Checking for stack height equality between full codegen and hydrogen.

src/objects-inl.h

 // 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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 700 matching lines @@
   return length >= 0 &&
       length % DeoptimizationInputData::kDeoptEntrySize == 0;
 }
 
 
 bool Object::IsDeoptimizationOutputData() {
   if (!IsFixedArray()) return false;
   // There's actually no way to see the difference between a fixed array and
   // a deoptimization data array.  Since this is used for asserts we can check
   // that the length is plausible though.
-  if (FixedArray::cast(this)->length() % 2 != 0) return false;
-  return true;
+  return (FixedArray::cast(this)->length() %
+      DeoptimizationOutputData::kDeoptPointElementCount == 0);
 }
 
 
 bool Object::IsDependentCode() {
   if (!IsFixedArray()) return false;
   // There's actually no way to see the difference between a fixed array and
   // a dependent codes array.
   return true;
 }
 
@@ skipping 6120 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_