jdk-sandbox: comparison hotspot/test/compiler/whitebox/CompilerWhiteBoxTest.java

equal deleted inserted replaced

-:11c1a00efeb4
+:92390f57e8b1
 * 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.
 */
+import com.sun.management.HotSpotDiagnosticMXBean;
+import com.sun.management.VMOption;
 import sun.hotspot.WhiteBox;
 import sun.management.ManagementFactoryHelper;
-import com.sun.management.HotSpotDiagnosticMXBean;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Executable;
 import java.lang.reflect.Method;
+import java.util.Objects;
-/*
+import java.util.concurrent.Callable;
+/**
+* Abstract class for WhiteBox testing of JIT.
+*
 * @author igor.ignatyev@oracle.com
 */
 public abstract class CompilerWhiteBoxTest {
+/** {@code CompLevel::CompLevel_none} -- Interpreter */
+protected static int COMP_LEVEL_NONE = 0;
+/** {@code CompLevel::CompLevel_any}, {@code CompLevel::CompLevel_all} */
+protected static int COMP_LEVEL_ANY = -1;
+/** Instance of WhiteBox */
 protected static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
-protected static final Method METHOD = getMethod("method");
+/** Value of {@code -XX:CompileThreshold} */
 protected static final int COMPILE_THRESHOLD
 = Integer.parseInt(getVMOption("CompileThreshold", "10000"));
+/** Value of {@code -XX:BackgroundCompilation} */
 protected static final boolean BACKGROUND_COMPILATION
 = Boolean.valueOf(getVMOption("BackgroundCompilation", "true"));
+/** Value of {@code -XX:TieredCompilation} */
 protected static final boolean TIERED_COMPILATION
 = Boolean.valueOf(getVMOption("TieredCompilation", "false"));
+/** Value of {@code -XX:TieredStopAtLevel} */
-protected static Method getMethod(String name) {
+protected static final int TIERED_STOP_AT_LEVEL
-try {
+= Integer.parseInt(getVMOption("TieredStopAtLevel", "0"));
-return CompilerWhiteBoxTest.class.getDeclaredMethod(name);
-} catch (NoSuchMethodException | SecurityException e) {
+/**
-throw new RuntimeException(
+* Returns value of VM option.
-"exception on getting method " + name, e);
+*
-}
+* @param name option's name
-}
+* @return value of option or {@code null}, if option doesn't exist
+* @throws NullPointerException if name is null
+*/
 protected static String getVMOption(String name) {
-String result;
+Objects.requireNonNull(name);
 HotSpotDiagnosticMXBean diagnostic
 = ManagementFactoryHelper.getDiagnosticMXBean();
-result = diagnostic.getVMOption(name).getValue();
+VMOption tmp;
-return result;
+try {
-}
+tmp = diagnostic.getVMOption(name);
+} catch (IllegalArgumentException e) {
+tmp = null;
+}
+return (tmp == null ? null : tmp.getValue());
+}
+/**
+* Returns value of VM option or default value.
+*
+* @param name         option's name
+* @param defaultValue default value
+* @return value of option or {@code defaultValue}, if option doesn't exist
+* @throws NullPointerException if name is null
+* @see #getVMOption(String)
+*/
 protected static String getVMOption(String name, String defaultValue) {
 String result = getVMOption(name);
 return result == null ? defaultValue : result;
 }
-protected final void runTest() throws RuntimeException {
+/** tested method */
+protected final Executable method;
+private final Callable<Integer> callable;
+/**
+* Constructor.
+*
+* @param testCase object, that contains tested method and way to invoke it.
+*/
+protected CompilerWhiteBoxTest(TestCase testCase) {
+Objects.requireNonNull(testCase);
+System.out.println("TEST CASE:" + testCase.name());
+method = testCase.executable;
+callable = testCase.callable;
+}
+/**
+* Template method for testing. Prints tested method's info before
+* {@linkplain #test()} and after {@linkplain #test()} or on thrown
+* exception.
+*
+* @throws RuntimeException if method {@linkplain #test()} throws any
+*                          exception
+* @see #test()
+*/
+protected final void runTest() {
 if (ManagementFactoryHelper.getCompilationMXBean() == null) {
 System.err.println(
 "Warning: test is not applicable in interpreted mode");
 return;
 }
 System.out.println("at test's start:");
-printInfo(METHOD);
+printInfo();
 try {
 test();
 } catch (Exception e) {
 System.out.printf("on exception '%s':", e.getMessage());
-printInfo(METHOD);
+printInfo();
 e.printStackTrace();
+if (e instanceof RuntimeException) {
+throw (RuntimeException) e;
+}
 throw new RuntimeException(e);
 }
 System.out.println("at test's end:");
-printInfo(METHOD);
+printInfo();
 }
-protected static void checkNotCompiled(Method method) {
+/**
+* Checks, that {@linkplain #method} is not compiled.
+*
+* @throws RuntimeException if {@linkplain #method} is in compiler queue or
+*                          is compiled, or if {@linkplain #method} has zero
+*                          compilation level.
+*/
+protected final void checkNotCompiled() {
 if (WHITE_BOX.isMethodQueuedForCompilation(method)) {
 throw new RuntimeException(method + " must not be in queue");
 }
 if (WHITE_BOX.isMethodCompiled(method)) {
 throw new RuntimeException(method + " must be not compiled");
 if (WHITE_BOX.getMethodCompilationLevel(method) != 0) {
 throw new RuntimeException(method + " comp_level must be == 0");
 }
 }
-protected static void checkCompiled(Method method)
+/**
-throws InterruptedException {
+* Checks, that {@linkplain #method} is compiled.
+*
+* @throws RuntimeException if {@linkplain #method} isn't in compiler queue
+*                          and isn't compiled, or if {@linkplain #method}
+*                          has nonzero compilation level
+*/
+protected final void checkCompiled() {
 final long start = System.currentTimeMillis();
-waitBackgroundCompilation(method);
+waitBackgroundCompilation();
 if (WHITE_BOX.isMethodQueuedForCompilation(method)) {
 System.err.printf("Warning: %s is still in queue after %dms%n",
 method, System.currentTimeMillis() - start);
 return;
 }
 if (WHITE_BOX.getMethodCompilationLevel(method) == 0) {
 throw new RuntimeException(method + " comp_level must be != 0");
 }
 }
-protected static void waitBackgroundCompilation(Method method)
+/**
-throws InterruptedException {
+* Waits for completion of background compilation of {@linkplain #method}.
+*/
+protected final void waitBackgroundCompilation() {
 if (!BACKGROUND_COMPILATION) {
 return;
 }
 final Object obj = new Object();
-synchronized (obj) {
+for (int i = 0; i < 10
-for (int i = 0; i < 10; ++i) {
+&& WHITE_BOX.isMethodQueuedForCompilation(method); ++i) {
-if (!WHITE_BOX.isMethodQueuedForCompilation(method)) {
+synchronized (obj) {
-break;
+try {
+obj.wait(1000);
+} catch (InterruptedException e) {
+Thread.currentThread().interrupt();
 }
-obj.wait(1000);
+}
 }
 }
-}
+/**
-protected static void printInfo(Method method) {
+* Prints information about {@linkplain #method}.
+*/
+protected final void printInfo() {
 System.out.printf("%n%s:%n", method);
 System.out.printf("\tcompilable:\t%b%n",
 WHITE_BOX.isMethodCompilable(method));
 System.out.printf("\tcompiled:\t%b%n",
 WHITE_BOX.isMethodCompiled(method));
 WHITE_BOX.isMethodQueuedForCompilation(method));
 System.out.printf("compile_queues_size:\t%d%n%n",
 WHITE_BOX.getCompileQueuesSize());
 }
+/**
+* Executes testing.
+*/
 protected abstract void test() throws Exception;
+/**
+* Tries to trigger compilation of {@linkplain #method} by call
+* {@linkplain #callable} enough times.
+*
+* @return accumulated result
+* @see #compile(int)
+*/
 protected final int compile() {
 return compile(Math.max(COMPILE_THRESHOLD, 150000));
 }
+/**
+* Tries to trigger compilation of {@linkplain #method} by call
+* {@linkplain #callable} specified times.
+*
+* @param count invocation count
+* @return accumulated result
+*/
 protected final int compile(int count) {
 int result = 0;
+Integer tmp;
 for (int i = 0; i < count; ++i) {
-result += method();
+try {
+tmp = callable.call();
+} catch (Exception e) {
+tmp = null;
+}
+result += tmp == null ? 0 : tmp;
 }
 System.out.println("method was invoked " + count + " times");
 return result;
 }
-protected int method() {
-return 42;
-}
 }
+/**
+* Utility structure containing tested method and object to invoke it.
+*/
+enum TestCase {
+/** constructor test case */
+CONSTRUCTOR_TEST(Helper.CONSTRUCTOR, Helper.CONSTRUCTOR_CALLABLE),
+/** method test case */
+METOD_TEST(Helper.METHOD, Helper.METHOD_CALLABLE),
+/** static method test case */
+STATIC_TEST(Helper.STATIC, Helper.STATIC_CALLABLE);
+/** tested method */
+final Executable executable;
+/** object to invoke {@linkplain #executable} */
+final Callable<Integer> callable;
+private TestCase(Executable executable, Callable<Integer> callable) {
+this.executable = executable;
+this.callable = callable;
+}
+private static class Helper {
+private static final Callable<Integer> CONSTRUCTOR_CALLABLE
+= new Callable<Integer>() {
+@Override
+public Integer call() throws Exception {
+return new Helper(1337).hashCode();
+}
+};
+private static final Callable<Integer> METHOD_CALLABLE
+= new Callable<Integer>() {
+private final Helper helper = new Helper();
+@Override
+public Integer call() throws Exception {
+return helper.method();
+}
+};
+private static final Callable<Integer> STATIC_CALLABLE
+= new Callable<Integer>() {
+@Override
+public Integer call() throws Exception {
+return staticMethod();
+}
+};
+private static final Constructor CONSTRUCTOR;
+private static final Method METHOD;
+private static final Method STATIC;
+static {
+try {
+CONSTRUCTOR = Helper.class.getDeclaredConstructor(int.class);
+} catch (NoSuchMethodException | SecurityException e) {
+throw new RuntimeException(
+"exception on getting method Helper.<init>(int)", e);
+}
+try {
+METHOD = Helper.class.getDeclaredMethod("method");
+} catch (NoSuchMethodException | SecurityException e) {
+throw new RuntimeException(
+"exception on getting method Helper.method()", e);
+}
+try {
+STATIC = Helper.class.getDeclaredMethod("staticMethod");
+} catch (NoSuchMethodException | SecurityException e) {
+throw new RuntimeException(
+"exception on getting method Helper.staticMethod()", e);
+}
+}
+private static int staticMethod() {
+return 1138;
+}
+private int method() {
+return 42;
+}
+private final int x;
+public Helper() {
+x = 0;
+}
+private Helper(int x) {
+this.x = x;
+}
+@Override
+public int hashCode() {
+return x;
+}
+}
+}

changeset 17015	92390f57e8b1
parent 16689	efce070b8d42
child 17126	42a942feeea2