From 495c675771f43cfa12ab7a426a538be72fec1805 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Sun, 9 Aug 2026 17:03:19 +0800
Subject: [CodeGen] Implement machine optimization and scheduling

---
 backend/lib/CodeGen/MachineSchedulerInternal.h | 32 ++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 backend/lib/CodeGen/MachineSchedulerInternal.h

(limited to 'backend/lib/CodeGen/MachineSchedulerInternal.h')

diff --git a/backend/lib/CodeGen/MachineSchedulerInternal.h b/backend/lib/CodeGen/MachineSchedulerInternal.h
new file mode 100644
index 0000000..a612548
--- /dev/null
+++ b/backend/lib/CodeGen/MachineSchedulerInternal.h
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_LIB_CODEGEN_MACHINESCHEDULERINTERNAL_H
+#define RCC_LIB_CODEGEN_MACHINESCHEDULERINTERNAL_H
+
+#include "rcc/CodeGen/MachineAnalyses.h"
+#include "rcc/CodeGen/MachineLiveness.h"
+#include "rcc/CodeGen/MachineScheduler.h"
+#include "rcc/CodeGen/ScheduleDAG.h"
+#include "rcc/Support/Error.h"
+
+#include <vector>
+
+namespace rcc {
+
+class MachineBasicBlock;
+class MachineFunction;
+class TargetDescription;
+class TargetSchedulingModel;
+struct MachineSchedulingRunResult final {
+  bool Changed = false;
+  std::vector<MachineBasicBlock *> ChangedBlocks;
+};
+
+[[nodiscard]] Expected<MachineSchedulingRunResult> runMachineScheduler(
+    MachineFunction &Function, const TargetDescription &Target, const TargetSchedulingModel &Model,
+    ScheduleDAGMode Mode, const LiveVariablesAnalysis::Result &Liveness,
+    const MachineBlockFrequencyAnalysis::Result &Frequencies, MachineSchedulerOptions Options);
+
+} // namespace rcc
+
+#endif // RCC_LIB_CODEGEN_MACHINESCHEDULERINTERNAL_H
-- 
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