I've updated this set to use the proper conventions for register names, and
also adjusted the IV macro according to the suggestions provided.

I can also confirm that I've gotten a working build environment based on
the approach the GitLab CI configuration, and that the ppc64 big-endian
build does indeed pass tests.


Amended original cover letter:

This set introduces an optimized powerpc64 assembly implementation for
SHA256 and SHA512. This have been derived from BSD-2-Clause licensed
code authored by IBM, originally released in the IBM POWER
Cryptography Reference Implementation project[1], modified to work in
Nettle, contributed under the GPL license.

Development of this new implementation targetted POWER 10, however
supports the POWER 8 and above ISA. The following commits provide the
performance data I recorded on POWER 10, though similar improvements can
be found on P8/P9.

I have tested this patch set on POWER 8 and POWER 10, hardware running
little-endian linux distributions, and via qemu-user for big-endian ppc64.


Eric Richter (2):
  powerpc64: Add optimized assembly for sha256-compress-n
  powerpc64: Add optimized assembly for sha512-compress-n

 fat-ppc.c                             |  22 ++
 powerpc64/fat/sha256-compress-n-2.asm |  36 +++
 powerpc64/fat/sha512-compress-2.asm   |  36 +++
 powerpc64/p8/sha256-compress-n.asm    | 323 +++++++++++++++++++++++++
 powerpc64/p8/sha512-compress.asm      | 327 ++++++++++++++++++++++++++
 5 files changed, 744 insertions(+)
 create mode 100644 powerpc64/fat/sha256-compress-n-2.asm
 create mode 100644 powerpc64/fat/sha512-compress-2.asm
 create mode 100644 powerpc64/p8/sha256-compress-n.asm
 create mode 100644 powerpc64/p8/sha512-compress.asm

-- 
2.44.0

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