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[GR-58622] Compact binary encoding for ObjectCopier. #9959

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[GR-58622] Compact binary encoding for ObjectCopier. #9959

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ebc86cf
Disable strengthened graphs for now.
peter-hofer Oct 3, 2024
ab6a45d
Binary ObjectCopier encoding.
peter-hofer Oct 1, 2024
9687489
Binary ObjectCopier array encoding.
peter-hofer Oct 2, 2024
dae7277
Use FrequencyEncoder in ObjectCopier.
peter-hofer Oct 3, 2024
815a469
Use a string table for compact indexes (using a frequency encoder) an…
peter-hofer Oct 3, 2024
38ca85e
Compact binary map encoding in ObjectCopier.
peter-hofer Oct 4, 2024
cf1f54a
Encode ObjectCopier objects and fields in compact binary format.
peter-hofer Oct 4, 2024
dad70fd
Omit implicit incrementing ids in ObjectCopier.
peter-hofer Oct 4, 2024
4ab6228
Use packing for most integer values.
peter-hofer Oct 4, 2024
5c55805
Omit field counts, names and types.
peter-hofer Oct 7, 2024
693732b
Different extension for graphs file.
peter-hofer Oct 15, 2024
91384f5
Add human-readable debug output for maintainability.
peter-hofer Oct 16, 2024
1e0bcc3
Add fingerprints for ObjectCopier types and enum constants for safety.
peter-hofer Oct 17, 2024
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22 changes: 13 additions & 9 deletions compiler/src/jdk.graal.compiler.test/src/jdk/graal/compiler/util/test/ObjectCopierTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
package jdk.graal.compiler.util.test;

import java.io.IOException;
import java.io.PrintStream;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
Expand Down Expand Up @@ -175,20 +176,14 @@ public void testIt() {
List<Field> externalValueFields = List.of(ObjectCopier.getField(BaseClass.class, "BASE_SINGLETON"),
ObjectCopier.getField(TestObject.class, "TEST_OBJECT_SINGLETON"));

String encoded = ObjectCopier.encode(new ObjectCopier.Encoder(externalValueFields), root);
if (DEBUG) {
System.out.printf("encoded:%n%s%n", encoded);
}
byte[] encoded = encode(externalValueFields, root, "encoded");
Object decoded = ObjectCopier.decode(encoded, loader);
if (DEBUG) {
System.out.printf("root:%n%s%n", root);
System.out.printf("decoded:%n%s%n", decoded);
}
String reencoded = ObjectCopier.encode(new ObjectCopier.Encoder(externalValueFields), decoded);
if (DEBUG) {
System.out.printf("reencoded:%n%s%n", reencoded);
}
Assert.assertEquals(encoded, reencoded);
byte[] reencoded = encode(externalValueFields, decoded, "reencoded");
Assert.assertArrayEquals(encoded, reencoded);

Map<String, Object> root2 = (Map<String, Object>) ObjectCopier.decode(reencoded, loader);

Expand All @@ -201,6 +196,15 @@ public void testIt() {
Assert.assertSame(root2.get("singleton2"), root2.get("singleton2_2"));
}

private static byte[] encode(List<Field> externalValueFields, Object root, String debugLabel) {
PrintStream debugStream = null;
if (DEBUG) {
debugStream = System.out;
debugStream.printf("%s:%n", debugLabel);
}
return ObjectCopier.encode(new ObjectCopier.Encoder(externalValueFields, debugStream), root);
}

@Test
public void test() throws IOException, InterruptedException {
launchSubprocess(this::testIt,
Expand Down
6 changes: 3 additions & 3 deletions compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/hotspot/libgraal/BuildTime.java
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Original file line number Diff line number Diff line change
Expand Up @@ -39,14 +39,14 @@
import java.util.function.Consumer;
import java.util.function.Supplier;

import jdk.graal.compiler.core.ArchitectureSpecific;
import jdk.graal.compiler.hotspot.CompilerConfigurationFactory;
import org.graalvm.collections.EconomicMap;

import jdk.graal.compiler.core.ArchitectureSpecific;
import jdk.graal.compiler.core.common.spi.ForeignCallSignature;
import jdk.graal.compiler.debug.GraalError;
import jdk.graal.compiler.debug.TTY;
import jdk.graal.compiler.graph.NodeClass;
import jdk.graal.compiler.hotspot.CompilerConfigurationFactory;
import jdk.graal.compiler.hotspot.EncodedSnippets;
import jdk.graal.compiler.hotspot.HotSpotForeignCallLinkage;
import jdk.graal.compiler.hotspot.HotSpotReplacementsImpl;
Expand Down Expand Up @@ -148,7 +148,7 @@ public static void configureGraalForLibGraal(String arch,
Consumer<Class<?>> registerAsInHeap,
Consumer<List<Class<?>>> hostedGraalSetFoldNodePluginClasses,
String nativeImageLocationQualifier,
String encodedGuestObjects) {
byte[] encodedGuestObjects) {
GraalError.guarantee(VALID_LOADER_NAME.equals(LOADER.getName()),
"Only call this method from classloader " + VALID_LOADER_NAME);

Expand Down
4 changes: 2 additions & 2 deletions compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/hotspot/libgraal/CompilerConfig.java
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Original file line number Diff line number Diff line change
Expand Up @@ -93,9 +93,9 @@ protected ClassInfo makeClassInfo(Class<?> declaringClass) {
return ci;
}
};
String encoded = ObjectCopier.encode(encoder, encodedObjects);
byte[] encoded = ObjectCopier.encode(encoder, encodedObjects);

Files.writeString(Path.of(args[0]), encoded);
Files.write(Path.of(args[0]), encoded);
}

private static EncodedSnippets getEncodedSnippets(HotSpotReplacementsImpl replacements, OptionValues options) {
Expand Down
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