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>
8 years ago · 07a63c7e7d
parent b913c3f079
commit 07a63c7e7d
1 changed files with 1 additions and 2 deletions
--- 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