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WasmLLIntTierUpCounter.h
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92 lines (76 loc) · 3.06 KB
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/*
* 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 "ExecutionCounter.h"
#include "InstructionStream.h"
#include "Options.h"
#include "VirtualRegister.h"
#include <wtf/HashMap.h>
namespace JSC { namespace Wasm {
class LLIntTierUpCounter : public BaselineExecutionCounter {
WTF_MAKE_NONCOPYABLE(LLIntTierUpCounter);
public:
enum class CompilationStatus : uint8_t {
NotCompiled,
Compiling,
Compiled,
};
struct OSREntryData {
uint32_t loopIndex;
Vector<VirtualRegister> values;
};
LLIntTierUpCounter(HashMap<WasmInstructionStream::Offset, OSREntryData>&& osrEntryData)
: m_osrEntryData(WTFMove(osrEntryData))
{
optimizeAfterWarmUp();
}
void optimizeAfterWarmUp()
{
if (Options::wasmLLIntTiersUpToBBQ())
setNewThreshold(Options::thresholdForBBQOptimizeAfterWarmUp());
else
setNewThreshold(Options::thresholdForOMGOptimizeAfterWarmUp());
}
bool checkIfOptimizationThresholdReached()
{
return checkIfThresholdCrossedAndSet(nullptr);
}
void optimizeSoon()
{
if (Options::wasmLLIntTiersUpToBBQ())
setNewThreshold(Options::thresholdForBBQOptimizeSoon());
else
setNewThreshold(Options::thresholdForOMGOptimizeSoon());
}
void addOSREntryDataForLoop(WasmInstructionStream::Offset, OSREntryData&&);
const OSREntryData& osrEntryDataForLoop(WasmInstructionStream::Offset) const;
Lock m_lock;
CompilationStatus m_compilationStatus { CompilationStatus::NotCompiled };
CompilationStatus m_loopCompilationStatus { CompilationStatus::NotCompiled };
HashMap<WasmInstructionStream::Offset, OSREntryData> m_osrEntryData;
};
} } // namespace JSC::Wasm
#endif // ENABLE(WEBASSEMBLY)