fix bad rebase in r27966

src/hydrogen.cc

 // Copyright 2013 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 "src/hydrogen.h"
 
 #include <sstream>
 
 #include "src/v8.h"
 
@@ skipping 6577 matching lines @@
       DCHECK(instr->HasObservableSideEffects());
       Add<HSimulate>(ast_id, REMOVABLE_SIMULATE);
       return;
     }
   }
 
   LookupIterator it(global, var->name(), LookupIterator::OWN);
   GlobalPropertyAccess type = LookupGlobalProperty(var, &it, STORE);
   if (type == kUseCell) {
     Handle<PropertyCell> cell = it.GetPropertyCell();
-    top_info()->dependencies()->AssumePropertyCell(cell);
     auto cell_type = it.property_details().cell_type();
     if (cell_type == PropertyCellType::kConstant ||
         cell_type == PropertyCellType::kUndefined) {
       Handle<Object> constant(cell->value(), isolate());
       if (value->IsConstant()) {
         HConstant* c_value = HConstant::cast(value);
         if (!constant.is_identical_to(c_value->handle(isolate()))) {
           Add<HDeoptimize>(Deoptimizer::kConstantGlobalVariableAssignment,
                            Deoptimizer::EAGER);
         }
@@ skipping 29 matching lines @@
             access = access.WithRepresentation(Representation::HeapObject());
           } else {
             auto dictionary = handle(global->property_dictionary());
             cell = PropertyCell::InvalidateEntry(dictionary,
                                                  it.dictionary_entry());
           }
           break;
         }
       }
     }
+    top_info()->dependencies()->AssumePropertyCell(cell);
     HInstruction* instr = Add<HStoreNamedField>(cell_constant, access, value);
     instr->ClearChangesFlag(kInobjectFields);
     instr->SetChangesFlag(kGlobalVars);
     if (instr->HasObservableSideEffects()) {
       Add<HSimulate>(ast_id, REMOVABLE_SIMULATE);
     }
   } else {
     HValue* global_object = Add<HLoadNamedField>(
         context(), nullptr,
         HObjectAccess::ForContextSlot(Context::GLOBAL_OBJECT_INDEX));
@@ skipping 6377 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal