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Remove redundant comparison of fav_factor in update_bitmap_score

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`top_rated_fav_factor` was actually calculated twice,
but only one calculation and comparison is needed.

Since `fav_factor` > `top_rated_fav_factor` will always cause skip of current
iteration, `else if (fuzz_p2 == top_rated_fuzz_p2)` is also redundant.
This commit is contained in:
chinggg
2023-08-13 00:24:44 +08:00
parent 8823f22a9c
commit 030799638d
1 changed files with 2 additions and 23 deletions
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25
src/afl-fuzz-queue.c
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@ -746,30 +746,9 @@ void update_bitmap_score(afl_state_t *afl, struct queue_entry *q) {
}
if (fuzz_p2 > top_rated_fuzz_p2) {
if (fuzz_p2 > top_rated_fuzz_p2) continue;
continue;
} else if (fuzz_p2 == top_rated_fuzz_p2) {
if (fav_factor > top_rated_fav_factor) { continue; }
}
if (unlikely(afl->schedule >= RARE) || unlikely(afl->fixed_seed)) {
if (fav_factor > afl->top_rated[i]->len << 2) { continue; }
} else {
if (fav_factor >
afl->top_rated[i]->exec_us * afl->top_rated[i]->len) {
continue;
}
}
if (fav_factor > top_rated_fav_factor) continue;
/* Looks like we're going to win. Decrease ref count for the
previous winner, discard its afl->fsrv.trace_bits[] if necessary. */