1 files changed, 45 insertions, 0 deletions
diff --git a/deps/v8/src/compiler/add-type-assertions-reducer.h b/deps/v8/src/compiler/add-type-assertions-reducer.h
new file mode 100644
index 0000000000..36add040e1
--- /dev/null
+++ b/deps/v8/src/compiler/add-type-assertions-reducer.h
@@ -0,0 +1,45 @@
+// Copyright 2019 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.
+
+#ifndef V8_COMPILER_ADD_TYPE_ASSERTIONS_REDUCER_H_
+#define V8_COMPILER_ADD_TYPE_ASSERTIONS_REDUCER_H_
+
+#include "src/common/globals.h"
+#include "src/compiler/graph-reducer.h"
+#include "src/compiler/js-graph.h"
+#include "src/compiler/node-aux-data.h"
+#include "src/compiler/simplified-operator.h"
+
+namespace v8 {
+namespace internal {
+
+namespace compiler {
+
+class V8_EXPORT_PRIVATE AddTypeAssertionsReducer final
+    : public NON_EXPORTED_BASE(AdvancedReducer) {
+ public:
+  AddTypeAssertionsReducer(Editor* editor, JSGraph* jsgraph, Zone* zone);
+  ~AddTypeAssertionsReducer() final;
+
+  const char* reducer_name() const override {
+    return "AddTypeAssertionsReducer";
+  }
+
+  Reduction Reduce(Node* node) final;
+
+ private:
+  JSGraph* const jsgraph_;
+  NodeAuxData<bool> visited_;
+
+  Graph* graph() { return jsgraph_->graph(); }
+  SimplifiedOperatorBuilder* simplified() { return jsgraph_->simplified(); }
+
+  DISALLOW_COPY_AND_ASSIGN(AddTypeAssertionsReducer);
+};
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_COMPILER_ADD_TYPE_ASSERTIONS_REDUCER_H_