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FTLJITFinalizer.cpp
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102 lines (79 loc) · 3.3 KB
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/*
* Copyright (C) 2013-2020 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.
*/
#include "config.h"
#include "FTLJITFinalizer.h"
#if ENABLE(FTL_JIT)
#include "CodeBlockWithJITType.h"
#include "DFGPlan.h"
#include "FTLState.h"
#include "ProfilerDatabase.h"
namespace JSC { namespace FTL {
JITFinalizer::JITFinalizer(DFG::Plan& plan)
: Finalizer(plan)
{
}
JITFinalizer::~JITFinalizer()
{
}
size_t JITFinalizer::codeSize()
{
size_t result = 0;
if (b3CodeLinkBuffer)
result += b3CodeLinkBuffer->size();
if (entrypointLinkBuffer)
result += entrypointLinkBuffer->size();
return result;
}
bool JITFinalizer::finalize()
{
return finalizeCommon();
}
bool JITFinalizer::finalizeFunction()
{
return finalizeCommon();
}
bool JITFinalizer::finalizeCommon()
{
CodeBlock* codeBlock = m_plan.codeBlock();
bool dumpDisassembly = shouldDumpDisassembly() || Options::asyncDisassembly();
MacroAssemblerCodeRef<JSEntryPtrTag> b3CodeRef =
FINALIZE_CODE_IF(dumpDisassembly, *b3CodeLinkBuffer, JSEntryPtrTag,
"FTL B3 code for %s", toCString(CodeBlockWithJITType(codeBlock, JITType::FTLJIT)).data());
MacroAssemblerCodeRef<JSEntryPtrTag> arityCheckCodeRef = entrypointLinkBuffer
? FINALIZE_CODE_IF(dumpDisassembly, *entrypointLinkBuffer, JSEntryPtrTag,
"FTL entrypoint thunk for %s with B3 generated code at %p", toCString(CodeBlockWithJITType(codeBlock, JITType::FTLJIT)).data(), function)
: MacroAssemblerCodeRef<JSEntryPtrTag>::createSelfManagedCodeRef(b3CodeRef.code());
jitCode->initializeB3Code(b3CodeRef);
jitCode->initializeArityCheckEntrypoint(arityCheckCodeRef);
codeBlock->setJITCode(*jitCode);
if (UNLIKELY(m_plan.compilation()))
m_plan.vm()->m_perBytecodeProfiler->addCompilation(codeBlock, *m_plan.compilation());
// The codeBlock is now responsible for keeping many things alive (e.g. frozen values)
// that were previously kept alive by the plan.
m_plan.vm()->heap.writeBarrier(codeBlock);
return true;
}
} } // namespace JSC::FTL
#endif // ENABLE(FTL_JIT)