blob: 2d43a39d35ced73fab2698aeaa5f1105e7f1aa13 [file] [log] [blame]
/*
* 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;
}