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Peephole.cpp
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Peephole.cpp
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/*******************************************************************************
* Copyright (c) 2020, 2020 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 "../CodeGenTest.hpp"
#include "Util.hpp"
#include "codegen/GenerateInstructions.hpp"
#include "codegen/Peephole.hpp"
class PeepholeTest : public TRTest::CodeGenTest {};
TEST_F(PeepholeTest, testRegressIssue5418FlatLoad) {
TR::RealRegister *gr1 = cg()->machine()->getRealRegister(TR::RealRegister::gr1);
TR::RealRegister *gr2 = cg()->machine()->getRealRegister(TR::RealRegister::gr2);
TR::Instruction *instr1 = generateMemSrc1Instruction(cg(), TR::InstOpCode::stw, fakeNode, TR::MemoryReference::createWithDisplacement(cg(), gr1, 0, 4), gr2);
TR::Instruction *instr2 = generateTrg1Src1ImmInstruction(cg(), TR::InstOpCode::lwz, fakeNode, gr2, gr1, 0);
TR::Peephole peephole(cg()->comp());
peephole.perform();
ASSERT_EQ(instr1, cg()->getFirstInstruction());
ASSERT_EQ(instr2, instr1->getNext());
ASSERT_FALSE(instr2->getNext());
}
TEST_F(PeepholeTest, testRegressIssue5418End) {
TR::RealRegister *gr1 = cg()->machine()->getRealRegister(TR::RealRegister::gr1);
TR::RealRegister *gr2 = cg()->machine()->getRealRegister(TR::RealRegister::gr2);
TR::Instruction *instr = generateMemSrc1Instruction(cg(), TR::InstOpCode::stw, fakeNode, TR::MemoryReference::createWithDisplacement(cg(), gr1, 0, 4), gr2);
TR::Peephole peephole(cg()->comp());
peephole.perform();
ASSERT_EQ(instr, cg()->getFirstInstruction());
ASSERT_FALSE(instr->getNext());
}