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/*
* Copyright (C) 2022 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 {
try {
$noinline$testEndsWithThrow();
throw new Exception("Unreachable");
} catch (Error expected) {
}
try {
$noinline$testEndsWithThrowButNotDirectly();
throw new Exception("Unreachable");
} catch (Error expected) {
}
}
// Empty methods are easy to inline anywhere.
private static void easyToInline() {}
private static void $inline$easyToInline() {}
private static void twoLevelEasyToInline() { easyToInline(); }
/// CHECK-START: int Main.$noinline$testEndsWithThrow() inliner (before)
/// CHECK: InvokeStaticOrDirect method_name:Main.twoLevelEasyToInline
/// CHECK-START: int Main.$noinline$testEndsWithThrow() inliner (after)
/// CHECK: InvokeStaticOrDirect method_name:Main.twoLevelEasyToInline
static int $noinline$testEndsWithThrow() {
// Use two level inlining to avoid a pattern match in the inliner.
// The pattern matching is deliberately done before we check if inlining is "encouraged"
// which includes checking if the block ends with a `throw`.
twoLevelEasyToInline();
throw new Error("");
}
// Currently we only stop inlining if the method's basic block ends with a throw. We do not stop
// inlining for methods that eventually always end with a throw.
static int $noinline$testEndsWithThrowButNotDirectly() {
$inline$easyToInline();
if (justABoolean) {
$inline$easyToInline();
} else {
$inline$easyToInline();
}
throw new Error("");
}
static boolean justABoolean;
}
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