129 lines
3.3 KiB
Java
129 lines
3.3 KiB
Java
/*
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* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package compiler.c2.irTests;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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import jdk.test.lib.Asserts;
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import compiler.lib.ir_framework.*;
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/*
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* @test
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* @bug 8276455
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* @summary Test C2 iterative Escape Analysis to remove all allocations in test
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* @library /test/lib /
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* @run driver compiler.c2.irTests.TestIterativeEA
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*/
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public class TestIterativeEA {
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public static void main(String[] args) {
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TestFramework.run();
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}
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static class MyClass {
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int val;
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public MyClass(int val) {
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this.val = val;
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}
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}
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static class AbstractClass {
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final int unused;
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public AbstractClass() {
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unused = 42;
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}
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}
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static class HolderWithSuper extends AbstractClass {
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final MyClass obj;
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public HolderWithSuper(MyClass obj) {
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this.obj = obj;
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}
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}
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static class Holder {
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final MyClass obj;
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public Holder(MyClass obj) {
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this.obj = obj;
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}
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}
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static class GenericHolder {
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final Object obj;
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public GenericHolder(Object obj) {
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this.obj = obj;
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}
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}
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@Test
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@Arguments(values = { Argument.RANDOM_EACH })
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@IR(failOn = { IRNode.ALLOC })
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public static int testSlow(int val) {
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MyClass obj = new MyClass(val);
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HolderWithSuper h1 = new HolderWithSuper(obj);
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GenericHolder h2 = new GenericHolder(h1);
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return ((HolderWithSuper)h2.obj).obj.val;
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}
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@Test
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@Arguments(values = { Argument.RANDOM_EACH })
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@IR(failOn = { IRNode.ALLOC })
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public static int testFast(int val) {
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MyClass obj = new MyClass(val);
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Holder h1 = new Holder(obj);
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GenericHolder h2 = new GenericHolder(h1);
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return ((Holder)h2.obj).obj.val;
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}
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static class A {
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int i;
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public A(int i) {
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this.i = i;
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}
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}
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static class B {
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A a;
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public B(A a) {
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this.a = a;
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}
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}
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static class C {
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B b;
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public C(B b) {
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this.b = b;
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}
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}
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@Test
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@Arguments(values = { Argument.RANDOM_EACH })
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@IR(failOn = { IRNode.ALLOC })
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static int testNested(int i) {
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C c = new C(new B(new A(i)));
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return c.b.a.i;
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}
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}
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