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/*
* Copyright (C) 2015-2024 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(DFG_JIT)
#include "DFGOperations.h"
#include "DFGSlowPathGenerator.h"
#include "DFGSpeculativeJIT.h"
#include "DirectArguments.h"
namespace JSC { namespace DFG {
// This calls operationCreateDirectArguments but then restores the value of lengthGPR.
class CallCreateDirectArgumentsSlowPathGenerator final : public JumpingSlowPathGenerator<MacroAssembler::JumpList> {
WTF_MAKE_TZONE_ALLOCATED(CallCreateDirectArgumentsSlowPathGenerator);
public:
CallCreateDirectArgumentsSlowPathGenerator(
MacroAssembler::JumpList from, SpeculativeJIT* jit, GPRReg resultGPR, RegisteredStructure structure,
GPRReg lengthGPR, unsigned minCapacity)
: JumpingSlowPathGenerator<MacroAssembler::JumpList>(from, jit)
, m_resultGPR(resultGPR)
, m_structure(structure)
, m_lengthGPR(lengthGPR)
, m_minCapacity(minCapacity)
{
jit->silentSpillAllRegistersImpl(false, m_plans, resultGPR);
}
private:
void generateInternal(SpeculativeJIT* jit) final
{
linkFrom(jit);
jit->callOperationWithSilentSpill(m_plans.span(), operationCreateDirectArguments, m_resultGPR, SpeculativeJIT::TrustedImmPtr(&jit->vm()), m_structure, m_lengthGPR, m_minCapacity);
jit->loadPtr(
MacroAssembler::Address(m_resultGPR, DirectArguments::offsetOfLength()), m_lengthGPR);
jumpTo(jit);
}
GPRReg m_resultGPR;
RegisteredStructure m_structure;
GPRReg m_lengthGPR;
unsigned m_minCapacity;
Vector<SilentRegisterSavePlan, 2> m_plans;
};
} } // namespace JSC::DFG
#endif // ENABLE(DFG_JIT)
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