[turbofan] Sparse representation for state values

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 652 matching lines @@
   } else {
     DCHECK(static_cast<size_t>(offset + count) <= values()->size());
     for (int i = 0; i < count; i++) {
       if ((*state_values)->InputAt(i) != env_values[i]) {
         should_update = true;
         break;
       }
     }
   }
   if (should_update) {
-    const Operator* op = common()->StateValues(count);
+    const Operator* op = common()->StateValues(count, SparseInputMask::Dense());
     (*state_values) = graph()->NewNode(op, count, env_values);
   }
 }
 
 
 Node* AstGraphBuilder::Environment::Checkpoint(BailoutId ast_id,
                                                OutputFrameStateCombine combine,
                                                bool owner_has_exception) {
   if (!builder()->info()->is_deoptimization_enabled()) {
     return builder()->GetEmptyFrameState();
@@ skipping 2613 matching lines @@
     float invocation_frequency, LoopAssignmentAnalysis* loop_assignment,
     SourcePositionTable* source_positions, int inlining_id)
     : AstGraphBuilder(local_zone, info, jsgraph, invocation_frequency,
                       loop_assignment),
       source_positions_(source_positions),
       start_position_(info->shared_info()->start_position(), inlining_id) {}
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8