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List:       openssl-dev
Subject:    Re: [openssl-dev] Is Intel ADX instruction extension supported by the latest OpenSSL?
From:       Andy Polyakov <appro () openssl ! org>
Date:       2016-08-30 10:45:10
Message-ID: eaf4b1b2-8cba-3a32-1285-71d5a43ec75c () openssl ! org
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> I'm looking at how to adopt Intel ADX instruction extension in OpenSSL. Below man \
> page mentions ADCX/ADOX instructions: 
> https://www.openssl.org/docs/manmaster/crypto/OPENSSL_ia32cap.html
> 
> but I can not find ADCX/ADOX related words/expressions from OpenSSL-1.0.2h source \
> code. I wonder whether OpenSSL already supports ADX. If so, what's the related \
> code?

grep adox crypto/bn/asm/*. As for referred page, do note that there are
minimum assembler version requirements. Even though AD[OC]X are not
explicitly mentioned, there is minimum requirement even for that, and
it's 2.23 for GNU assembler, 2.10 for nasm and 3.3 for clang.

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