Handle bitwise operations with literal Smi for 32bits integers without...

src/arm/macro-assembler-arm.h

Index: src/arm/macro-assembler-arm.h
===================================================================
--- src/arm/macro-assembler-arm.h	(revision 5394)
+++ src/arm/macro-assembler-arm.h	(working copy)
@@ -504,6 +504,15 @@
                               Register scratch1,
                               SwVfpRegister scratch2);
 
+  // Convert the HeapNumber pointed to by source to a 32bits signed integer
+  // dest. If the HeapNumber does not fit into a 32bits signed integer branch
+  // to not_int32 label.
+  void ConvertToInt32(Register source,
+                      Register dest,
+                      Register scratch,
+                      Register scratch2,
+                      Label *not_int32);
+
   // Count leading zeros in a 32 bit word.  On ARM5 and later it uses the clz
   // instruction.  On pre-ARM5 hardware this routine gives the wrong answer
   // for 0 (31 instead of 32).  Source and scratch can be the same in which case