--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/ConstantPoolSubstitutionsTests.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,303 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * 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).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package org.graalvm.compiler.hotspot.test;
+
+import static org.graalvm.compiler.test.JLModule.uncheckedAddExports;
+
+import java.lang.reflect.Method;
+
+import org.graalvm.compiler.core.test.GraalCompilerTest;
+import org.graalvm.compiler.debug.DebugContext;
+import org.graalvm.compiler.graph.Node;
+import org.graalvm.compiler.nodes.Invoke;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
+import org.graalvm.compiler.test.JLModule;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+
+public class ConstantPoolSubstitutionsTests extends GraalCompilerTest {
+
+ public ConstantPoolSubstitutionsTests() {
+ exportPackage(JAVA_BASE, "jdk.internal.org.objectweb.asm");
+ }
+
+ @SuppressWarnings("try")
+ protected StructuredGraph test(final String snippet) {
+ ResolvedJavaMethod method = getMetaAccess().lookupJavaMethod(getMethod(snippet));
+ DebugContext debug = getDebugContext();
+ try (DebugContext.Scope s = debug.scope("ConstantPoolSubstitutionsTests", method)) {
+ StructuredGraph graph = parseEager(snippet, AllowAssumptions.YES);
+ compile(graph.method(), graph);
+ assertNotInGraph(graph, Invoke.class);
+ debug.dump(DebugContext.BASIC_LEVEL, graph, snippet);
+ return graph;
+ } catch (Throwable e) {
+ throw debug.handle(e);
+ }
+ }
+
+ protected static StructuredGraph assertNotInGraph(StructuredGraph graph, Class<?> clazz) {
+ for (Node node : graph.getNodes()) {
+ if (clazz.isInstance(node)) {
+ fail(node.toString());
+ }
+ }
+ return graph;
+ }
+
+ private static Object getConstantPoolForObject() {
+ String miscPackage = Java8OrEarlier ? "sun.misc" : "jdk.internal.misc";
+ try {
+ Class<?> sharedSecretsClass = Class.forName(miscPackage + ".SharedSecrets");
+ Class<?> javaLangAccessClass = Class.forName(miscPackage + ".JavaLangAccess");
+ Object jla = sharedSecretsClass.getDeclaredMethod("getJavaLangAccess").invoke(null);
+ return javaLangAccessClass.getDeclaredMethod("getConstantPool", Class.class).invoke(jla, Object.class);
+ } catch (Exception e) {
+ throw new AssertionError(e);
+ }
+ }
+
+ /**
+ * Get the test methods from the generated class.
+ */
+ @Override
+ protected Method getMethod(String methodName) {
+ Class<?> cl;
+ try {
+ cl = LOADER.findClass(AsmLoader.NAME);
+ addExports(cl);
+ } catch (ClassNotFoundException e) {
+ throw new AssertionError(e);
+ }
+ return getMethod(cl, methodName);
+ }
+
+ @BeforeClass
+ public static void beforeClass() {
+ addExports(AsmLoader.class);
+ }
+
+ /**
+ * This test uses some API hidden by the JDK9 module system.
+ */
+ private static void addExports(Class<?> c) {
+ if (!Java8OrEarlier) {
+ Object javaBaseModule = JLModule.fromClass(String.class);
+ Object cModule = JLModule.fromClass(c);
+ uncheckedAddExports(javaBaseModule, "jdk.internal.reflect", cModule);
+ uncheckedAddExports(javaBaseModule, "jdk.internal.misc", cModule);
+ }
+ }
+
+ @Test
+ public void testGetSize() {
+ Object cp = getConstantPoolForObject();
+ test("getSize", cp);
+ }
+
+ @Test
+ public void testGetIntAt() {
+ test("getIntAt");
+ }
+
+ @Test
+ public void testGetLongAt() {
+ test("getLongAt");
+ }
+
+ @Test
+ public void testGetFloatAt() {
+ test("getFloatAt");
+ }
+
+ @Test
+ public void testGetDoubleAt() {
+ test("getDoubleAt");
+ }
+
+ private static final String PACKAGE_NAME = ConstantPoolSubstitutionsTests.class.getPackage().getName();
+ private static final String PACKAGE_NAME_INTERNAL = PACKAGE_NAME.replace('.', '/');
+
+ private static AsmLoader LOADER = new AsmLoader(ConstantPoolSubstitutionsTests.class.getClassLoader());
+
+ public static class AsmLoader extends ClassLoader {
+ Class<?> loaded;
+
+ static final String NAME = PACKAGE_NAME + ".ConstantPoolTest";
+
+ public AsmLoader(ClassLoader parent) {
+ super(parent);
+ }
+
+ @Override
+ protected Class<?> findClass(String name) throws ClassNotFoundException {
+ if (name.equals(NAME)) {
+ if (loaded != null) {
+ return loaded;
+ }
+ byte[] bytes = Gen.generateClass();
+ return (loaded = defineClass(name, bytes, 0, bytes.length));
+ } else {
+ return super.findClass(name);
+ }
+ }
+ }
+
+ static class Gen implements Opcodes {
+ // @formatter:off
+ /*
+ static class ConstantPoolTest {
+ public static int getSize(Object o) {
+ ConstantPool cp = (ConstantPool) o;
+ return cp.getSize();
+ }
+
+ public static int getIntAt(Object o) {
+ ConstantPool cp = (ConstantPool) o;
+ return cp.getIntAt(0);
+ }
+
+ public static long getLongAt(Object o) {
+ ConstantPool cp = (ConstantPool) o;
+ return cp.getLongAt(0);
+ }
+
+ public static float getFloatAt(Object o) {
+ ConstantPool cp = (ConstantPool) o;
+ return cp.getFloatAt(0);
+ }
+
+ public static double getDoubleAt(Object o) {
+ ConstantPool cp = (ConstantPool) o;
+ return cp.getDoubleAt(0);
+ }
+
+ public static String getUTF8At(Object o) {
+ ConstantPool cp = (ConstantPool) o;
+ return cp.getUTF8At(0);
+ }
+ }
+ */
+ // @formatter:on
+
+ static byte[] generateClass() {
+
+ ClassWriter cw = new ClassWriter(0);
+ MethodVisitor mv;
+
+ cw.visit(52, ACC_SUPER, PACKAGE_NAME_INTERNAL + "/ConstantPoolTest", null, "java/lang/Object", null);
+ cw.visitInnerClass(PACKAGE_NAME_INTERNAL + "/ConstantPoolTest", PACKAGE_NAME_INTERNAL + "/ConstantPoolSubstitutionsTests", "ConstantPoolTest",
+ ACC_STATIC);
+ String constantPool = Java8OrEarlier ? "sun/reflect/ConstantPool" : "jdk/internal/reflect/ConstantPool";
+
+ mv = cw.visitMethod(0, "<init>", "()V", null, null);
+ mv.visitCode();
+ mv.visitVarInsn(ALOAD, 0);
+ mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
+ mv.visitInsn(RETURN);
+ mv.visitMaxs(1, 1);
+ mv.visitEnd();
+
+ mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "getSize", "(Ljava/lang/Object;)I", null, null);
+ mv.visitCode();
+ mv.visitVarInsn(ALOAD, 0);
+ mv.visitTypeInsn(CHECKCAST, constantPool);
+ mv.visitVarInsn(ASTORE, 1);
+ mv.visitVarInsn(ALOAD, 1);
+ mv.visitMethodInsn(INVOKEVIRTUAL, constantPool, "getSize", "()I", false);
+ mv.visitInsn(IRETURN);
+ mv.visitMaxs(1, 3);
+ mv.visitEnd();
+
+ mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "getIntAt", "(Ljava/lang/Object;)I", null, null);
+ mv.visitCode();
+ mv.visitVarInsn(ALOAD, 0);
+ mv.visitTypeInsn(CHECKCAST, constantPool);
+ mv.visitVarInsn(ASTORE, 1);
+ mv.visitVarInsn(ALOAD, 1);
+ mv.visitInsn(ICONST_0);
+ mv.visitMethodInsn(INVOKEVIRTUAL, constantPool, "getIntAt", "(I)I", false);
+ mv.visitInsn(IRETURN);
+ mv.visitMaxs(2, 3);
+ mv.visitEnd();
+
+ mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "getLongAt", "(Ljava/lang/Object;)J", null, null);
+ mv.visitCode();
+ mv.visitVarInsn(ALOAD, 0);
+ mv.visitTypeInsn(CHECKCAST, constantPool);
+ mv.visitVarInsn(ASTORE, 1);
+ mv.visitVarInsn(ALOAD, 1);
+ mv.visitInsn(ICONST_0);
+ mv.visitMethodInsn(INVOKEVIRTUAL, constantPool, "getLongAt", "(I)J", false);
+ mv.visitInsn(LRETURN);
+ mv.visitMaxs(2, 3);
+ mv.visitEnd();
+
+ mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "getFloatAt", "(Ljava/lang/Object;)F", null, null);
+ mv.visitCode();
+ mv.visitVarInsn(ALOAD, 0);
+ mv.visitTypeInsn(CHECKCAST, constantPool);
+ mv.visitVarInsn(ASTORE, 1);
+ mv.visitVarInsn(ALOAD, 1);
+ mv.visitInsn(ICONST_0);
+ mv.visitMethodInsn(INVOKEVIRTUAL, constantPool, "getFloatAt", "(I)F", false);
+ mv.visitInsn(FRETURN);
+ mv.visitMaxs(2, 3);
+ mv.visitEnd();
+
+ mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "getDoubleAt", "(Ljava/lang/Object;)D", null, null);
+ mv.visitCode();
+ mv.visitVarInsn(ALOAD, 0);
+ mv.visitTypeInsn(CHECKCAST, constantPool);
+ mv.visitVarInsn(ASTORE, 1);
+ mv.visitVarInsn(ALOAD, 1);
+ mv.visitInsn(ICONST_0);
+ mv.visitMethodInsn(INVOKEVIRTUAL, constantPool, "getDoubleAt", "(I)D", false);
+ mv.visitInsn(DRETURN);
+ mv.visitMaxs(2, 3);
+ mv.visitEnd();
+
+ mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "getUTF8At", "(Ljava/lang/Object;)Ljava/lang/String;", null, null);
+ mv.visitCode();
+ mv.visitVarInsn(ALOAD, 0);
+ mv.visitTypeInsn(CHECKCAST, constantPool);
+ mv.visitVarInsn(ASTORE, 1);
+ mv.visitVarInsn(ALOAD, 1);
+ mv.visitInsn(ICONST_0);
+ mv.visitMethodInsn(INVOKEVIRTUAL, constantPool, "getUTF8At", "(I)Ljava/lang/String;", false);
+ mv.visitInsn(ARETURN);
+ mv.visitMaxs(2, 3);
+ mv.visitEnd();
+ cw.visitEnd();
+
+ return cw.toByteArray();
+ }
+ }
+}