| /* |
| * 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(); |
| } |
| } |