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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package org.graalvm.compiler.core.test;

import org.graalvm.compiler.core.common.cfg.AbstractBlockBase;
import org.graalvm.compiler.lir.LIR;
import org.graalvm.compiler.lir.LIRInstruction;
import org.graalvm.compiler.lir.gen.LIRGenerationResult;
import org.graalvm.compiler.lir.phases.LIRPhase;
import org.graalvm.compiler.lir.phases.LIRSuites;
import org.graalvm.compiler.lir.phases.PreAllocationOptimizationPhase.PreAllocationOptimizationContext;
import org.graalvm.compiler.options.OptionValues;

import jdk.vm.ci.code.TargetDescription;
import org.junit.Assert;

import java.util.function.Predicate;

public abstract class MatchRuleTest extends GraalCompilerTest {
    private LIR lir;

    protected LIR getLIR() {
        return lir;
    }

    @Override
    protected LIRSuites createLIRSuites(OptionValues options) {
        LIRSuites suites = super.createLIRSuites(options);
        suites.getPreAllocationOptimizationStage().appendPhase(new CheckPhase());
        return suites;
    }

    public class CheckPhase extends LIRPhase<PreAllocationOptimizationContext> {
        @Override
        protected void run(TargetDescription target, LIRGenerationResult lirGenRes, PreAllocationOptimizationContext context) {
            lir = lirGenRes.getLIR();
        }
    }

    protected void checkLIR(String methodName, Predicate<LIRInstruction> predicate, int expected) {
        checkLIR(methodName, predicate, 0, expected);
    }

    protected void checkLIR(String methodName, Predicate<LIRInstruction> predicate, int blockIndex, int expected) {
        compile(getResolvedJavaMethod(methodName), null);
        int actualOpNum = 0;
        for (LIRInstruction ins : lir.getLIRforBlock(lir.codeEmittingOrder()[blockIndex])) {
            if (predicate.test(ins)) {
                actualOpNum++;
            }
        }
        Assert.assertEquals(expected, actualOpNum);
    }

    protected void checkLIRforAll(String methodName, Predicate<LIRInstruction> predicate, int expected) {
        compile(getResolvedJavaMethod(methodName), null);
        int actualOpNum = 0;
        for (AbstractBlockBase<?> block : lir.codeEmittingOrder()) {
            if (block == null) {
                continue;
            }
            for (LIRInstruction ins : lir.getLIRforBlock(block)) {
                if (predicate.test(ins)) {
                    actualOpNum++;
                }
            }
        }
        Assert.assertEquals(expected, actualOpNum);
    }
}