From f89d528efc0228c049c2867dcba886a56bac8619 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Fri, 28 Aug 2026 18:51:10 +0800
Subject: [CodeGen] Add target machine registry

---
 backend/include/rcc/Target/TargetMachine.h | 69 ++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 backend/include/rcc/Target/TargetMachine.h

(limited to 'backend/include/rcc/Target/TargetMachine.h')

diff --git a/backend/include/rcc/Target/TargetMachine.h b/backend/include/rcc/Target/TargetMachine.h
new file mode 100644
index 0000000..e45b8ca
--- /dev/null
+++ b/backend/include/rcc/Target/TargetMachine.h
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_TARGET_TARGETMACHINE_H
+#define RCC_TARGET_TARGETMACHINE_H
+
+#include "rcc/CodeGen/MachineOutliner.h"
+#include "rcc/CodeGen/MachinePassManager.h"
+#include "rcc/CodeGen/TargetDescription.h"
+#include "rcc/Support/Error.h"
+#include "rcc/Target/TargetOptions.h"
+
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace rcc {
+
+class CompilationUnit;
+class MachineFunction;
+class Target;
+
+class TargetMachine {
+public:
+  TargetMachine(const TargetMachine &) = delete;
+  TargetMachine &operator=(const TargetMachine &) = delete;
+  TargetMachine(TargetMachine &&) = delete;
+  TargetMachine &operator=(TargetMachine &&) = delete;
+  virtual ~TargetMachine();
+
+  [[nodiscard]] const Target &target() const noexcept {
+    return RegisteredTarget;
+  }
+
+  [[nodiscard]] const TargetDescription &targetDescription() const noexcept {
+    return Description;
+  }
+
+  [[nodiscard]] const TargetMachineOptions &options() const noexcept {
+    return Options;
+  }
+
+  [[nodiscard]] virtual Expected<void>
+  addCodeGenPasses(MachineFunctionPassManager &Pipeline, const MachineFunction &Function,
+                   TargetPipelineOptions PipelineOptions) const = 0;
+  [[nodiscard]] virtual Expected<std::unique_ptr<MachineFunctionPass>>
+  createMachinePass(std::string_view Name, TargetPipelineOptions PipelineOptions) const = 0;
+  [[nodiscard]] virtual Expected<std::vector<std::string>>
+  codeGenPassNames(const MachineFunction &Function) const = 0;
+  [[nodiscard]] virtual Expected<std::unique_ptr<TargetMachineOutlinerInfo>>
+  createOutlinerInfo() const = 0;
+  [[nodiscard]] virtual Expected<std::string> emitAssembly(const CompilationUnit &Unit) const = 0;
+  [[nodiscard]] virtual Expected<std::vector<std::uint8_t>>
+  emitObject(const CompilationUnit &Unit) const = 0;
+
+protected:
+  TargetMachine(const Target &RegisteredTarget, TargetMachineOptions Options,
+                TargetDescription Description);
+
+private:
+  const Target &RegisteredTarget;
+  TargetMachineOptions Options;
+  TargetDescription Description;
+};
+
+} // namespace rcc
+
+#endif // RCC_TARGET_TARGETMACHINE_H
-- 
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