A64: Fix CallStubCompiler::CompileArrayPushCall

src/a64/stub-cache-a64.cc

 // Copyright 2013 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 1733 matching lines @@
       __ Str(value, MemOperand(end_elements, kEndElementsOffset, PreIndex));
 
       // Return length.
       __ Drop(argc + 1);
       __ Mov(x0, length);
       __ Ret();
 
       __ Bind(&check_double);
       // Check that the elements are in fast mode and writable.
       __ CheckMap(elements,
-                  x0,
+                  x10,
                   Heap::kFixedDoubleArrayMapRootIndex,
                   &call_builtin,
                   DONT_DO_SMI_CHECK);
 
       // Get the array's length and calculate new length.
       Register old_length = x5;
       __ Ldr(old_length, FieldMemOperand(receiver, JSArray::kLengthOffset));
       STATIC_ASSERT(kSmiTag == 0);
       __ Add(length, old_length, Operand(Smi::FromInt(argc)));
 
@@ skipping 1241 matching lines @@
 
   // Miss case, call the runtime.
   __ Bind(&miss);
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64