mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 12:19:46 +00:00
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/*
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* Copyright (C) 2012, 2013, 2016 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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#include "config.h"
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#include "MethodOfGettingAValueProfile.h"
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#if ENABLE(DFG_JIT)
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#include "ArithProfile.h"
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#include "CCallHelpers.h"
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#include "CodeBlock.h"
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#include "JSCInlines.h"
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namespace JSC {
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MethodOfGettingAValueProfile MethodOfGettingAValueProfile::fromLazyOperand(
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CodeBlock* codeBlock, const LazyOperandValueProfileKey& key)
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{
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MethodOfGettingAValueProfile result;
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result.m_kind = LazyOperand;
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result.u.lazyOperand.codeBlock = codeBlock;
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result.u.lazyOperand.bytecodeOffset = key.bytecodeOffset();
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result.u.lazyOperand.operand = key.operand().offset();
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return result;
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}
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void MethodOfGettingAValueProfile::emitReportValue(CCallHelpers& jit, JSValueRegs regs) const
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{
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switch (m_kind) {
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case None:
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return;
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case Ready:
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jit.storeValue(regs, u.profile->specFailBucket(0));
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return;
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case LazyOperand: {
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LazyOperandValueProfileKey key(u.lazyOperand.bytecodeOffset, VirtualRegister(u.lazyOperand.operand));
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ConcurrentJSLocker locker(u.lazyOperand.codeBlock->m_lock);
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LazyOperandValueProfile* profile =
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u.lazyOperand.codeBlock->lazyOperandValueProfiles().add(locker, key);
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jit.storeValue(regs, profile->specFailBucket(0));
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return;
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}
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case ArithProfileReady: {
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u.arithProfile->emitObserveResult(jit, regs, DoNotHaveTagRegisters);
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return;
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} }
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RELEASE_ASSERT_NOT_REACHED();
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}
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} // namespace JSC
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#endif // ENABLE(DFG_JIT)
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