From 0e1fc52851be58fe4a06410556f62da47154c3c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Sat, 28 Nov 2020 14:24:43 +0100
Subject: ppc: Use vaddcuw instruction.

---
 powerpc64/p7/chacha-2core.asm | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'powerpc64')

diff --git a/powerpc64/p7/chacha-2core.asm b/powerpc64/p7/chacha-2core.asm
index 265918b6..4d4f4906 100644
--- a/powerpc64/p7/chacha-2core.asm
+++ b/powerpc64/p7/chacha-2core.asm
@@ -73,9 +73,7 @@ PROLOGUE(_nettle_chacha_2core)
 
 	lxvw4x	VSR(X3), r8, SRC
 
-	vsubuwm	X0, X0, X1	C {-1,0,...,0}
-	vcmpequw Y3, X3, X0
-	vand	Y3, Y3, X1	C Counter carry out
+	vaddcuw	Y3, X3, X1	C Counter carry out
 	vsldoi	Y3, Y3, Y3, 12
 	vor	Y3, Y3, X1
 
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