/* * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /** * @test * @bug 8331033 * @summary EA fails with "EA unexpected CallLeaf unsafe_setmemory" after JDK-8329331 * @requires vm.compMode != "Xint" * * @run main/othervm -Xbatch -XX:-TieredCompilation Test8331033 * */ import java.lang.foreign.*; class MyClass { public int field1; public int field2; public int field3; public int field4; public MyClass(int field1, int field2, int field3, int field4) { this.field1 = field1; this.field2 = field2; this.field3 = field3; this.field4 = field4; } } public class Test8331033 { public static int micro1(int ctr) { // non-escaping object, EA sweepable, values are forwarded to users, additional // bookeeping (SafepointScalarObjectNode) for eliminated objects at SafePoints // With -XX:-Inline, constructor will not be inlined and hence AllocateNode are // considered escapable. MyClass obj = new MyClass(10, 20, 30, 40); return obj.field1 * ctr + obj.field2 + obj.field3 + obj.field4; } public static int micro2(int ctr) { // small known length arrays of size less than // -XX:+EliminateAllocationArraySizeLimit are eliminatable if non-escaping. int[] arr = new int[5]; arr[0] = 10; arr[1] = 10; arr[2] = 10; arr[3] = 10; arr[4] = 10; // value forwarding will forward constants to expressions. return ctr * arr[0] + arr[1] + arr[2] + arr[3] + arr[4]; } public static int micro3(int ctr) { int[] arr = new int[8]; MemorySegment ms = MemorySegment.ofArray(arr); ms.fill((byte) 10); return ctr * ms.get(ValueLayout.JAVA_INT, 12) + ms.get(ValueLayout.JAVA_INT, 16) + ms.get(ValueLayout.JAVA_INT, 20) + ms.get(ValueLayout.JAVA_INT, 24); } public static void main(String[] args) { { int res = 0; for (int i = 0; i < 100000; i++) { res += micro1(i); } System.out.println("[res] " + res); } { int res = 0; for (int i = 0; i < 100000; i++) { res += micro2(i); } System.out.println("[res] " + res); } { int res = 0; for (int i = 0; i < 100000; i++) { res += micro3(i); } System.out.println("[res] " + res); } } }