Dedupe code for array/object initialization on ARM.

runtime/vm/intermediate_language_arm.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/cpu.h"
@@ skipping 2212 matching lines @@
       intptr_t current_offset = 0;
       while (current_offset + kWordSize < array_size) {
         __ strd(R6, Address(R8, current_offset));
         current_offset += 2*kWordSize;
       }
       while (current_offset < array_size) {
         __ str(R6, Address(R8, current_offset));
         current_offset += kWordSize;
       }
     } else {
-      Label init_loop;
-      __ Bind(&init_loop);
-      __ AddImmediate(R8, 2 * kWordSize);
-      __ cmp(R8, Operand(R3));
-      __ strd(R6, Address(R8, -2 * kWordSize), LS);
-      __ b(&init_loop, CC);
-      __ str(R6, Address(R8, -2 * kWordSize), HI);
+      __ InitializeFieldsNoBarrier(R0, R8, R3, R6, R7);
     }
   }
   __ b(done);
 }
 
 
 void CreateArrayInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   const Register kLengthReg = R2;
   const Register kElemTypeReg = R1;
   const Register kResultReg = R0;
@@ skipping 4500 matching lines @@
   compiler->GenerateCall(token_pos(), &label, stub_kind_, locs());
 #if defined(DEBUG)
   __ LoadImmediate(R4, kInvalidObjectPointer);
   __ LoadImmediate(R5, kInvalidObjectPointer);
 #endif
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM