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[3.13] gh-111389: Add PyHASH_MULTIPLIER constant (GH-119214) (#119334)

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gh-111389: Add PyHASH_MULTIPLIER constant (GH-119214)
(cherry picked from commit f6da790122)

Co-authored-by: Victor Stinner <vstinner@python.org>
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Miss Islington (bot) 2024-06-04 09:26:25 +02:00 • committed by GitHub
parent 6be55f1bed
commit 1177897551
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GPG key ID: B5690EEEBB952194
7 changed files with 16 additions and 7 deletions
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Python/optimizer.c
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@ -1496,7 +1496,7 @@ address_to_hash(void *ptr) {
uintptr_t addr = (uintptr_t)ptr;
for (int i = 0; i < SIZEOF_VOID_P; i++) {
uhash ^= addr & 255;
uhash *= (uint64_t)_PyHASH_MULTIPLIER;
uhash *= (uint64_t)PyHASH_MULTIPLIER;
addr >>= 8;
}
return uhash;