[turbofan] Do not use the state value cache when building the tree

src/compiler/ast-graph-builder.cc

 // Copyright 2014 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/compiler/ast-graph-builder.h"
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/compilation-info.h"
 #include "src/compiler.h"
@@ skipping 823 matching lines @@
       }
     }
   }
   if (should_update) {
     const Operator* op = common()->StateValues(count);
     (*state_values) = graph()->NewNode(op, count, env_values);
   }
 }
 
 
-void AstGraphBuilder::Environment::UpdateStateValuesWithCache(
-    Node** state_values, int offset, int count) {
-  Node** env_values = (count == 0) ? nullptr : &values()->at(offset);
-  *state_values = builder_->state_values_cache_.GetNodeForValues(
-      env_values, static_cast<size_t>(count));
-}
-
 Node* AstGraphBuilder::Environment::Checkpoint(BailoutId ast_id,
                                                OutputFrameStateCombine combine,
                                                bool owner_has_exception) {
   if (!builder()->info()->is_deoptimization_enabled()) {
     return builder()->GetEmptyFrameState();
   }
 
   UpdateStateValues(&parameters_node_, 0, parameters_count());
-  UpdateStateValuesWithCache(&locals_node_, parameters_count(), locals_count());
+  UpdateStateValues(&locals_node_, parameters_count(), locals_count());
   UpdateStateValues(&stack_node_, parameters_count() + locals_count(),
                     stack_height());
 
   const Operator* op = common()->FrameState(
       ast_id, combine, builder()->frame_state_function_info());
 
   Node* result = graph()->NewNode(op, parameters_node_, locals_node_,
                                   stack_node_, builder()->current_context(),
                                   builder()->GetFunctionClosure(),
                                   builder()->graph()->start());
@@ skipping 3503 matching lines @@
     TypeHintAnalysis* type_hint_analysis, SourcePositionTable* source_positions,
     int inlining_id)
     : AstGraphBuilder(local_zone, info, jsgraph, invocation_frequency,
                       loop_assignment, type_hint_analysis),
       source_positions_(source_positions),
       start_position_(info->shared_info()->start_position(), inlining_id) {}
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8