From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 27 Jan 2017 07:15:30 +0000 (+0900)
Subject: arm64: use store with auto-increment
X-Git-Tag: v2017.03-rc2~37
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=07a63c7e7de28ddc6cdc7d8c1e75a69b35dc6332;p=oweals%2Fu-boot.git

arm64: use store with auto-increment

Save one instruction.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S
index f8e84b2fc8..19c6a985cd 100644
--- a/arch/arm/lib/crt0_64.S
+++ b/arch/arm/lib/crt0_64.S
@@ -118,8 +118,7 @@ relocation_return:
 	ldr	x0, =__bss_start		/* this is auto-relocated! */
 	ldr	x1, =__bss_end			/* this is auto-relocated! */
 clear_loop:
-	str	xzr, [x0]
-	add	x0, x0, #8
+	str	xzr, [x0], #8
 	cmp	x0, x1
 	b.lo	clear_loop