* Make compiler happy by adding unreachable variable assignment.

src/jsregexp.cc

 // Copyright 2006-2008 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 513 matching lines @@
         // Capture values are relative to start_offset only.
         for (int i = 0; i < offsets_vector_length; i++) {
           if (offsets_vector[i] >= 0) {
             offsets_vector[i] += previous_index;
           }
         }
       }
       break;
 #else
       UNIMPLEMENTED();
+      rc = false;
       break;
 #endif
     }
     case RegExpMacroAssembler::kBytecodeImplementation: {
       Handle<ByteArray> byte_codes = IrregexpCode(regexp);
 
       rc = IrregexpInterpreter::Match(byte_codes,
                                       two_byte_subject,
                                       offsets_vector,
                                       previous_index);
@@ skipping 2174 matching lines @@
   if (!FLAG_irregexp) {
     return Handle<FixedArray>::null();
   }
 
   if (is_multiline && !FLAG_attempt_multiline_irregexp) {
     return Handle<FixedArray>::null();
   }
 
   if (FLAG_irregexp_native) {
 #ifdef ARM
-    UNIMPLEMENTED();
+    // Unimplemented, fall-through to bytecode implementation.
 #else  // IA32
     RegExpMacroAssemblerIA32 macro_assembler(RegExpMacroAssemblerIA32::UC16,
                                              (input->capture_count + 1) * 2);
     return compiler.Assemble(&macro_assembler,
                              node,
                              input->capture_count);
 #endif
   }
   EmbeddedVector<byte, 1024> codes;
   RegExpMacroAssemblerIrregexp macro_assembler(codes);
   return compiler.Assemble(&macro_assembler,
                            node,
                            input->capture_count);
 }
 
 
 }}  // namespace v8::internal