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xxhash: match output against the original xxhash32

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Change the order in which we extract a/b and c/d to
match the output of the upstream xxhash32.

Tested with:
https://github.com/cota/xxhash/tree/qemu

Backports commit b7c2cd08a6f68010ad27c9c0bf2fde02fb743a0e from qemu
This commit is contained in:
Emilio G. Cota 2018-12-18 06:08:58 -05:00 committed by Lioncash
parent 308f4c1e0c
commit 3d0359c0f5
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 4 additions and 4 deletions
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8
qemu/include/qemu/xxhash.h
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@ -55,10 +55,10 @@ qemu_xxhash7(uint64_t ab, uint64_t cd, uint32_t e, uint32_t f, uint32_t g)
uint32_t v2 = QEMU_XXHASH_SEED + PRIME32_2;
uint32_t v3 = QEMU_XXHASH_SEED + 0;
uint32_t v4 = QEMU_XXHASH_SEED - PRIME32_1;
uint32_t a = ab >> 32;
uint32_t b = ab;
uint32_t c = cd >> 32;
uint32_t d = cd;
uint32_t a = ab;
uint32_t b = ab >> 32;
uint32_t c = cd;
uint32_t d = cd >> 32;
uint32_t h32;
v1 += a * PRIME32_2;