From: Martin Schwenke <martin@meltin.net>
Date: Thu, 1 Jul 2021 04:23:50 +0000 (+1000)
Subject: bn: Use a basic branch-if-not-zero
X-Git-Tag: openssl-3.0.0-beta2~116
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf9b78214d651f84ca328506fee1bd0bd857fed8;p=thirdparty%2Fopenssl.git

bn: Use a basic branch-if-not-zero

Ancient toolchains fail the build because they don't like the hints,
newer ISAs recommend not using the hints and relying on dynamic branch
prediction.

Signed-off-by: Martin Schwenke <martin@meltin.net>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15971)
---

diff --git a/crypto/bn/asm/ppc64-mont-fixed.pl b/crypto/bn/asm/ppc64-mont-fixed.pl
index da4967a730f..ce666117597 100755
--- a/crypto/bn/asm/ppc64-mont-fixed.pl
+++ b/crypto/bn/asm/ppc64-mont-fixed.pl
@@ -267,7 +267,7 @@ ___
 	addze		$tp[$n],$tp[$n+1]
 
 	addi		$i,$i,$SIZE_T
-	bc		25,0,$label->{"outer"}
+	bdnz		$label->{"outer"}
 
 	and.		$tp[$n],$tp[$n],$tp[$n]
 	bne		$label->{"sub"}