/*
|
* Copyright (C) 2017 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.
|
*/
|
|
public class Main {
|
public static void main(String[] args) throws Exception {
|
System.loadLibrary(args[0]);
|
if (!hasJit()) {
|
return;
|
}
|
// Force initialization.
|
Foo.initialize();
|
}
|
|
public native static boolean hasJitCompiledEntrypoint(Class<?> cls, String methodName);
|
private native static boolean hasJit();
|
}
|
|
class Foo {
|
// This method needs to be virtual for the test. Otherwise if it's a static method,
|
// the JIT compiler won't compile while its entrypoint is the resolution stub.
|
void $noinline$hotMethod() {
|
for (int i = 0; i < array.length; ++i) {
|
array[i] = array;
|
}
|
}
|
|
static {
|
array = new Object[10000];
|
while (!Main.hasJitCompiledEntrypoint(Foo.class, "$noinline$hotMethod")) {
|
new Foo().$noinline$hotMethod();
|
try {
|
// Sleep to give a chance for the JIT to compile `hotMethod`.
|
Thread.sleep(100);
|
} catch (Exception e) {
|
// Ignore
|
}
|
}
|
}
|
|
static void initialize() {
|
}
|
|
static Object[] array;
|
}
|
