59 lines
2.0 KiB
Java
59 lines
2.0 KiB
Java
/*
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* Copyright Amazon.com Inc. 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 8313402
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* @summary C1: Incorrect LoadIndexed value numbering
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* @requires vm.compiler1.enabled
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* @library /compiler/patches /test/lib
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* @build java.base/java.lang.Helper
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* @run main/othervm -Xbatch -XX:CompileThreshold=100
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* -XX:TieredStopAtLevel=1
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* compiler.c1.TestLoadIndexedMismatch
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*/
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package compiler.c1;
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public class TestLoadIndexedMismatch {
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static final byte[] ARR = {42, 42};
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static final char EXPECTED_CHAR = (char)(42*256 + 42);
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public static char work() {
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// LoadIndexed (B)
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byte b = ARR[0];
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// StringUTF16.getChar intrinsic, LoadIndexed (C)
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char c = Helper.getChar(ARR, 0);
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return c;
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}
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public static void main(String[] args) {
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for (int i = 0; i < 10_000; i++) {
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char c = work();
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if (c != EXPECTED_CHAR) {
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throw new IllegalStateException("Read: " + (int)c + ", expected: " + (int)EXPECTED_CHAR);
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}
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}
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}
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}
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