ARM: Enable VFP default NaN mode

src/arm/lithium-arm.h

 // 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 2158 matching lines @@
   LOperand* key() { return inputs_[1]; }
   LOperand* value() { return inputs_[2]; }
   ElementsKind elements_kind() const {
     return hydrogen()->elements_kind();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyed, "store-keyed")
   DECLARE_HYDROGEN_ACCESSOR(StoreKeyed)
 
   virtual void PrintDataTo(StringStream* stream);
-  bool NeedsCanonicalization() { return hydrogen()->NeedsCanonicalization(); }
+  bool NeedsCanonicalization() {
+    if (hydrogen()->value()->IsAdd() || hydrogen()->value()->IsSub() ||
+        hydrogen()->value()->IsMul() || hydrogen()->value()->IsDiv()) {
+      return false;
+    }
+    return hydrogen()->NeedsCanonicalization();
+  }
   uint32_t additional_index() const { return hydrogen()->index_offset(); }
 };
 
 
 class LStoreKeyedGeneric: public LTemplateInstruction<0, 3, 0> {
  public:
   LStoreKeyedGeneric(LOperand* obj, LOperand* key, LOperand* value) {
     inputs_[0] = obj;
     inputs_[1] = key;
     inputs_[2] = value;
@@ skipping 651 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_LITHIUM_ARM_H_