From ece132020b3a7bdb99e98da0de9fe997fe5fe7f0 Mon Sep 17 00:00:00 2001
From: Naresh Babu Saladi <c_nsalad@quicinc.com>
Date: Wed, 19 Aug 2009 11:56:47 -0700
Subject: memcpy: change pre-load instruction to use source address register

In case of 32-bit aligned memcpy, pre-load the contents of source.
Currently, pre-load instruction uses register r12, which doesn't
point to source address and thus effectively a no-op in the code.
---
 libc/arch-arm/bionic/memcpy.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libc')

diff --git a/libc/arch-arm/bionic/memcpy.S b/libc/arch-arm/bionic/memcpy.S
index 1e8f5f6..215d76e 100644
--- a/libc/arch-arm/bionic/memcpy.S
+++ b/libc/arch-arm/bionic/memcpy.S
@@ -141,7 +141,7 @@ cached_aligned32:
          */
 
 1:      ldmia       r1!, { r4-r11 }
-        PLD         [r12, #32]
+        PLD         [r1, #32]
         subs        r2, r2, #32
 
         stmia       r0!, { r4-r11 }
-- 
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