ARM: Small copy optimization. Copying 64bits at a time.

src/arm/macro-assembler-arm.h

Index: src/arm/macro-assembler-arm.h
diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h
index e72b676708fe8d0280f29a70f9c1daa9fb6f1dc1..75ff64fc055570e8031254376c656d74cfd28f62 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -743,7 +743,11 @@ class MacroAssembler: public Assembler {
                                    Label* gc_required);
 
   // Copies a fixed number of fields of heap objects from src to dst.
-  void CopyFields(Register dst, Register src, RegList temps, int field_count);
+  void CopyFields(Register dst,
+                  Register src,
+                  DwVfpRegister double_scratch,
+                  SwVfpRegister single_scratch,
+                  int field_count);
 
   // Copies a number of bytes from src to dst. All registers are clobbered. On
   // exit src and dst will point to the place just after where the last byte was