tree bf266639a07af86b4e38c98709361456dbbaa7bf
parent 74c2ba9521f1b7082a53cd34a0c4a01284cbd99b
author Mauri de Souza Meneguzzo <mauri870@gmail.com> 1699382089 +0000
committer Russ Cox <rsc@golang.org> 1699396577 +0000

chacha20poly1305: guard PSHUFB usage with GOAMD64_v2

The PSHUFB instruction is part of SSE which is only v2+ but it is being
used without the GOAMD64_v2 guard.

The ROL macros were copied from CL 516859 that adds internal/chacha8rand.

Fixes golang/go#63871

Change-Id: I3c8ba75ff284cda4fc788885643246936e617b85
GitHub-Last-Rev: e235e8eae67f16b3a58817cfdff729693faf2665
GitHub-Pull-Request: golang/crypto#275
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/538786
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Mauri de Souza Meneguzzo <mauri870@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>