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8305524: AArch64: Fix arraycopy issue on SVE caused by matching rule vmask_gen_sub

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Reviewed-by: aph, xgong
This commit is contained in:
Pengfei Li 2023-04-12 03:15:39 +00:00
parent 82e8b0332b
commit b9bdbe9ab3
4 changed files with 62 additions and 10 deletions
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52
test/hotspot/jtreg/compiler/arraycopy/TestArrayCopyMaskedWithSub.java Normal file
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/*
* Copyright (c) 2023, Arm Limited. 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 8305524
* @run main/othervm -Xbatch compiler.arraycopy.TestArrayCopyMaskedWithSub
*/
package compiler.arraycopy;
public class TestArrayCopyMaskedWithSub {
private static char[] src = {'A', 'A', 'A', 'A', 'A'};
private static char[] dst = {'B', 'B', 'B', 'B', 'B'};
private static void copy(int nlen) {
System.arraycopy(src, 0, dst, 0, -nlen);
}
public static void main(String[] args) {
for (int i = 0; i < 25000; i++) {
copy(0);
}
copy(-5);
for (char c : dst) {
if (c != 'A') {
throw new RuntimeException("Wrong value!");
}
}
System.out.println("PASS");
}
}