34b08ed2a5
Use _src_type/_dest_type as address types for the loads and stores. Reviewed-by: vlivanov, roland
87 lines
3.0 KiB
Java
87 lines
3.0 KiB
Java
/*
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* Copyright (c) 2019, 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 8233164
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* @summary Test correct wiring of load/store memory for arraycopy ideal transformation.
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* @run main/othervm -XX:CompileCommand=dontinline,compiler.arraycopy.TestArrayCopyMemoryChain::test* -Xbatch
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* compiler.arraycopy.TestArrayCopyMemoryChain
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*/
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package compiler.arraycopy;
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public class TestArrayCopyMemoryChain {
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private String mySweetEscape1 = null;
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private String getString(int i) {
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return "A" + i + "B";
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}
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// Original test depending on Indify String Concat
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public void test1(int i) {
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mySweetEscape1 = getString(i) + "CD";
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}
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private byte[] mySweetEscape2;
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class Wrapper {
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public final byte[] array;
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public Wrapper(byte[] array) {
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this.array = array;
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}
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}
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// Simplified test independent of Strings
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public void test2(int idx, int size) {
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// Create destination array with unknown size and let it escape.
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byte[] dst = new byte[size];
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mySweetEscape2 = dst;
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// Create constant src1 array.
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byte[] src1 = {43, 44};
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// Wrap src2 into an Object such that it's only available after
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// Escape Analys determined that the Object is non-escaping.
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byte[] array = {42};
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Wrapper wrapper = new Wrapper(array);
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byte[] src2 = wrapper.array;
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// Copy src1 and scr2 into destination array.
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System.arraycopy(src1, 0, dst, idx, src1.length);
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System.arraycopy(src2, 0, dst, 0, src2.length);
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}
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public static void main(String[] args) {
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TestArrayCopyMemoryChain t = new TestArrayCopyMemoryChain();
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for (int i = 0; i < 100_000; ++i) {
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t.test1(0);
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if (!t.mySweetEscape1.equals("A0BCD")) {
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throw new RuntimeException("Test1 failed");
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}
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t.test2(1, 3);
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if (t.mySweetEscape2[0] != 42 || t.mySweetEscape2[1] != 43 || t.mySweetEscape2[2] != 44) {
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throw new RuntimeException("Test2 failed");
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}
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}
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}
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}
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