MIPS: Avoid HeapObject check in HStoreNamedField.

src/mips/macro-assembler-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
@@ skipping 38 matching lines @@
 
 void MacroAssembler::Store(Register src,
                            const MemOperand& dst,
                            Representation r) {
   ASSERT(!r.IsDouble());
   if (r.IsInteger8() || r.IsUInteger8()) {
     sb(src, dst);
   } else if (r.IsInteger16() || r.IsUInteger16()) {
     sh(src, dst);
   } else {
+    if (r.IsHeapObject()) {
+      AssertNotSmi(src);
+    } else if (r.IsSmi()) {
+      AssertSmi(src);
+    }
     sw(src, dst);
   }
 }
 
 
 void MacroAssembler::LoadRoot(Register destination,
                               Heap::RootListIndex index) {
   lw(destination, MemOperand(s6, index << kPointerSizeLog2));
 }
 
@@ skipping 5652 matching lines @@
   }
   if (ms.shift() > 0) sra(result, result, ms.shift());
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS