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JS optimisations pt.1

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wuggy 2026-09-18 13:11:49 -07:00
commit 6cc90c7009
31 changed files with 867 additions and 107 deletions
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13
mfbt/HashFunctions.h
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@ -230,8 +230,17 @@ uint32_t
HashKnownLength(const T* aStr, size_t aLength)
{
uint32_t hash = 0;
for (size_t i = 0; i < aLength; i++) {
hash = AddToHash(hash, aStr[i]);
while (aLength >= 4) {
hash = AddToHash(hash, aStr[0]);
hash = AddToHash(hash, aStr[1]);
hash = AddToHash(hash, aStr[2]);
hash = AddToHash(hash, aStr[3]);
aStr += 4;
aLength -= 4;
}
while (aLength) {
hash = AddToHash(hash, *aStr++);
--aLength;
}
return hash;
}