patch to add aes and pclmulqdq instructions to gcc

[Konstantin Belousov]

On Wed, Jan 16, 2013 at 11:05:16PM -0800, John-Mark Gurney wrote:
> Mike Belopuhov pointed me to the patch in OpenBSD:
> http://freshbsd.org/commit/openbsd/0babc91a00b1f1953637bb39c8ec97aef704629e/diff.txt
> 
> While OpenBSD's binutils is quite different than FreeBSD's, I was able
> to use his patch to teach binutils how to assemble and disassemble the
> aes and pclmulqdq instructions.
> 
> I have done basic tests, such as verified that it can assemble the aesni
> module and get the same results, and assemble a sample file for
> pclmulqdq..  For each of these tests, I have verified that it's output
> matches (as close as possible, as gcc/clang compile callq's differently)
> clang on amd64..
Did you removed the manually assembled bytes from aes*.S and replaced them
with the commented-out instructions for the test ?

There is also newer VEX encoding for the same AESNI set, but adding the
support for them might be hard because the source base is old.
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