author | cgo |
Wed, 27 Nov 2019 10:13:41 +0100 | |
changeset 59306 | bdf999e08a3a |
parent 58816 | 77148b8bb7a1 |
permissions | -rw-r--r-- |
58816 | 1 |
/* |
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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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/* |
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* @test |
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* @bug 8231565 |
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* @summary Node estimate for loop rotate is not correct/sufficient: |
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* assert(delta <= 2 * required) failed: Bad node estimate ... |
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* |
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59306
bdf999e08a3a
8234807: [TESTBUG] LoopRotateBadNodeBudget fails for client VMs due to Unrecognized VM option PartialPeelNewPhiDelta
cgo
parents:
58816
diff
changeset
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* @requires vm.compiler2.enabled & !vm.graal.enabled |
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* |
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* @run main/othervm -XX:PartialPeelNewPhiDelta=5 LoopRotateBadNodeBudget |
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* @run main/othervm -Xbatch -XX:PartialPeelNewPhiDelta=5 LoopRotateBadNodeBudget |
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* |
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* @run main/othervm LoopRotateBadNodeBudget |
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* @run main/othervm -Xbatch LoopRotateBadNodeBudget |
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* |
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* NOTE: Test-case seldom manifesting the problem on fast machines. |
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*/ |
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public class LoopRotateBadNodeBudget { |
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int h; |
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float j(int a, int b) { |
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double d = 0.19881; |
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int c, e[] = new int[9]; |
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c = 1; |
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while (++c < 12) |
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switch ((c % 7 * 5) + 122) { |
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case 156: |
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case 46128: |
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case 135: |
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case 148: |
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case 127: |
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break; |
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default: |
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} |
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while ((d += 2) < 62) |
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; |
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long k = l(e); |
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return k; |
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} |
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long l(int[] a) { |
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long m = 0; |
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for (int i = 0; i < a.length; i++) |
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m = a[i]; |
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return m; |
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} |
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void f(String[] g) { |
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int i = 2; |
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for (; i < 20000; ++i) |
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j(3, h); |
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} |
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public static void main(String[] o) { |
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try { |
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LoopRotateBadNodeBudget n = new LoopRotateBadNodeBudget(); |
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n.f(o); |
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} catch (Exception ex) { |
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} |
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} |
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} |