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authorMasahiro Yamada <yamada.masahiro@socionext.com>2017-01-27 16:15:30 +0900
committerTom Rini <trini@konsulko.com>2017-02-08 09:17:31 -0500
commit07a63c7e7de28ddc6cdc7d8c1e75a69b35dc6332 (patch)
tree34877a1b6377782637b7e05a610895bd5dbcd0a2
parentb913c3f0790a4785b2cf0afa49d4c3e4ffddc2cd (diff)
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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>
-rw-r--r--arch/arm/lib/crt0_64.S3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S
index f8e84b2..19c6a98 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