blob: fc7fdea2aa7c494614d621ca30980d7d18f60204 [file] [log] [blame]
/*
* Copyright (C) 2016 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.lang.reflect.Method;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
class DummyObject {
public static boolean sHashCodeInvoked = false;
private int i;
public DummyObject(int i) {
this.i = i;
}
public boolean equals(Object obj) {
return (obj instanceof DummyObject) && (i == ((DummyObject)obj).i);
}
public int hashCode() {
sHashCodeInvoked = true;
Main.assertIsManaged();
Main.deoptimizeAll();
Main.assertIsInterpreted();
return i % 64;
}
}
public class Main {
static boolean sFlag = false;
public static native void deoptimizeAll();
public static native void undeoptimizeAll();
public static native void assertIsInterpreted();
public static native void assertIsManaged();
public static native void assertCallerIsInterpreted();
public static native void disableStackFrameAsserts();
public static native boolean hasJit();
private static native void ensureJitCompiled(Class<?> itf, String method_name);
public static void execute(Runnable runnable) throws Exception {
Thread t = new Thread(runnable);
t.start();
t.join();
}
public static void ensureAllJitCompiled() {
ensureJitCompiled(HashMap.class, "hash");
ensureJitCompiled(Main.class, "$noinline$run1");
ensureJitCompiled(Main.class, "$noinline$run2");
ensureJitCompiled(Main.class, "$noinline$run3A");
ensureJitCompiled(Main.class, "$noinline$run3B");
ensureJitCompiled(DummyObject.class, "hashCode");
}
public static void main(String[] args) throws Exception {
System.loadLibrary(args[0]);
// Only test stack frames in compiled mode.
if (!hasJit()) {
disableStackFrameAsserts();
}
ensureAllJitCompiled();
final HashMap<DummyObject, Long> map = new HashMap<DummyObject, Long>();
// Single-frame deoptimization that covers partial fragment.
execute(new Runnable() {
public void run() {
ensureJitCompiled(this.getClass(), "runInternal");
runInternal();
}
public void runInternal() {
int[] arr = new int[3];
assertIsManaged();
int res = $noinline$run1(arr);
assertIsManaged(); // Only single frame is deoptimized.
if (res != 79) {
System.out.println("Failure 1!");
System.exit(0);
}
}
});
// Single-frame deoptimization that covers a full fragment.
execute(new Runnable() {
public void run() {
ensureJitCompiled(this.getClass(), "runInternal");
runInternal();
}
public void runInternal() {
try {
int[] arr = new int[3];
assertIsManaged();
// Use reflection to call $noinline$run2 so that it does
// full-fragment deoptimization since that is an upcall.
Class<?> cls = Class.forName("Main");
Method method = cls.getDeclaredMethod("$noinline$run2", int[].class);
double res = (double)method.invoke(Main.class, arr);
assertIsManaged(); // Only single frame is deoptimized.
if (res != 79.3d) {
System.out.println("Failure 2!");
System.exit(0);
}
} catch (Exception e) {
e.printStackTrace(System.out);
}
}
});
// Full-fragment deoptimization.
execute(new Runnable() {
public void run() {
ensureJitCompiled(this.getClass(), "runInternal");
runInternal();
}
public void runInternal() {
assertIsManaged();
float res = $noinline$run3B();
assertIsInterpreted(); // Every deoptimizeable method is deoptimized.
if (res != 0.034f) {
System.out.println("Failure 3!");
System.exit(0);
}
}
});
undeoptimizeAll(); // Make compiled code useable again.
ensureAllJitCompiled();
// Partial-fragment deoptimization.
execute(new Runnable() {
public void run() {
ensureJitCompiled(this.getClass(), "runInternal");
ensureJitCompiled(HashMap.class, "hash");
runInternal();
}
public void runInternal() {
try {
assertIsManaged();
map.put(new DummyObject(10), Long.valueOf(100));
assertIsInterpreted(); // Every deoptimizeable method is deoptimized.
} catch (Exception e) {
e.printStackTrace(System.out);
}
}
});
undeoptimizeAll(); // Make compiled code useable again.
ensureAllJitCompiled();
if (!DummyObject.sHashCodeInvoked) {
System.out.println("hashCode() method not invoked!");
}
if (map.get(new DummyObject(10)) != 100) {
System.out.println("Wrong hashmap value!");
}
System.out.println("Finishing");
}
public static int $noinline$run1(int[] arr) {
assertIsManaged();
// Prevent inlining.
if (sFlag) {
throw new Error();
}
boolean caught = false;
// BCE will use deoptimization for the code below.
try {
arr[0] = 1;
arr[1] = 1;
arr[2] = 1;
// This causes AIOOBE and triggers deoptimization from compiled code.
arr[3] = 1;
} catch (ArrayIndexOutOfBoundsException e) {
assertIsInterpreted(); // Single-frame deoptimization triggered.
caught = true;
}
if (!caught) {
System.out.println("Expected exception");
}
assertIsInterpreted();
return 79;
}
public static double $noinline$run2(int[] arr) {
assertIsManaged();
// Prevent inlining.
if (sFlag) {
throw new Error();
}
boolean caught = false;
// BCE will use deoptimization for the code below.
try {
arr[0] = 1;
arr[1] = 1;
arr[2] = 1;
// This causes AIOOBE and triggers deoptimization from compiled code.
arr[3] = 1;
} catch (ArrayIndexOutOfBoundsException e) {
assertIsInterpreted(); // Single-frame deoptimization triggered.
caught = true;
}
if (!caught) {
System.out.println("Expected exception");
}
assertIsInterpreted();
return 79.3d;
}
public static float $noinline$run3A() {
assertIsManaged();
// Prevent inlining.
if (sFlag) {
throw new Error();
}
// Deoptimize callers.
deoptimizeAll();
assertIsInterpreted();
assertCallerIsInterpreted(); // $noinline$run3B is deoptimizeable.
return 0.034f;
}
public static float $noinline$run3B() {
assertIsManaged();
// Prevent inlining.
if (sFlag) {
throw new Error();
}
float res = $noinline$run3A();
assertIsInterpreted();
return res;
}
}