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Diffstat (limited to 'src/crypto/sha/asm/sha1-586.pl')
| -rw-r--r-- | src/crypto/sha/asm/sha1-586.pl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/crypto/sha/asm/sha1-586.pl b/src/crypto/sha/asm/sha1-586.pl index e0b5d83..4895eb3 100644 --- a/src/crypto/sha/asm/sha1-586.pl +++ b/src/crypto/sha/asm/sha1-586.pl @@ -66,9 +66,9 @@ # switch to AVX alone improves performance by as little as 4% in # comparison to SSSE3 code path. But below result doesn't look like # 4% improvement... Trouble is that Sandy Bridge decodes 'ro[rl]' as -# pair of µ-ops, and it's the additional µ-ops, two per round, that +# pair of µ-ops, and it's the additional µ-ops, two per round, that # make it run slower than Core2 and Westmere. But 'sh[rl]d' is decoded -# as single µ-op by Sandy Bridge and it's replacing 'ro[rl]' with +# as single µ-op by Sandy Bridge and it's replacing 'ro[rl]' with # equivalent 'sh[rl]d' that is responsible for the impressive 5.1 # cycles per processed byte. But 'sh[rl]d' is not something that used # to be fast, nor does it appear to be fast in upcoming Bulldozer |