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

src/arm/full-codegen-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1545 matching lines @@
   __ mov(r0, Operand(Smi::FromInt(size)));
   __ push(r0);
   __ CallRuntime(Runtime::kAllocateInNewSpace, 1);
   __ pop(r5);
 
   __ bind(&allocated);
   // After this, registers are used as follows:
   // r0: Newly allocated regexp.
   // r5: Materialized regexp.
   // r2: temp.
-  __ CopyFields(r0, r5, r2.bit(), size / kPointerSize);
+  __ CopyFields(r0, r5, d0, s0, size / kPointerSize);
   context()->Plug(r0);
 }
 
 
 void FullCodeGenerator::EmitAccessor(Expression* expression) {
   if (expression == NULL) {
     __ LoadRoot(r1, Heap::kNullValueRootIndex);
     __ push(r1);
   } else {
     VisitForStackValue(expression);
@@ skipping 2991 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM