Skip canonicalization of packed arrays in HStoreKeyedFastDoubleElement

src/hydrogen-instructions.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 2171 matching lines @@
     return left();
   }
   return NULL;
 }
 
 
 bool HStoreKeyedFastDoubleElement::NeedsCanonicalization() {
   // If value was loaded from unboxed double backing store or
   // converted from an integer then we don't have to canonicalize it.
   if (value()->IsLoadKeyedFastDoubleElement() ||
+      SkipCanonicalization::decode(bit_field_) ||
       (value()->IsChange() && HChange::cast(value())->from().IsInteger32())) {
     return false;
   }
   return true;
 }
 
 
 #define H_CONSTANT_INT32(val)                                                  \
 new(zone) HConstant(FACTORY->NewNumberFromInt(val, TENURED),                   \
                     Representation::Integer32())
@@ skipping 249 matching lines @@
 
 
 void HCheckPrototypeMaps::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal