possible.
4. Prefer registers which get short instruction encoding.
5. Shrink rodata usage (-32 bytes).
The throughput improvement is not that significant (3-5%) as the
port 0 bottleneck is unavoidable.
Function, New Time, Old Time, New / Old
_ZGVdN8v_atanhf, 2.799, 2.923, 0.958
Improvements are:
1. Reduce code size (-60 bytes).
2. Remove redundant move instructions.
3. Slightly improve instruction selection/scheduling where
possible.
4. Prefer registers which get short instruction encoding.
5. Shrink rodata usage (-32 bytes).
The throughput improvement is not that significant (3-5%) as the
port 0 bottleneck is unavoidable.
Function, New Time, Old Time, New / Old
_ZGVdN8v_atanhf, 2.799, 2.923, 0.958
| sysdeps/x86_64/fpu/multiarch/svml_s_atanhf8_core_avx2.S | diffblobblamehistory |