zlib-ng / zlib-ng / 22219714229

94%

Build Type

push

github

Committed by Dead2

Commit Message

Keep bi_buf/bi_valid in registers across compress_block loop

Refactor the emit functions to take bi_buf and bi_valid by reference,
allowing compress_block() to keep these values in CPU registers for the
entire duration of the main compression loop instead of reloading them
from memory on every iteration.

This eliminates two memory loads (s->bi_buf, s->bi_valid) and two memory
stores per symbol in the hot path.

Coverage Stats

9735 of 10439 branches covered (93.26%)

Branch coverage included in aggregate %.

33 of 33 new or added lines in 2 files covered. (100.0%)

1 existing line in 1 file now uncovered.

12301 of 12816 relevant lines covered (95.98%)

323553268.83 hits per line