Cleanup of some comparisons 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/dart_entry.h"
@@ skipping 1722 matching lines @@
         ASSERT(value_cid_reg != kNoRegister);
         if ((field_cid == kArrayCid) || (field_cid == kImmutableArrayCid)) {
           // Destroy value_cid_reg (safe because we are finished with it).
           __ ldr(value_cid_reg,
                  FieldAddress(value_reg, Array::length_offset()));
         } else if (RawObject::IsTypedDataClassId(field_cid)) {
           // Destroy value_cid_reg (safe because we are finished with it).
           __ ldr(value_cid_reg,
                  FieldAddress(value_reg, TypedData::length_offset()));
         }
-        __ LoadImmediate(IP, field_length);
-        __ cmp(value_cid_reg, ShifterOperand(IP));
+        __ CompareImmediate(value_cid_reg, field_length);
         if (ok_is_fall_through) {
           __ b(fail, NE);
         }
       } else {
         // Nothing to emit.
         ASSERT(!compiler->is_optimizing());
         return;
       }
     }
   }
@@ skipping 2924 matching lines @@
   compiler->GenerateCall(token_pos(),
                          &label,
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM