package org.graalvm.compiler.core.test;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import jdk.vm.ci.meta.ResolvedJavaMethod;
import org.junit.Test;
import org.graalvm.compiler.nodes.EncodedGraph;
import org.graalvm.compiler.nodes.GraphEncoder;
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.tiers.PhaseContext;
public class GraphEncoderTest extends GraalCompilerTest {
@Test
public void test01() {
testStringMethods(false);
}
@Test
public void test02() {
testStringMethods(true);
}
public void testStringMethods(boolean canonicalize) {
List<StructuredGraph> originalGraphs = new ArrayList<>();
for (Method method : String.class.getDeclaredMethods()) {
ResolvedJavaMethod javaMethod = getMetaAccess().lookupJavaMethod(method);
if (javaMethod.hasBytecodes()) {
StructuredGraph originalGraph = parseEager(javaMethod, AllowAssumptions.YES);
if (canonicalize) {
PhaseContext context = new PhaseContext(getProviders());
new CanonicalizerPhase().apply(originalGraph, context);
}
originalGraphs.add(originalGraph);
}
}
GraphEncoder encoder = new GraphEncoder(getTarget().arch);
for (StructuredGraph originalGraph : originalGraphs) {
encoder.prepare(originalGraph);
}
encoder.finishPrepare();
Map<StructuredGraph, Integer> startOffsets = new HashMap<>();
for (StructuredGraph originalGraph : originalGraphs) {
startOffsets.put(originalGraph, encoder.encode(originalGraph));
}
for (StructuredGraph originalGraph : originalGraphs) {
EncodedGraph encodedGraph = new EncodedGraph(encoder.getEncoding(), startOffsets.get(originalGraph), encoder.getObjects(), encoder.getNodeClasses(), originalGraph);
GraphEncoder.verifyEncoding(originalGraph, encodedGraph, getTarget().arch);
}
}
}