120 lines
3.9 KiB
Java
120 lines
3.9 KiB
Java
/*
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* Copyright (c) 2020, 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 8237581
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* @summary Testing allocation expansion when there is no use of the allocation
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* @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:+PrintCompilation -XX:+PrintEliminateAllocations -XX:CompileCommand=compileonly,compiler.allocation.TestAllocation::test*
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* compiler.allocation.TestAllocation
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* @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:+PrintCompilation -XX:+PrintEliminateAllocations -XX:-DoEscapeAnalysis -XX:CompileCommand=compileonly,compiler.allocation.TestAllocation::test*
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* compiler.allocation.TestAllocation
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*/
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package compiler.allocation;
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public class TestAllocation {
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public static volatile int size = 128;
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public static volatile int neg_size = -128;
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public int testUnknownPositiveArrayLength() {
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Payload w = new Payload(17, size);
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return w.i + w.ba.length;
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}
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public int testStoreCapture() {
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byte[] bs = new byte[1];
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bs[0] = 1;
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return bs.length;
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}
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public int testUnknownNegativeArrayLength() {
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boolean success = false;
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try {
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Payload w = new Payload(17, neg_size);
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return w.i + w.ba.length;
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} catch (NegativeArraySizeException e) {
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success = true;
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}
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if (!success) {
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throw new RuntimeException("Should have thrown NegativeArraySizeException");
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}
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return 0;
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}
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public int testConstantPositiveArrayLength() {
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Payload w = new Payload(173, 10);
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return w.i + w.ba.length;
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}
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public int testConstantPositiveArrayLength2() {
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Payload w = new Payload(173, 10);
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w.i = 17;
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w.ba = new byte[10];
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return w.i + w.ba.length;
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}
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public int testConstantNegativeArrayLength() {
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boolean success = false;
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try {
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Payload w = new Payload(173, -10);
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return w.i + w.ba.length;
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} catch (NegativeArraySizeException e) {
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success = true;
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}
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if (!success) {
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throw new RuntimeException("Should have thrown NegativeArraySizeException");
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}
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return 0;
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}
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public static class Payload {
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public int i;
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public byte ba[];
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public Payload(int i, int size) {
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this.i = i;
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this.ba = new byte[size];
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}
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}
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public static void main(String[] strArr) {
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TestAllocation test = new TestAllocation();
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for (int i = 0; i < 10_000; i++ ) {
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test.testUnknownPositiveArrayLength();
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test.testUnknownNegativeArrayLength();
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test.testConstantPositiveArrayLength();
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test.testConstantPositiveArrayLength2();
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test.testConstantNegativeArrayLength();
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test.testStoreCapture();
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}
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}
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}
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class Wrapper {
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int[] arr;
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void setArr(int... many) { arr = many; }
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}
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