Source/JavaScriptCore/wasm/WasmLLIntPlan.h

/*
 * Copyright (C) 2019 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#if ENABLE(WEBASSEMBLY)

#include "WasmEntryPlan.h"
#include "WasmFunctionCodeBlock.h"

namespace JSC {

class CallLinkInfo;

namespace Wasm {

class LLIntCallee;

class LLIntPlan final : public EntryPlan {
public:
    using Base = EntryPlan;

    using Base::Base;

    void initializeCallees(const CalleeInitializer&) override;

    MacroAssemblerCodeRef<B3CompilationPtrTag>&& takeEntryThunks()
    {
        RELEASE_ASSERT(!failed() && !hasWork());
        return WTFMove(m_entryThunks);
    }

protected:
    bool prepareImpl() override;
    void compileFunction(uint32_t functionIndex) override;
    void didCompleteCompilation(const AbstractLocker&) override;

private:
    struct EmbederToWasmFunction {
        std::unique_ptr<CCallHelpers> jit;
        std::unique_ptr<InternalFunction> function;
    };

    Vector<std::unique_ptr<FunctionCodeBlock>> m_wasmInternalFunctions;
    Vector<Ref<LLIntCallee>> m_callees;
    HashMap<uint32_t, EmbederToWasmFunction, typename DefaultHash<uint32_t>::Hash, WTF::UnsignedWithZeroKeyHashTraits<uint32_t>> m_embedderToWasmInternalFunctions;
    MacroAssemblerCodeRef<B3CompilationPtrTag> m_entryThunks;
};


} } // namespace JSC::Wasm

#endif // ENABLE(WEBASSEMBLY)