From 33446493f4ccd26562431b25fad304cfe857c887 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Sat, 9 Nov 2013 11:41:59 +0100
Subject: [PATCH] modes/asm/ghash-alpha.pl: make it work with older assembler
 for real.

PR: 3165
---
 crypto/modes/asm/ghash-alpha.pl | 36 +++++++++++++++++++++------------
 1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/crypto/modes/asm/ghash-alpha.pl b/crypto/modes/asm/ghash-alpha.pl
index f47c85eb1f..80fefbdfaa 100644
--- a/crypto/modes/asm/ghash-alpha.pl
+++ b/crypto/modes/asm/ghash-alpha.pl
@@ -254,15 +254,6 @@ $code=<<___;
 
 .text
 
-.align	4
-rem_4bit:
-	.quad	0x0000<<48, 0x1C20<<48, 0x3840<<48, 0x2460<<48
-	.quad	0x7080<<48, 0x6CA0<<48, 0x48C0<<48, 0x54E0<<48
-	.quad	0xE100<<48, 0xFD20<<48, 0xD940<<48, 0xC560<<48
-	.quad	0x9180<<48, 0x8DA0<<48, 0xA9C0<<48, 0xB5E0<<48
-.ascii	"GHASH for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
-.align	4
-
 .set	noat
 .set	noreorder
 .globl	gcm_gmult_4bit
@@ -275,8 +266,8 @@ gcm_gmult_4bit:
 	ldq	$Xlo,8($Xi)
 	ldq	$Xhi,0($Xi)
 
-	br	$rem_4bit,.Lpic1
-.Lpic1:	lda	$rem_4bit,.Lpic1-rem_4bit($rem_4bit)
+	bsr	$t0,picmeup
+	nop
 ___
 
 	&loop();
@@ -350,8 +341,8 @@ gcm_ghash_4bit:
 	ldq	$Xhi,0($Xi)
 	ldq	$Xlo,8($Xi)
 
-	br	$rem_4bit,.Lpic2
-.Lpic2:	lda	$rem_4bit,.Lpic2-rem_4bit($rem_4bit)
+	bsr	$t0,picmeup
+	nop
 
 .Louter:
 	extql	$inhi,$inp,$inhi
@@ -443,6 +434,25 @@ $code.=<<___;
 	lda	sp,32(sp)
 	ret	(ra)
 .end	gcm_ghash_4bit
+
+.align	4
+.ent	picmeup
+picmeup:
+	.FRame	sp,0,$t0
+	.prologue 0
+	br	$rem_4bit,.Lpic
+.Lpic:	lda	$rem_4bit,12($rem_4bit)
+	ret	($t0)
+.end	picmeup
+	nop
+rem_4bit:
+	.long	0,0x0000<<16, 0,0x1C20<<16, 0,0x3840<<16, 0,0x2460<<16
+	.long	0,0x7080<<16, 0,0x6CA0<<16, 0,0x48C0<<16, 0,0x54E0<<16
+	.long	0,0xE100<<16, 0,0xFD20<<16, 0,0xD940<<16, 0,0xC560<<16
+	.long	0,0x9180<<16, 0,0x8DA0<<16, 0,0xA9C0<<16, 0,0xB5E0<<16
+.ascii	"GHASH for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
+.align	4
+
 ___
 $output=shift and open STDOUT,">$output";
 print $code;
-- 
2.25.1