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| author | Mattias Andrée <maandree@kth.se> | 2022-01-19 20:28:55 +0100 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2022-01-19 20:28:55 +0100 |
| commit | 5d77a0178349ecac6536e0374cf689500efa22bc (patch) | |
| tree | f6fcb38cd39e8f4240537233a08fdbb5c0284798 /libblake_blake2b_digest.c | |
| parent | Improve portability (diff) | |
| download | libblake-5d77a0178349ecac6536e0374cf689500efa22bc.tar.gz libblake-5d77a0178349ecac6536e0374cf689500efa22bc.tar.bz2 libblake-5d77a0178349ecac6536e0374cf689500efa22bc.tar.xz | |
Optimisation for amd64
Increased major number as the ABI was broken
by insertion of padding into the BLAKE2
parameter structures (except for BLAKE2Xs)
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to '')
| -rw-r--r-- | libblake_blake2b_digest.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libblake_blake2b_digest.c b/libblake_blake2b_digest.c index 08b2d75..4338387 100644 --- a/libblake_blake2b_digest.c +++ b/libblake_blake2b_digest.c @@ -13,13 +13,16 @@ libblake_blake2b_digest(struct libblake_blake2b_state *state, void *data_, size_ len -= r; state->f[0] = UINT_LEAST64_C(0xFFFFffffFFFFffff); - if (last_node) + if (UNLIKELY(last_node)) state->f[1] = UINT_LEAST64_C(0xFFFFffffFFFFffff); memset(&data[len], 0, 128 - len); + /* This runs so seldom that we are not bothering with trying to optimise + * this since similar code in libblake_blake2b_force_update.c could not + * be optimised */ state->t[0] = (state->t[0] + len) & UINT_LEAST64_C(0xFFFFffffFFFFffff); - if (state->t[0] < len) + if (UNLIKELY(state->t[0] < len)) state->t[1] = (state->t[1] + 1) & UINT_LEAST64_C(0xFFFFffffFFFFffff); libblake_internal_blake2b_compress(state, data); |