05459df0c7
Use the compilation-local seed in 'StressLCM' and 'StressGCM' rather than the global one. As a consequence, these options use by default a fresh seed in every compilation, unless 'StressSeed=N' is specified, in which case they behave deterministically. Annotate tests that use 'StressLCM' and 'StressGCM' with the 'stress' and 'randomness' keys to reflect this change in default behavior. Reviewed-by: kvn, thartmann
90 lines
2.5 KiB
Java
90 lines
2.5 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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* @key stress randomness
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* @bug 8069191
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* @summary predicate moved out of loops and CastPP removal causes dependency to be lost
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*
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* @run main/othervm -Xcomp -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+StressGCM
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* -XX:CompileCommand=compileonly,compiler.loopopts.TestPredicateLostDependency::m1
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* compiler.loopopts.TestPredicateLostDependency
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*
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*/
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package compiler.loopopts;
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public class TestPredicateLostDependency {
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static class A {
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int i;
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}
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static class B extends A {
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}
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static boolean crash = false;
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static boolean m2() {
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return crash;
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}
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static int m3(float[] arr) {
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return 0;
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}
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static float m1(A aa) {
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float res = 0;
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float[] arr = new float[10];
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for (int i = 0; i < 10; i++) {
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if (m2()) {
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arr = null;
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}
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m3(arr);
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int j = arr.length;
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int k = 0;
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for (k = 9; k < j; k++) {
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}
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if (k == 10) {
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if (aa instanceof B) {
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}
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}
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res += arr[0];
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res += arr[1];
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}
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return res;
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}
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static public void main(String args[]) {
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A a = new A();
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B b = new B();
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for (int i = 0; i < 20000; i++) {
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m1(a);
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}
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crash = true;
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try {
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m1(a);
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} catch (NullPointerException npe) {}
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}
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}
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