MIPS: Specialize FixedTypedArray<> set and get functions to solve unaligned double access.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 3f178c0abac12075a204d05e98b7877321b7e97b..1ea9441b7e5b3507f37075f87f862fdb53639d32 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -3675,6 +3675,15 @@ typename Traits::ElementType FixedTypedArray<Traits>::get_scalar(int index) {
   return ptr[index];
 }
 
+
+template<> inline
+FixedTypedArray<Float64ArrayTraits>::ElementType
+    FixedTypedArray<Float64ArrayTraits>::get_scalar(int index) {
+  ASSERT((index >= 0) && (index < this->length()));
+  return READ_DOUBLE_FIELD(this, ElementOffset(index));
+}
+
+
 template <class Traits>
 void FixedTypedArray<Traits>::set(int index, ElementType value) {
   ASSERT((index >= 0) && (index < this->length()));
@@ -3684,6 +3693,14 @@ void FixedTypedArray<Traits>::set(int index, ElementType value) {
 }
 
 
+template<> inline
+void FixedTypedArray<Float64ArrayTraits>::set(
+    int index, Float64ArrayTraits::ElementType value) {
+  ASSERT((index >= 0) && (index < this->length()));
+  WRITE_DOUBLE_FIELD(this, ElementOffset(index), value);
+}
+
+
 template <class Traits>
 MaybeObject* FixedTypedArray<Traits>::get(int index) {
   return Traits::ToObject(GetHeap(), get_scalar(index));