MIPS: Add big-endian support for MIPS.

src/mips/ic-mips.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 900 matching lines @@
     // Check for fast double array case. If this fails, call through to the
     // runtime.
     __ LoadRoot(at, Heap::kFixedDoubleArrayMapRootIndex);
     __ Branch(slow, ne, elements_map, Operand(at));
   }
 
   // HOLECHECK: guards "A[i] double hole?"
   // We have to see if the double version of the hole is present. If so
   // go to the runtime.
   __ Addu(address, elements,
-          Operand(FixedDoubleArray::kHeaderSize + sizeof(kHoleNanLower32)
+          Operand(FixedDoubleArray::kHeaderSize + kHoleNanUpper32Offset
                   - kHeapObjectTag));
   __ sll(at, key, kPointerSizeLog2);
   __ addu(address, address, at);
   __ lw(scratch_value, MemOperand(address));
   __ Branch(&fast_double_without_map_check, ne, scratch_value,
             Operand(kHoleNanUpper32));
   __ JumpIfDictionaryInPrototypeChain(receiver, elements_map, scratch_value,
                                       slow);
 
   __ bind(&fast_double_without_map_check);
@@ skipping 418 matching lines @@
   } else {
     ASSERT(Assembler::IsBne(branch_instr));
     patcher.ChangeBranchCondition(eq);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS