Update V8 to r4851 as required by WebKit r61121
Change-Id: Ib01b7c8e38d5b82b254192fc06365aa5b85780c5
diff --git a/src/arm/constants-arm.h b/src/arm/constants-arm.h
index 57c5c1c..e36f595 100644
--- a/src/arm/constants-arm.h
+++ b/src/arm/constants-arm.h
@@ -66,10 +66,15 @@
# define CAN_USE_THUMB_INSTRUCTIONS 1
#endif
-// Simulator should support ARM5 instructions.
+// Simulator should support ARM5 instructions and unaligned access by default.
#if !defined(__arm__)
# define CAN_USE_ARMV5_INSTRUCTIONS 1
# define CAN_USE_THUMB_INSTRUCTIONS 1
+
+# ifndef CAN_USE_UNALIGNED_ACCESSES
+# define CAN_USE_UNALIGNED_ACCESSES 1
+# endif
+
#endif
#if CAN_USE_UNALIGNED_ACCESSES