ARM: Improve register allocation and constraints....

src/arm/macro-assembler-arm.h

Index: src/arm/macro-assembler-arm.h
===================================================================
--- src/arm/macro-assembler-arm.h	(revision 8362)
+++ src/arm/macro-assembler-arm.h	(working copy)
@@ -143,7 +143,7 @@
 
   // Register move. May do nothing if the registers are identical.
   void Move(Register dst, Handle<Object> value);
-  void Move(Register dst, Register src);
+  void Move(Register dst, Register src, Condition cond = al);
   void Move(DoubleRegister dst, DoubleRegister src);
 
   // Load an object from the root table.
@@ -312,7 +312,11 @@
                               const Register fpscr_flags,
                               const Condition cond = al);
 
+  void Vmov(const DwVfpRegister dst,
+            const double imm,
+            const Condition cond = al);
 
+
   // ---------------------------------------------------------------------------
   // Activation frames