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/*
* Copyright (C) 2012-2024 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 "DFGSlowPathGenerator.h"
#include "DFGSpeculativeJIT.h"
#include <wtf/Vector.h>
namespace JSC { namespace DFG {
class CallArrayAllocatorSlowPathGenerator final : public JumpingSlowPathGenerator<MacroAssembler::JumpList> {
WTF_MAKE_TZONE_ALLOCATED(CallArrayAllocatorSlowPathGenerator);
public:
CallArrayAllocatorSlowPathGenerator(
MacroAssembler::JumpList from, SpeculativeJIT* jit, P_JITOperation_VmStZB function,
GPRReg resultGPR, GPRReg storageGPR, RegisteredStructure structure, size_t size)
: JumpingSlowPathGenerator<MacroAssembler::JumpList>(from, jit)
, m_function(function)
, m_resultGPR(resultGPR)
, m_storageGPR(storageGPR)
, m_size(size)
, m_structure(structure)
{
ASSERT(size < static_cast<size_t>(std::numeric_limits<int32_t>::max()));
jit->silentSpillAllRegistersImpl(false, m_plans, resultGPR);
}
private:
void generateInternal(SpeculativeJIT* jit) final
{
linkFrom(jit);
jit->callOperationWithSilentSpill(m_plans.span(), m_function, m_resultGPR, SpeculativeJIT::TrustedImmPtr(&jit->vm()), m_structure, m_size, m_storageGPR);
jit->loadPtr(MacroAssembler::Address(m_resultGPR, JSObject::butterflyOffset()), m_storageGPR);
jumpTo(jit);
}
P_JITOperation_VmStZB m_function;
GPRReg m_resultGPR;
GPRReg m_storageGPR;
int m_size;
RegisteredStructure m_structure;
Vector<SilentRegisterSavePlan, 2> m_plans;
};
class CallArrayAllocatorWithVariableSizeSlowPathGenerator final : public JumpingSlowPathGenerator<MacroAssembler::JumpList> {
WTF_MAKE_TZONE_ALLOCATED(CallArrayAllocatorWithVariableSizeSlowPathGenerator);
public:
CallArrayAllocatorWithVariableSizeSlowPathGenerator(
MacroAssembler::JumpList from, SpeculativeJIT* jit, P_JITOperation_GStZB function,
GPRReg resultGPR, JITCompiler::LinkableConstant globalObject, RegisteredStructure contiguousStructure, RegisteredStructure arrayStorageStructure, GPRReg sizeGPR, GPRReg storageGPR)
: JumpingSlowPathGenerator<MacroAssembler::JumpList>(from, jit)
, m_function(function)
, m_contiguousStructure(contiguousStructure)
, m_arrayStorageOrContiguousStructure(arrayStorageStructure)
, m_resultGPR(resultGPR)
, m_globalObject(globalObject)
, m_sizeGPR(sizeGPR)
, m_storageGPR(storageGPR)
{
jit->silentSpillAllRegistersImpl(false, m_plans, resultGPR);
}
private:
void generateInternal(SpeculativeJIT* jit) final
{
linkFrom(jit);
jit->silentSpill(m_plans);
GPRReg scratchGPR = AssemblyHelpers::selectScratchGPR(m_sizeGPR, m_storageGPR);
if (m_contiguousStructure.get() != m_arrayStorageOrContiguousStructure.get()) {
MacroAssembler::Jump bigLength = jit->branch32(MacroAssembler::AboveOrEqual, m_sizeGPR, MacroAssembler::TrustedImm32(MIN_ARRAY_STORAGE_CONSTRUCTION_LENGTH));
jit->move(SpeculativeJIT::TrustedImmPtr(m_contiguousStructure), scratchGPR);
MacroAssembler::Jump done = jit->jump();
bigLength.link(jit);
jit->move(SpeculativeJIT::TrustedImmPtr(m_arrayStorageOrContiguousStructure), scratchGPR);
done.link(jit);
} else
jit->move(SpeculativeJIT::TrustedImmPtr(m_contiguousStructure), scratchGPR);
jit->setupArguments<decltype(m_function)>(m_globalObject, scratchGPR, m_sizeGPR, m_storageGPR);
jit->appendCall(m_function);
std::optional<GPRReg> exception = jit->tryHandleOrGetExceptionUnderSilentSpill<decltype(m_function)>(m_plans, m_resultGPR);
jit->setupResults(m_resultGPR);
jit->silentFill(m_plans);
if (exception)
jit->exceptionCheck(*exception);
jumpTo(jit);
}
P_JITOperation_GStZB m_function;
RegisteredStructure m_contiguousStructure;
RegisteredStructure m_arrayStorageOrContiguousStructure;
GPRReg m_resultGPR;
JITCompiler::LinkableConstant m_globalObject;
GPRReg m_sizeGPR;
GPRReg m_storageGPR;
Vector<SilentRegisterSavePlan, 2> m_plans;
};
class CallArrayAllocatorWithVariableStructureVariableSizeSlowPathGenerator final : public JumpingSlowPathGenerator<MacroAssembler::JumpList> {
WTF_MAKE_TZONE_ALLOCATED(CallArrayAllocatorWithVariableStructureVariableSizeSlowPathGenerator);
public:
CallArrayAllocatorWithVariableStructureVariableSizeSlowPathGenerator(
MacroAssembler::JumpList from, SpeculativeJIT* jit, P_JITOperation_GStZB function,
GPRReg resultGPR, JITCompiler::LinkableConstant globalObject, GPRReg structureGPR, GPRReg sizeGPR, GPRReg storageGPR)
: JumpingSlowPathGenerator<MacroAssembler::JumpList>(from, jit)
, m_function(function)
, m_resultGPR(resultGPR)
, m_globalObject(globalObject)
, m_structureGPR(structureGPR)
, m_sizeGPR(sizeGPR)
, m_storageGPR(storageGPR)
{
jit->silentSpillAllRegistersImpl(false, m_plans, resultGPR);
}
private:
void generateInternal(SpeculativeJIT* jit) final
{
linkFrom(jit);
jit->callOperationWithSilentSpill(m_plans, m_function, m_resultGPR, m_globalObject, m_structureGPR, m_sizeGPR, m_storageGPR);
jumpTo(jit);
}
P_JITOperation_GStZB m_function;
GPRReg m_resultGPR;
JITCompiler::LinkableConstant m_globalObject;
GPRReg m_structureGPR;
GPRReg m_sizeGPR;
GPRReg m_storageGPR;
Vector<SilentRegisterSavePlan, 2> m_plans;
};
} } // namespace JSC::DFG
#endif // ENABLE(DFG_JIT)
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