1 files changed, 53 insertions, 0 deletions
diff --git a/deps/v8/src/torque/csa-generator.h b/deps/v8/src/torque/csa-generator.h
new file mode 100644
index 0000000000..78fccebd6d
--- /dev/null
+++ b/deps/v8/src/torque/csa-generator.h
@@ -0,0 +1,53 @@
+// Copyright 2018 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_TORQUE_CSA_GENERATOR_H_
+#define V8_TORQUE_CSA_GENERATOR_H_
+
+#include <iostream>
+
+#include "src/torque/cfg.h"
+#include "src/torque/declarable.h"
+
+namespace v8 {
+namespace internal {
+namespace torque {
+
+class CSAGenerator {
+ public:
+  CSAGenerator(const ControlFlowGraph& cfg, std::ostream& out,
+               base::Optional<Builtin::Kind> linkage = base::nullopt)
+      : cfg_(cfg), out_(out), linkage_(linkage) {}
+  base::Optional<Stack<std::string>> EmitGraph(Stack<std::string> parameters);
+
+  static constexpr const char* ARGUMENTS_VARIABLE_STRING = "arguments";
+
+  static void EmitCSAValue(VisitResult result, const Stack<std::string>& values,
+                           std::ostream& out);
+
+ private:
+  const ControlFlowGraph& cfg_;
+  std::ostream& out_;
+  size_t fresh_id_ = 0;
+  base::Optional<Builtin::Kind> linkage_;
+
+  std::string FreshNodeName() { return "tmp" + std::to_string(fresh_id_++); }
+  std::string BlockName(const Block* block) {
+    return "block" + std::to_string(block->id());
+  }
+
+  Stack<std::string> EmitBlock(const Block* block);
+  void EmitInstruction(const Instruction& instruction,
+                       Stack<std::string>* stack);
+#define EMIT_INSTRUCTION_DECLARATION(T) \
+  void EmitInstruction(const T& instruction, Stack<std::string>* stack);
+  TORQUE_INSTRUCTION_LIST(EMIT_INSTRUCTION_DECLARATION)
+#undef EMIT_INSTRUCTION_DECLARATION
+};
+
+}  // namespace torque
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_TORQUE_CSA_GENERATOR_H_