77 lines
2.3 KiB
Java
77 lines
2.3 KiB
Java
/*
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* Copyright (c) 2019, 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 8229499
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* @summary Node estimate for loop unrolling is not correct/sufficient:
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* assert(delta <= 2 * required) failed: Bad node estimate ...
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*
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* @requires !vm.graal.enabled
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*
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* @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation
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* LoopUnrollBadNodeBudget
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*
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*/
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public class LoopUnrollBadNodeBudget {
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int a;
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long b;
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int c;
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int d(long e, short f, int g) {
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int h, j = 2, k, l[][] = new int[a][];
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for (h = 8; h < 58; ++h)
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for (k = 1; 7 > k; ++k)
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switch (h % 9 * 5 + 43) {
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case 70:
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case 65:
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case 86:
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case 81:
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case 62:
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case 69:
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case 74:
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g = j;
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}
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long m = u(l);
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return (int)m;
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}
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void n(int p, int o) { d(b, (short)0, p); }
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void r(String[] q) {
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int i = 4;
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n(i, c);
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}
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long u(int[][] a) {
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long sum = 0;
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return sum;
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}
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public static void main(String[] t) {
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try {
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LoopUnrollBadNodeBudget s = new LoopUnrollBadNodeBudget();
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for (int i = 5000; i > 0; i--)
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s.r(t);
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} catch (Exception ex) {
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}
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}
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}
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