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Parallelize opt_merge.

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I'm not sure why but this is actually faster than existing `opt_merge` even with
YOSYS_MAX_THREADS=1, for the jpeg synthesis test. 16.0s before, 15.5s after for
end-to-end synthesis.
This commit is contained in:
Robert O'Callahan 2025-11-25 01:35:00 +00:00
parent 1cceaa2a80
commit 755836cd60
3 changed files with 294 additions and 106 deletions
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6
kernel/hashlib.h
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@ -1321,6 +1321,12 @@ public:
return i < 0 ? 0 : 1;
}
int lookup(const K &key) const
{
Hasher::hash_t hash = database.do_hash(key);
return database.do_lookup_no_rehash(key, hash);
}
void expect(const K &key, int i)
{
int j = (*this)(key);