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/*
* Copyright (C) 2019 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 corner cases for loop vectorizer.
*/
public class Main {
/// CHECK-START: void Main.$noinline$testDivZeroCheck() loop_optimization (before)
/// CHECK: DivZeroCheck
/// CHECK-NOT: DivZeroCheck
/// CHECK-START: void Main.$noinline$testDivZeroCheck() loop_optimization (after)
/// CHECK: DivZeroCheck
public static void $noinline$testDivZeroCheck() {
int[] a = new int[10];
for (int i = 0; i < a.length; ++i) {
int x = 42 / 0; // unused but throwing
a[i] = 42;
}
}
static class Base {}
static class Foo extends Base {}
static class Bar extends Base {}
/// CHECK-START: void Main.$noinline$testCheckCast() loop_optimization (before)
/// CHECK: CheckCast
/// CHECK-NOT: CheckCast
/// CHECK-START: void Main.$noinline$testCheckCast() loop_optimization (after)
/// CHECK: CheckCast
public static void $noinline$testCheckCast() {
Base base = new Foo();
int[] a = new int[10];
for (int i = 0; i < a.length; ++i) {
Bar bar = (Bar) base; // unused but throwing
a[i] = 42;
}
}
/// CHECK-START: void Main.$noinline$testBoundsCheck() loop_optimization (before)
/// CHECK: BoundsCheck
/// CHECK-NOT: BoundsCheck
/// CHECK-START: void Main.$noinline$testBoundsCheck() loop_optimization (after)
/// CHECK: BoundsCheck
public static void $noinline$testBoundsCheck() {
int[] a = new int[10];
for (int i = 0; i < a.length; ++i) {
int x = a[11]; // unused but throwing
a[i] = 42;
}
}
public static void main(String[] args) {
// We must not optimize any of the exceptions away.
try {
$noinline$testDivZeroCheck();
} catch (java.lang.ArithmeticException e) {
System.out.println("DivZeroCheck");
}
try {
$noinline$testCheckCast();
} catch (java.lang.ClassCastException e) {
System.out.println("CheckCast");
}
try {
$noinline$testBoundsCheck();
} catch (java.lang.ArrayIndexOutOfBoundsException e) {
System.out.println("BoundsCheck");
}
}
}
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