From: Vasily Leonenko <vasiliy.leonenko@gmail.com>
Date: Sat, 23 Aug 2025 09:27:22 +0000 (+0300)
Subject: runtime: use DC ZVA instead of its encoding in WORD in arm64 memclr
X-Git-Tag: go1.26rc1~599
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=e7351c03c8;p=gostls13.git

runtime: use DC ZVA instead of its encoding in WORD in arm64 memclr

Change-Id: I900a96b985f4d9378d25b9256c4274610fc2f70e
Reviewed-on: https://go-review.googlesource.com/c/go/+/698417
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
---

diff --git a/src/runtime/memclr_arm64.s b/src/runtime/memclr_arm64.s
index 3e49f7fcf6..3f8acdaeff 100644
--- a/src/runtime/memclr_arm64.s
+++ b/src/runtime/memclr_arm64.s
@@ -176,7 +176,7 @@ aligned:
 
 	PCALIGN	$16
 loop_zva:
-	WORD	$0xd50b7420 // DC ZVA, R0
+	DC	ZVA, R0
 	ADD	R5, R0, R0
 	SUBS	R5, R1, R1
 	BHS	loop_zva