blob: 34af579a4bea0f94213a183028e45498a8e168a7 [file] [log] [blame]
/*
* 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.
*/
public class Main {
/// CHECK-START: void Main.testNewStringFromBytes() builder (after)
/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromBytes intrinsic:StringNewStringFromBytes
public static void testNewStringFromBytes() {
byte[] bytes = { 'f', 'o', 'o' };
String s = StringFactory.newStringFromBytes(bytes, 0, 0, 3);
System.out.println(s);
}
// The (native) method
//
// java.lang.StringFactory.newStringFromChars(int offset, int charCount, char[] data)
//
// is recognized as intrinsic StringNewStringFromChars. However,
// because this method is not public, we cannot call it and check
// that the compiler actually intrinsifies it (as it does for the
// StringNewStringFromBytes and StringNewStringFromString
// intrinsics) with Checker.
//
// We can call a public method such as
//
// java.lang.StringFactory.newStringFromChars(char[] data)
//
// which contains a call to the former (non-public) native method.
// After the inliner runs, we can see the inlined call and check
// that the compiler intrinsifies it.
/// CHECK-START: void Main.testNewStringFromChars() builder (after)
/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromChars intrinsic:None
/// CHECK-START: void Main.testNewStringFromChars() inliner (after)
/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromChars intrinsic:StringNewStringFromChars
public static void testNewStringFromChars() {
char[] chars = { 'b', 'a', 'r' };
String s = StringFactory.newStringFromChars(chars);
System.out.println(s);
}
/// CHECK-START: void Main.testNewStringFromString() builder (after)
/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromString intrinsic:StringNewStringFromString
public static void testNewStringFromString() {
String s1 = "baz";
String s2 = StringFactory.newStringFromString(s1);
System.out.println(s2);
}
public static void main(String[] args) throws Exception {
testNewStringFromBytes();
testNewStringFromChars();
testNewStringFromString();
}
}