hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/InvokeHintsTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package org.graalvm.compiler.core.test;

import java.util.HashMap;
import java.util.Map;

import org.junit.Test;

import org.graalvm.compiler.nodes.Invoke;
import org.graalvm.compiler.nodes.StructuredGraph;
import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
import org.graalvm.compiler.phases.common.CanonicalizerPhase;
import org.graalvm.compiler.phases.common.DeadCodeEliminationPhase;
import org.graalvm.compiler.phases.common.inlining.InliningPhase;
import org.graalvm.compiler.phases.tiers.HighTierContext;

public class InvokeHintsTest extends GraalCompilerTest {

    private static final String REFERENCE_SNIPPET = "referenceSnippet";

    public static int const1() {
        return 1;
    }

    public static int const7() {
        return 7;
    }

    @SuppressWarnings("all")
    public static int referenceSnippet() {
        return 7;
    }

    @Test
    public void test1() {
        test("test1Snippet");
    }

    @SuppressWarnings("all")
    public static int test1Snippet() {
        return const7();
    }

    @Test
    public void test2() {
        test("test2Snippet");
    }

    @SuppressWarnings("all")
    public static int test2Snippet() {
        return const1() + const1() + const1() + const1() + const1() + const1() + const1();
    }

    private void test(String snippet) {
        StructuredGraph graph = parseEager(snippet, AllowAssumptions.NO);
        Map<Invoke, Double> hints = new HashMap<>();
        for (Invoke invoke : graph.getInvokes()) {
            hints.put(invoke, 1000d);
        }

        HighTierContext context = getDefaultHighTierContext();
        new InliningPhase(hints, new CanonicalizerPhase()).apply(graph, context);
        new CanonicalizerPhase().apply(graph, context);
        new DeadCodeEliminationPhase().apply(graph);
        StructuredGraph referenceGraph = parseEager(REFERENCE_SNIPPET, AllowAssumptions.NO);
        assertEquals(referenceGraph, graph);
    }
}