72 lines
2.3 KiB
Java
72 lines
2.3 KiB
Java
/*
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* Copyright (c) 2015, 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 8131969
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* @summary assert in register allocation code when vector Phi for a loop is
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* processed because code assumes all inputs already processed
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*
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* @run main/othervm -Xbatch compiler.regalloc.TestVectorRegAlloc
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*/
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package compiler.regalloc;
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public class TestVectorRegAlloc {
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static int test_helper_i;
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static boolean test_helper() {
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test_helper_i++;
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return (test_helper_i & 7) != 0;
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}
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static void test(double[] src, double[] dst, boolean flag) {
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double j = 0.0;
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while(test_helper()) {
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for (int i = 0; i < src.length; i++) {
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dst[i] = src[i] + j;
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}
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// Loop will be unswitched and ReplicateD of zero will be
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// split through the Phi of outer loop
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for (int i = 0; i < src.length; i++) {
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double k;
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if (flag) {
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k = j;
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} else {
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k = 0;
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}
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dst[i] = src[i] + k;
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}
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j++;
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}
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}
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static public void main(String[] args) {
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double[] src = new double[10];
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double[] dst = new double[10];
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for (int i = 0; i < 20000; i++) {
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test(src, dst, (i % 2) == 0);
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}
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}
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}
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