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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.util.concurrent.*;
/**
* Test for Jit regressions.
*/
public class Main {
public static void main(String args[]) throws Exception {
b2296099Test();
b2302318Test();
b2487514Test();
b5884080Test();
}
static void b2296099Test() throws Exception {
int x = -1190771042;
int dist = 360530809;
int xl = -1190771042;
int distl = 360530809;
for (int i = 0; i < 100000; i++) {
int b = rotateLeft(x, dist);
if (b != 1030884493)
throw new RuntimeException("Unexpected value: " + b
+ " after " + i + " iterations");
}
for (int i = 0; i < 100000; i++) {
long bl = rotateLeft(xl, distl);
if (bl != 1030884493)
throw new RuntimeException("Unexpected value: " + bl
+ " after " + i + " iterations");
}
System.out.println("b2296099 passes");
}
static int rotateLeft(int i, int distance) {
return ((i << distance) | (i >>> (-distance)));
}
static void b2302318Test() {
System.gc();
SpinThread slow = new SpinThread(Thread.MIN_PRIORITY);
SpinThread fast1 = new SpinThread(Thread.NORM_PRIORITY);
SpinThread fast2 = new SpinThread(Thread.MAX_PRIORITY);
slow.setDaemon(true);
fast1.setDaemon(true);
fast2.setDaemon(true);
fast2.start();
slow.start();
fast1.start();
try {
Thread.sleep(3000);
} catch (InterruptedException ie) {/*ignore */}
System.gc();
System.out.println("b2302318 passes");
}
static void b2487514Test() {
PriorityBlockingQueue q = new PriorityBlockingQueue(10);
int catchCount = 0;
q.offer(new Integer(0));
/*
* Warm up the code cache to have toArray() compiled. The key here is
* to pass a compatible type so that there are no exceptions when
* executing the method body (ie the APUT_OBJECT bytecode).
*/
for (int i = 0; i < 1000; i++) {
Integer[] ints = (Integer[]) q.toArray(new Integer[5]);
}
/* Now pass an incompatible type which is guaranteed to throw */
for (int i = 0; i < 1000; i++) {
try {
Object[] obj = q.toArray(new String[5]);
}
catch (ArrayStoreException success) {
catchCount++;
}
}
if (catchCount == 1000) {
System.out.println("b2487514 passes");
}
else {
System.out.println("b2487514 fails: catchCount is " + catchCount +
" (expecting 1000)");
}
}
static void b5884080Test() {
int vA = 1;
int l = 0;
do
{
int k = 0;
do
vA += 1;
while(++k < 100);
} while(++l < 1000);
if (vA == 100001) {
System.out.println("b5884080 passes");
}
else {
System.out.println("b5884080 fails: vA is " + vA +
" (expecting 100001)");
}
}
}
class SpinThread extends Thread {
int mPriority;
SpinThread(int prio) {
super("Spin prio=" + prio);
mPriority = prio;
}
public void run() {
setPriority(mPriority);
while (true) {}
}
}
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