d7b122ed69
Fix selection of first and last memory state in SuperWord::co_locate_pack Reviewed-by: thartmann, kvn
71 lines
2.5 KiB
Java
71 lines
2.5 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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* @requires vm.compiler2.enabled
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* @bug 8238438
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* @summary Tests to select the memory state of the last load in a load pack in SuperWord::co_locate_pack.
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*
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* @run main/othervm -Xbatch -XX:CompileCommand=compileonly,compiler.loopopts.superword.CoLocatePackMemoryState::test
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* -XX:LoopMaxUnroll=16 compiler.loopopts.superword.CoLocatePackMemoryState
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*/
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package compiler.loopopts.superword;
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public class CoLocatePackMemoryState {
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public static final int N = 64;
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public static byte byFld;
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public static int iArr[] = new int[N+1];
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public static void test() {
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// Needs to pick the memory state of the last load for the iArr[i] load pack in SuperWord::co_locate_pack
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// since it is dependent on the iArr[i+1] stores.
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for (int i = 0; i < N; ++i) {
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iArr[i+1] = i;
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iArr[i] -= 15;
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byFld += 35;
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}
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}
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public static void main(String[] strArr) {
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for (int i = 0; i < 2000; i++) {
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for (int j = 0; j < N; j++) {
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iArr[j] = 0;
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}
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test();
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if (iArr[0] != -15) {
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throw new RuntimeException("iArr[0] must be -15 but was " + iArr[0]);
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}
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for (int j = 1; j < N; j++) {
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if (iArr[j] != (j-16)) {
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throw new RuntimeException("iArr[" + j + "] must be " + (j-16) + " but was " + iArr[j]);
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}
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}
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}
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}
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}
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