mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
/*
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* Copyright (C) 2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(WEBASSEMBLY)
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#include "ExecutionCounter.h"
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#include "InstructionStream.h"
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#include "Options.h"
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#include <wtf/HashMap.h>
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namespace JSC { namespace Wasm {
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class LLIntTierUpCounter : public BaselineExecutionCounter {
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WTF_MAKE_NONCOPYABLE(LLIntTierUpCounter);
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public:
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enum class CompilationStatus : uint8_t {
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NotCompiled,
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Compiling,
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Compiled,
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};
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LLIntTierUpCounter()
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{
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optimizeAfterWarmUp();
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}
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void optimizeAfterWarmUp()
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{
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if (Options::wasmLLIntTiersUpToBBQ())
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setNewThreshold(Options::thresholdForBBQOptimizeAfterWarmUp(), nullptr);
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else
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setNewThreshold(Options::thresholdForOMGOptimizeAfterWarmUp(), nullptr);
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}
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bool checkIfOptimizationThresholdReached()
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{
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return checkIfThresholdCrossedAndSet(nullptr);
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}
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void optimizeSoon()
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{
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if (Options::wasmLLIntTiersUpToBBQ())
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setNewThreshold(Options::thresholdForBBQOptimizeSoon(), nullptr);
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else
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setNewThreshold(Options::thresholdForOMGOptimizeSoon(), nullptr);
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}
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struct OSREntryData {
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uint32_t loopIndex;
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Vector<VirtualRegister> values;
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};
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void addOSREntryDataForLoop(InstructionStream::Offset, OSREntryData&&);
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const OSREntryData& osrEntryDataForLoop(InstructionStream::Offset) const;
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Lock m_lock;
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CompilationStatus m_compilationStatus { CompilationStatus::NotCompiled };
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CompilationStatus m_loopCompilationStatus { CompilationStatus::NotCompiled };
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HashMap<InstructionStream::Offset, OSREntryData> m_osrEntryData;
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};
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} } // namespace JSC::Wasm
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#endif // ENABLE(WEBASSEMBLY)
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