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/*
* Copyright (C) 2017-2023 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 "AirPrintSpecial.h"
#if ENABLE(B3_JIT)
#include "CCallHelpers.h"
#include "MacroAssemblerPrinter.h"
#include <wtf/TZoneMallocInlines.h>
namespace JSC { namespace B3 { namespace Air {
WTF_MAKE_TZONE_ALLOCATED_IMPL(PrintSpecial);
PrintSpecial::PrintSpecial(Printer::PrintRecordList* list)
: m_printRecordList(list)
{
}
PrintSpecial::~PrintSpecial()
{
}
void PrintSpecial::forEachArg(Inst&, const ScopedLambda<Inst::EachArgCallback>&)
{
}
bool PrintSpecial::isValid(Inst&)
{
return true;
}
bool PrintSpecial::admitsStack(Inst&, unsigned)
{
return false;
}
bool PrintSpecial::admitsExtendedOffsetAddr(Inst&, unsigned)
{
return false;
}
void PrintSpecial::reportUsedRegisters(Inst&, const RegisterSetBuilder&)
{
}
MacroAssembler::Jump PrintSpecial::generate(Inst& inst, CCallHelpers& jit, GenerationContext&)
{
size_t currentArg = 1; // Skip the PrintSpecial arg.
for (auto& term : *m_printRecordList) {
if (term.printer == Printer::printAirArg) {
const Arg& arg = inst.args[currentArg++];
switch (arg.kind()) {
case Arg::Tmp:
term = Printer::Printer<MacroAssembler::RegisterID>(arg.gpr());
break;
case Arg::Addr:
case Arg::ExtendedOffsetAddr:
term = Printer::Printer<MacroAssembler::Address>(arg.asAddress());
break;
default:
RELEASE_ASSERT_NOT_REACHED();
break;
}
}
}
jit.print(m_printRecordList);
return CCallHelpers::Jump();
}
RegisterSetBuilder PrintSpecial::extraEarlyClobberedRegs(Inst&)
{
return { };
}
RegisterSetBuilder PrintSpecial::extraClobberedRegs(Inst&)
{
return { };
}
void PrintSpecial::dumpImpl(PrintStream& out) const
{
out.print("Print");
}
void PrintSpecial::deepDumpImpl(PrintStream& out) const
{
out.print("print for debugging logging.");
}
} } // namespace B3::Air
namespace Printer {
NO_RETURN void printAirArg(PrintStream&, Context&)
{
// This function is only a placeholder to let PrintSpecial::generate() know that
// the Printer needs to be replaced with one for a register, constant, etc. Hence,
// this function should never be called.
RELEASE_ASSERT_NOT_REACHED();
}
} // namespace Printer
} // namespace JSC
#endif // ENABLE(B3_JIT)
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