From: Andy Polyakov <appro@openssl.org>
Date: Sat, 1 Feb 2014 23:09:17 +0000 (+0100)
Subject: modes/asm/ghash-s390x.pl: +15% performance improvement on z10.
X-Git-Tag: OpenSSL_1_0_2-beta1~62
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0693dd954e1d1cd811782f0cb429cb9ca46ecddd;p=oweals%2Fopenssl.git

modes/asm/ghash-s390x.pl: +15% performance improvement on z10.
(cherry picked from commit d162584b1154153d997fed18a9df2e60771fe06c)
---

diff --git a/crypto/modes/asm/ghash-s390x.pl b/crypto/modes/asm/ghash-s390x.pl
index 6a40d5d89c..39096b423a 100644
--- a/crypto/modes/asm/ghash-s390x.pl
+++ b/crypto/modes/asm/ghash-s390x.pl
@@ -186,13 +186,13 @@ $code.=<<___;
 	sllg	$rem1,$Zlo,3
 	xgr	$Zlo,$tmp
 	ngr	$rem1,$x78
+	sllg	$tmp,$Zhi,60
 	j	.Lghash_inner
 .align	16
 .Lghash_inner:
 	srlg	$Zlo,$Zlo,4
-	sllg	$tmp,$Zhi,60
-	xg	$Zlo,8($nlo,$Htbl)
 	srlg	$Zhi,$Zhi,4
+	xg	$Zlo,8($nlo,$Htbl)
 	llgc	$xi,0($cnt,$Xi)
 	xg	$Zhi,0($nlo,$Htbl)
 	sllg	$nlo,$xi,4
@@ -213,9 +213,9 @@ $code.=<<___;
 	sllg	$rem1,$Zlo,3
 	xgr	$Zlo,$tmp
 	ngr	$rem1,$x78
+	sllg	$tmp,$Zhi,60
 	brct	$cnt,.Lghash_inner
 
-	sllg	$tmp,$Zhi,60
 	srlg	$Zlo,$Zlo,4
 	srlg	$Zhi,$Zhi,4
 	xg	$Zlo,8($nlo,$Htbl)