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Wang HuangHe Xuejin
authored and
Nils Eliasson
committed
8260339: JVM crashes when executing PhaseIdealLoop::match_fill_loop
Co-authored-by: He Xuejin <hexuejin2@huawei.com> Reviewed-by: neliasso, kvn, iignatyev
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src/hotspot/share/runtime/stubRoutines.cpp

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@@ -524,6 +524,7 @@ address StubRoutines::select_fill_function(BasicType t, bool aligned, const char
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case T_NARROWOOP:
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case T_NARROWKLASS:
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case T_ADDRESS:
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case T_VOID:
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// Currently unsupported
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return NULL;
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/*
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* Copyright (c) 2021, Huawei Technologies Co. Ltd. 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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package compiler.vectorapi;
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import jdk.incubator.vector.IntVector;
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import jdk.incubator.vector.LongVector;
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import jdk.incubator.vector.VectorSpecies;
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/*
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* @test
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* @bug 8260339
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* @summary StoreVectorNode is not considered with -XX:+OptimizeFill
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* @modules jdk.incubator.vector
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*
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+OptimizeFill compiler.vectorapi.TestLoopStoreVector
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*/
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public class TestLoopStoreVector {
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static final VectorSpecies<Integer> SPECIESi = IntVector.SPECIES_PREFERRED;
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static final VectorSpecies<Long> SPECIESl = LongVector.SPECIES_PREFERRED;
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static final int INVOC_COUNT = 5000;
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static final int size = 64;
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static int[] ai = {20, 21, 02, 14, 83, 119, 101, 101, 116, 121, 44, 32,
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73, 32, 76, 79, 86, 69, 32, 89, 79, 85, 32, 102, 111,
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114, 101, 118, 101, 114, 33, 32, 32, 32, 45, 45, 32,
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32, 32, 66, 121, 32, 87, 97, 110, 103, 72, 117, 97,
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110, 103,46, 76, 105, 102, 101, 32, 105, 115, 32, 116,
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104, 101, 32};
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static long[] al = {102, 108, 111, 119, 101, 114, 32, 102, 111, 114, 32,
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119, 104, 105, 99, 104, 32, 108, 111, 118, 101, 32,
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105, 115, 32, 116, 104, 101, 32, 104, 111, 110, 101,
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121, 46, 32, 87, 101, 32, 119, 105, 108, 108, 32, 115,
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116, 105, 99, 107, 32, 116, 111, 103, 101, 116, 104,
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101, 114, 32, 33, 33, 33, 33, 32};
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public static void testVectorCastL2I(long[] input, int[] output, VectorSpecies<Long> speciesl, VectorSpecies<Integer> speciesi) {
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LongVector av = LongVector.fromArray(speciesl, input, 0);
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IntVector bv = (IntVector) av.castShape(speciesi, 0);
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bv.intoArray(output, 0);
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}
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public static int test0() {
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for (int i = 0; i < 1000; i++) {
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testVectorCastL2I(al, ai, SPECIESl, SPECIESi);
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}
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return 0;
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}
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public static void main(String[] args) {
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for (int i = 0; i < INVOC_COUNT; i++) {
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test0();
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}
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for (int i = 0; i < 64; i++) {
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System.out.print(ai[i] + " ");
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}
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System.out.println("");
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}
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}

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