Back strongly rooted literals CLs out of the tree for branch cut

src/crankshaft/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/crankshaft/hydrogen.h"
 
 #include <memory>
 #include <sstream>
 
 #include "src/allocation-site-scopes.h"
@@ skipping 11771 matching lines @@
   VariableProxy* proxy = declaration->proxy();
   Variable* variable = proxy->var();
   DCHECK(!variable->binding_needs_init());
   switch (variable->location()) {
     case VariableLocation::UNALLOCATED: {
       globals_.Add(variable->name(), zone());
       FeedbackVectorSlot slot = proxy->VariableFeedbackSlot();
       DCHECK(!slot.IsInvalid());
       globals_.Add(handle(Smi::FromInt(slot.ToInt()), isolate()), zone());
       globals_.Add(isolate()->factory()->undefined_value(), zone());
-      globals_.Add(isolate()->factory()->undefined_value(), zone());
       return;
     }
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL:
     case VariableLocation::CONTEXT:
       break;
     case VariableLocation::LOOKUP:
       return Bailout(kUnsupportedLookupSlotInDeclaration);
     case VariableLocation::MODULE:
       UNREACHABLE();
   }
 }
 
 
 void HOptimizedGraphBuilder::VisitFunctionDeclaration(
     FunctionDeclaration* declaration) {
   VariableProxy* proxy = declaration->proxy();
   Variable* variable = proxy->var();
   switch (variable->location()) {
     case VariableLocation::UNALLOCATED: {
       globals_.Add(variable->name(), zone());
       FeedbackVectorSlot slot = proxy->VariableFeedbackSlot();
       DCHECK(!slot.IsInvalid());
       globals_.Add(handle(Smi::FromInt(slot.ToInt()), isolate()), zone());
-
-      // We need the slot where the literals array lives, too.
-      slot = declaration->fun()->LiteralFeedbackSlot();
-      DCHECK(!slot.IsInvalid());
-      globals_.Add(handle(Smi::FromInt(slot.ToInt()), isolate()), zone());
-
       Handle<SharedFunctionInfo> function = Compiler::GetSharedFunctionInfo(
           declaration->fun(), current_info()->script(), top_info());
       // Check for stack-overflow exception.
       if (function.is_null()) return SetStackOverflow();
       globals_.Add(function, zone());
       return;
     }
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL: {
       CHECK_ALIVE(VisitForValue(declaration->fun()));
@@ skipping 1113 matching lines @@
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 }  // namespace internal
 }  // namespace v8