From d1c9b0393727e51fedc21d845db69f7c1dd84cd0 Mon Sep 17 00:00:00 2001
From: kaiburjack <kb@hbt.de>
Date: Mon, 15 Aug 2022 20:07:20 +0200
Subject: [PATCH] Zero ymm2 with vpxor xmm2 using AVX's implicit zeroing of
 upper register parts

https://stackoverflow.com/questions/44578967/what-is-the-most-efficient-way-to-clear-a-single-or-a-few-zmm-registers-on-knigh#answer-44841054
---
 sse_amd64.s | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sse_amd64.s b/sse_amd64.s
index 8016696..f7223fd 100644
--- a/sse_amd64.s
+++ b/sse_amd64.s
@@ -48,7 +48,7 @@ TEXT ·onlySpaces32(SB),NOSPLIT, $0
     VMOVDQU (DI), Y0
     VMOVDQA Y0, Y1
     VPCMPGTB ·spc<>(SB), Y0, Y0
-    VPXOR Y2, Y2, Y2
+    VPXOR X2, X2, X2
     VPCMPGTB Y1, Y2, Y2
     VPOR Y2, Y0, Y0
     VPMOVMSKB Y0, AX