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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>
This commit is contained in:
Masahiro Yamada 2017-01-27 16:15:30 +09:00 committed by Tom Rini
parent b913c3f079
commit 07a63c7e7d
1 changed files with 1 additions and 2 deletions
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3
arch/arm/lib/crt0_64.S
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@ -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