Commit b7c2cd08 authored by Emilio G. Cota's avatar Emilio G. Cota Committed by Richard Henderson
Browse files

xxhash: match output against the original xxhash32 

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



Reviewed-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Tested-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: default avatarEmilio G. Cota <cota@braap.org>
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
parent fe656e31

include/qemu/xxhash.h

+4 −4
Original line number Diff line number Diff line
@@ -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;