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*
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* 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.
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package org.graalvm.compiler.truffle.test;
import java.util.concurrent.CountDownLatch;
import org.graalvm.compiler.core.common.GraalOptions;
import org.graalvm.compiler.truffle.OptimizedCallTarget;
import org.junit.Assert;
import org.junit.Assume;
import org.junit.Test;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.api.nodes.RootNode;
public class SafepointRethrowDeoptPETest extends PartialEvaluationTest {
static final Object RETURN_VALUE = "1 2 3";
static final RuntimeException BREAK_EX = new RuntimeException();
static final RuntimeException CONTINUE_EX = new RuntimeException();
static volatile int terminate;
static volatile int entered;
public static class Test0RootNode extends RootNode {
public Test0RootNode() {
super(null);
}
@Override
public Object execute(VirtualFrame frame) {
entered = 1;
for (;;) {
try {
if (terminate != 0) {
throw BREAK_EX;
} else {
throw CONTINUE_EX;
}
} catch (RuntimeException e) {
if (e == BREAK_EX) {
break;
} else if (e == CONTINUE_EX) {
continue;
}
throw e;
}
}
return RETURN_VALUE;
}
}
public abstract static class TestNode extends Node {
public abstract void executeVoid();
}
public static class ThrowNode extends TestNode {
private final RuntimeException exception;
public ThrowNode(RuntimeException exception) {
this.exception = exception;
}
@Override
public void executeVoid() {
throw exception;
}
}
public static class Test1RootNode extends RootNode {
@Child private ThrowNode throwBreak = new ThrowNode(BREAK_EX);
@Child private ThrowNode throwContinue = new ThrowNode(CONTINUE_EX);
public Test1RootNode() {
super(null);
}
@Override
public Object execute(VirtualFrame frame) {
entered = 1;
for (;;) {
try {
if (terminate != 0) {
throwBreak.executeVoid();
} else {
throwContinue.executeVoid();
}
} catch (RuntimeException e) {
if (e == BREAK_EX) {
break;
} else if (e == CONTINUE_EX) {
continue;
}
throw e;
}
}
return RETURN_VALUE;
}
}
public static class BreakOrContinueNode extends TestNode {
@Child private ThrowNode throwBreak = new ThrowNode(BREAK_EX);
@Child private ThrowNode throwContinue = new ThrowNode(CONTINUE_EX);
@Override
public void executeVoid() {
if (terminate != 0) {
throwBreak.executeVoid();
} else {
throwContinue.executeVoid();
}
}
}
public static class ExceptionTargetNode extends TestNode {
@Child private TestNode body;
private final RuntimeException exception;
public ExceptionTargetNode(RuntimeException exception, TestNode body) {
this.body = body;
this.exception = exception;
}
@Override
public void executeVoid() {
try {
body.executeVoid();
} catch (RuntimeException e) {
if (e != exception) {
throw e;
}
}
}
}
public static class LoopNode extends TestNode {
@Child private TestNode body;
public LoopNode(TestNode body) {
this.body = body;
}
@Override
public void executeVoid() {
for (;;) {
body.executeVoid();
}
}
}
public static class Test2RootNode extends RootNode {
@Child private TestNode body;
public Test2RootNode() {
super(null);
this.body = new ExceptionTargetNode(BREAK_EX, new LoopNode(new ExceptionTargetNode(CONTINUE_EX, new BreakOrContinueNode())));
}
@Override
public Object execute(VirtualFrame frame) {
entered = 1;
body.executeVoid();
return RETURN_VALUE;
}
}
@Test
public void test() {
Assume.assumeTrue(GraalOptions.GenLoopSafepoints.getValue(getInitialOptions()));
synchronized (SafepointRethrowDeoptPETest.class) { // safeguard static fields
testInner(new Test0RootNode());
testInner(new Test1RootNode());
testInner(new Test2RootNode());
}
}
private void testInner(RootNode rootNode) {
terminate = 1; // executed 3 times
OptimizedCallTarget compiledMethod = compileHelper(rootNode.toString(), rootNode, new Object[0]);
terminate = 0;
entered = 0;
CountDownLatch cdl = new CountDownLatch(1);
Thread t1 = new Thread(() -> {
try {
cdl.await();
while (entered == 0) {
/* spin */
}
/* Thread.sleep(100); */
compiledMethod.invalidate();
} catch (InterruptedException e) {
Assert.fail("interrupted");
}
terminate = 1;
});
Thread t2 = new Thread(() -> {
cdl.countDown();
Object result = compiledMethod.call();
Assert.assertEquals(RETURN_VALUE, result);
});
t1.start();
t2.start();
try {
t1.join();
t2.join();
} catch (InterruptedException e) {
Assert.fail("interrupted");
}
}
}