shader: Initial implementation of an AST

src/shader_recompiler/frontend/ir/structured_control_flow.h

@@ -0,0 +1,22 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <span>
+
+#include <boost/intrusive/list.hpp>
+
+#include "shader_recompiler/frontend/ir/basic_block.h"
+#include "shader_recompiler/frontend/ir/microinstruction.h"
+#include "shader_recompiler/object_pool.h"
+
+namespace Shader::IR {
+
+[[nodiscard]] BlockList VisitAST(ObjectPool<Inst>& inst_pool, ObjectPool<Block>& block_pool,
+                                 std::span<Block* const> unordered_blocks,
+                                 const std::function<void(Block*)>& func);
+
+} // namespace Shader::IR