107 lines
3.2 KiB
Java
107 lines
3.2 KiB
Java
/*
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* Copyright (c) 2024, 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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/**
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* @test
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* @bug 8331033
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* @summary EA fails with "EA unexpected CallLeaf unsafe_setmemory" after JDK-8329331
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* @requires vm.compMode != "Xint"
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*
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* @run main/othervm -Xbatch -XX:-TieredCompilation Test8331033
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*
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*/
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import java.lang.foreign.*;
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class MyClass {
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public int field1;
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public int field2;
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public int field3;
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public int field4;
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public MyClass(int field1, int field2, int field3, int field4) {
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this.field1 = field1;
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this.field2 = field2;
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this.field3 = field3;
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this.field4 = field4;
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}
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}
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public class Test8331033 {
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public static int micro1(int ctr) {
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// non-escaping object, EA sweepable, values are forwarded to users, additional
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// bookeeping (SafepointScalarObjectNode) for eliminated objects at SafePoints
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// With -XX:-Inline, constructor will not be inlined and hence AllocateNode are
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// considered escapable.
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MyClass obj = new MyClass(10, 20, 30, 40);
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return obj.field1 * ctr + obj.field2 + obj.field3 + obj.field4;
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}
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public static int micro2(int ctr) {
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// small known length arrays of size less than
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// -XX:+EliminateAllocationArraySizeLimit are eliminatable if non-escaping.
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int[] arr = new int[5];
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arr[0] = 10;
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arr[1] = 10;
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arr[2] = 10;
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arr[3] = 10;
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arr[4] = 10;
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// value forwarding will forward constants to expressions.
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return ctr * arr[0] + arr[1] + arr[2] + arr[3] + arr[4];
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}
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public static int micro3(int ctr) {
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int[] arr = new int[8];
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MemorySegment ms = MemorySegment.ofArray(arr);
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ms.fill((byte) 10);
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return ctr * ms.get(ValueLayout.JAVA_INT, 12) +
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ms.get(ValueLayout.JAVA_INT, 16) +
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ms.get(ValueLayout.JAVA_INT, 20) +
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ms.get(ValueLayout.JAVA_INT, 24);
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}
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public static void main(String[] args) {
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{
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int res = 0;
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for (int i = 0; i < 100000; i++) {
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res += micro1(i);
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}
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System.out.println("[res] " + res);
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}
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{
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int res = 0;
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for (int i = 0; i < 100000; i++) {
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res += micro2(i);
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}
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System.out.println("[res] " + res);
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}
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{
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int res = 0;
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for (int i = 0; i < 100000; i++) {
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res += micro3(i);
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}
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System.out.println("[res] " + res);
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}
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}
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}
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