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Enables SHA Extensions on x86 and optimizes SHA-1 and SHA-256.
Comments
This is responsible for a doubling of performance for SHA256
130MB/s in 8u vs 256MB/s in 11u @ 512KB
I see no difference with or without the intrinsic for SHA1. That seems surprising to me.
Code Contributed by Vivek Deshpande and Shravya Rukmannagari (shravya.rukmannagari@intel.com)
http://cr.openjdk.java.net/~vdeshpande/SHANI/8150767/webrev.00/