/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 */

#include "ascend/include/DynamicCVPipeline/SplitDataflowPass.h"
#include "ascend/include/DynamicCVPipeline/SplitDataflow/AddBlockIdForControlOps.h"
#include "ascend/include/DynamicCVPipeline/SplitDataflow/DataDependencyAnalysis.h"
#include "ascend/include/DynamicCVPipeline/SplitDataflow/InterCoreTransferAndSync.h"
#include "ascend/include/DynamicCVPipeline/SplitDataflow/MarkMainLoop.h"
#include "ascend/include/DynamicCVPipeline/SplitDataflow/PreserveControlAttrsCanonicalize.h"
#include "ascend/include/DynamicCVPipeline/SplitDataflow/SeparateCVScope.h"
#include "mlir/Pass/PassManager.h"
#include "llvm/Support/Debug.h"

static constexpr const char *DEBUG_TYPE = "SplitDataflow";
#define DBGS() (llvm::dbgs() << '[' << DEBUG_TYPE << "] ")
#define LDBG(X) LLVM_DEBUG(DBGS() << (X) << "\n")

using namespace mlir;
using namespace triton;

// Run the pass
void SplitDataflowPass::runOnOperation()
{
    ModuleOp module = getOperation();
    OpPassManager pm(module.getOperationName());
    LDBG("Enter pass.");

    // Step 1: Add block_id for control flow operations
    pm.addPass(createAddBlockIdForControlOpsPass());

    // Step 2: Analyze data dependencies between Vector and Cube blocks
    pm.addPass(createDataDependencyAnalysisPass());

    // Step 3: Run InterCoreTransferAndSync
    pm.addPass(createInterCoreTransferAndSyncPass());

    // Step 4: Mark the main computation loop
    pm.addPass(createMarkMainLoopPass());

    // Step 5: Run SeparateCVScope
    pm.addPass(createSeparateCVScopePass());

    // Step 6: Canonicalize to preserve control flow attributes
    pm.addPass(createPreserveControlAttrsCanonicalizePass());

    if (failed(runPipeline(pm, module))) {
        module->emitError() << "[" << DEBUG_TYPE << "] Pass failed!";
        signalPassFailure();
    }

    LDBG("Process successfully");
}

namespace mlir {
namespace triton {

std::unique_ptr<OperationPass<ModuleOp>> createSplitDataflowPass()
{
    return std::make_unique<SplitDataflowPass>();
}
} // namespace triton
} // namespace mlir