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75 lines
2.9 KiB
75 lines
2.9 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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public class Main {
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/// CHECK-START: void Main.testNewStringFromBytes() builder (after)
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/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromBytes intrinsic:StringNewStringFromBytes
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public static void testNewStringFromBytes() {
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byte[] bytes = { 'f', 'o', 'o' };
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String s = StringFactory.newStringFromBytes(bytes, 0, 0, 3);
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System.out.println(s);
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}
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// The (native) method
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//
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// java.lang.StringFactory.newStringFromChars(int offset, int charCount, char[] data)
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//
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// is recognized as intrinsic StringNewStringFromChars. However,
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// because this method is not public, we cannot call it and check
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// that the compiler actually intrinsifies it (as it does for the
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// StringNewStringFromBytes and StringNewStringFromString
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// intrinsics) with Checker.
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//
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// We can call a public method such as
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//
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// java.lang.StringFactory.newStringFromChars(char[] data)
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//
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// which contains a call to the former (non-public) native method.
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// However, this call will not be inlined (because it is a method in
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// another Dex file and which contains a call, which needs an
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// environment), so we cannot use Checker here to ensure the native
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// call was intrinsified either.
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/// CHECK-START: void Main.testNewStringFromChars() builder (after)
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/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromChars intrinsic:None
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/// CHECK-START: void Main.testNewStringFromChars() inliner (after)
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/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromChars intrinsic:None
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public static void testNewStringFromChars() {
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char[] chars = { 'b', 'a', 'r' };
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String s = StringFactory.newStringFromChars(chars);
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System.out.println(s);
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}
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/// CHECK-START: void Main.testNewStringFromString() builder (after)
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/// CHECK-DAG: InvokeStaticOrDirect method_name:java.lang.StringFactory.newStringFromString intrinsic:StringNewStringFromString
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public static void testNewStringFromString() {
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String s1 = "baz";
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String s2 = StringFactory.newStringFromString(s1);
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System.out.println(s2);
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}
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public static void main(String[] args) throws Exception {
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testNewStringFromBytes();
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testNewStringFromChars();
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testNewStringFromString();
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}
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}
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