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/*
* 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.
*/
//
// Test on correctness in situations where slow paths may be shared
// (actual sharing may vary between different code generators).
//
//
public class Main {
// A method with two loops that can be optimized with dynamic BCE,
// resulting in a two times a deopt on null, a deopt on lower OOB,
// and a deopt on upper OOB.
private static void init(int[] x, int [] y, int l1, int h1, int l2, int h2) {
for (int i = l1; i < h1; i++) {
x[i] = i;
}
for (int i = l2; i < h2; i++) {
y[i] = i;
}
}
// Test that each of the six possible exceptions situations for init()
// are correctly handled by the deopt instructions.
public static void main(String[] args) {
int[] x = new int[100];
int[] y = new int[100];
int z;
// All is well.
z = 0;
reset(x, y);
try {
init(x, y, 0, 100, 0, 100);
} catch (Exception e) {
z = 1;
}
expectEquals(z, 0);
for (int i = 0; i < 100; i++) {
expectEquals(x[i], i);
expectEquals(y[i], i);
}
// Null deopt on x.
z = 0;
reset(x, y);
try {
init(null, y, 0, 100, 0, 100);
} catch (NullPointerException e) {
z = 1;
}
expectEquals(z, 1);
for (int i = 0; i < 100; i++) {
expectEquals(x[i], 0);
expectEquals(y[i], 0);
}
// Lower out-of-bounds on x.
z = 0;
reset(x, y);
try {
init(x, y, -1, 100, 0, 100);
} catch (ArrayIndexOutOfBoundsException e) {
z = 1;
}
expectEquals(z, 1);
for (int i = 0; i < 100; i++) {
expectEquals(x[i], 0);
expectEquals(y[i], 0);
}
// Upper out-of-bounds on x.
z = 0;
reset(x, y);
try {
init(x, y, 0, 101, 0, 100);
} catch (ArrayIndexOutOfBoundsException e) {
z = 1;
}
expectEquals(z, 1);
for (int i = 0; i < 100; i++) {
expectEquals(x[i], i);
expectEquals(y[i], 0);
}
// Null deopt on y.
z = 0;
reset(x, y);
try {
init(x, null, 0, 100, 0, 100);
} catch (NullPointerException e) {
z = 1;
}
expectEquals(z, 1);
for (int i = 0; i < 100; i++) {
expectEquals(x[i], i);
expectEquals(y[i], 0);
}
// Lower out-of-bounds on y.
z = 0;
reset(x, y);
try {
init(x, y, 0, 100, -1, 100);
} catch (ArrayIndexOutOfBoundsException e) {
z = 1;
}
expectEquals(z, 1);
for (int i = 0; i < 100; i++) {
expectEquals(x[i], i);
expectEquals(y[i], 0);
}
// Upper out-of-bounds on y.
z = 0;
reset(x, y);
try {
init(x, y, 0, 100, 0, 101);
} catch (ArrayIndexOutOfBoundsException e) {
z = 1;
}
expectEquals(z, 1);
for (int i = 0; i < 100; i++) {
expectEquals(x[i], i);
expectEquals(y[i], i);
}
System.out.println("passed");
}
private static void reset(int[] x, int[] y) {
for (int i = 0; i < x.length; i++) x[i] = 0;
for (int i = 0; i < y.length; i++) y[i] = 0;
}
private static void expectEquals(int expected, int result) {
if (expected != result) {
throw new Error("Expected: " + expected + ", found: " + result);
}
}
}
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