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/*
* Copyright (C) 2015 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 int foo(int start, int[] array) {
int result = 0;
// We will create HDeoptimize nodes for this first loop, and a phi
// for the array length which will only be used within the loop.
for (int i = start; i < 3; i++) {
result += array[i];
for (int j = 0; j < 2; ++j) {
// The HBoundsCheck for this array access will be updated to access
// the array length phi created for the deoptimization checks of the
// first loop. This crashed the compiler which used to DCHECK an array
// length in a bounds check cannot be a phi.
result += array[j];
}
}
return result;
}
public static int bar(int start, int[] array) {
int result = 0;
for (int i = start; i < 3; i++) {
result += array[i];
for (int j = 0; j < 2; ++j) {
result += array[j];
// The following operations would lead to BCE wanting to add another
// deoptimization, but it crashed assuming the input of a `HBoundsCheck`
// must be a `HArrayLength`.
result += array[0];
result += array[1];
result += array[2];
}
}
return result;
}
public static void main(String[] args) {
int[] a = new int[] { 1, 2, 3, 4, 5 };
int result = foo(1, a);
if (result != 11) {
throw new Error("Got " + result + ", expected " + 11);
}
result = bar(1, a);
if (result != 35) {
throw new Error("Got " + result + ", expected " + 35);
}
}
}
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