From 44e3b1d3edb9001661f0ec29c69eddc872c874e3 Mon Sep 17 00:00:00 2001
From: tedu <tedu@openbsd.org>
Date: Thu, 18 Dec 2014 20:29:08 +0000
Subject: [PATCH] only unroll on i386 and amd64 (where confirmed to be much
 faster). naddy found sparc64 gets a little slower when unrolled. ok deraadt

---
 lib/libc/hash/sha2.c | 4 +++-
 sys/crypto/sha2.c    | 5 +++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/lib/libc/hash/sha2.c b/lib/libc/hash/sha2.c
index db6046cf689..f77dc6b54fa 100644
--- a/lib/libc/hash/sha2.c
+++ b/lib/libc/hash/sha2.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sha2.c,v 1.19 2014/12/17 19:42:44 tedu Exp $	*/
+/*	$OpenBSD: sha2.c,v 1.20 2014/12/18 20:29:08 tedu Exp $	*/
 
 /*
  * FILE:	sha2.c
@@ -52,7 +52,9 @@
  *   #define SHA2_UNROLL_TRANSFORM
  *
  */
+#if defined(__amd64__) || defined(__i386__)
 #define SHA2_UNROLL_TRANSFORM
+#endif
 
 /*** SHA-224/256/384/512 Machine Architecture Definitions *****************/
 /*
diff --git a/sys/crypto/sha2.c b/sys/crypto/sha2.c
index 06912c32d70..5ccb340214d 100644
--- a/sys/crypto/sha2.c
+++ b/sys/crypto/sha2.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sha2.c,v 1.10 2014/12/17 19:40:24 tedu Exp $	*/
+/*	$OpenBSD: sha2.c,v 1.11 2014/12/18 20:29:08 tedu Exp $	*/
 
 /*
  * FILE:	sha2.c
@@ -53,9 +53,10 @@
  *
  */
 #ifndef SMALL_KERNEL
+#if defined(__amd64__) || defined(__i386__)
 #define SHA2_UNROLL_TRANSFORM
 #endif
-
+#endif
 
 /*** SHA-256/384/512 Machine Architecture Definitions *****************/
 /*
-- 
2.20.1