crypto: x86/sha256-ni - simplify do_4rounds

Browse source

Instead of loading the message words into both MSG and \m0 and then
adding the round constants to MSG, load the message words into \m0 and
the round constants into MSG and then add \m0 to MSG.  This shortens the
source code slightly.  It changes the instructions slightly, but it
doesn't affect binary code size and doesn't seem to affect performance.

Suggested-by: Stefan Kanthak <stefan.kanthak@nexgo.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

...

This commit is contained in:

Eric Biggers 2024-04-11 09:23:59 -07:00 • committed by Herbert Xu

parent 59e62b20ac

commit 7daba20cc7

1 changed files with 4 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

10

arch/x86/crypto/sha256_ni_asm.S

View file