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ARM64OutOfLineCodeSection.cpp
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ARM64OutOfLineCodeSection.cpp
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/*******************************************************************************
* Copyright (c) 2018, 2019 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at http://eclipse.org/legal/epl-2.0
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#include "codegen/ARM64OutOfLineCodeSection.hpp"
#include "codegen/CodeGenerator.hpp"
#include "codegen/GenerateInstructions.hpp"
TR_ARM64OutOfLineCodeSection::TR_ARM64OutOfLineCodeSection(TR::Node *callNode,
TR::ILOpCodes callOp,
TR::Register *targetReg,
TR::LabelSymbol *entryLabel,
TR::LabelSymbol *restartLabel,
TR::CodeGenerator *cg) :
TR_OutOfLineCodeSection(callNode, callOp, targetReg, entryLabel, restartLabel, cg)
{
generateARM64OutOfLineCodeSectionDispatch();
}
void TR_ARM64OutOfLineCodeSection::assignRegisters(TR_RegisterKinds kindsToBeAssigned)
{
TR_UNIMPLEMENTED();
}
void TR_ARM64OutOfLineCodeSection::generateARM64OutOfLineCodeSectionDispatch()
{
// Switch to cold helper instruction stream.
//
swapInstructionListsWithCompilation();
generateLabelInstruction(_cg, TR::InstOpCode::label, _callNode, _entryLabel);
TR::Register *resultReg = TR::TreeEvaluator::performCall(_callNode, _callNode->getOpCode().isCallIndirect(), _cg);
if (_targetReg)
{
TR_ASSERT(resultReg, "resultReg must not be a NULL");
generateMovInstruction(_cg, _callNode, _targetReg, resultReg);
}
_cg->decReferenceCount(_callNode);
if (_restartLabel)
generateLabelInstruction(_cg, TR::InstOpCode::b, _callNode, _restartLabel);
// Switch from cold helper instruction stream.
//
swapInstructionListsWithCompilation();
}