eiac/crypto
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

x/crypto/blake2b: SSE4.1 is bit 19, not 15.

Browse Source 
I missed this in the initial review but this will cause blake2b to
SIGILL on, at least, some Atom chips.

Fixes golang/go#18113.

Change-Id: I0c16319df71f3ce4a38411ad4c4e9d3871fd9533
Reviewed-on: https://go-review.googlesource.com/33830
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Adam Langley
2016-12-01 19:22:57 +00:00
parent 21853a76e0
commit 7efbae5d10
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
blake2b/blake2b_amd64.s
+1 -1
View File
@@ -269,7 +269,7 @@ noinc:
TEXT ·supportSSE4(SB), 4, $0-1
MOVL $1, AX
CPUID
SHRL $15, CX // Bit 15 indicates SSE4 support
SHRL $19, CX // Bit 19 indicates SSE4 support
ANDL $1, CX // CX != 0 if support SSE4
MOVB CX, ret+0(FP)
RET