Mercurial > hg > truffle
view test/compiler/types/TestSpeculationFailedHigherEqual.java @ 20907:06b0a2fb20a1
Truffle/Tools: the coverage tool will now ignore counts for any sources holding the tag CoverageTracker.Tags.NO_COVERAGE.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Mon, 13 Apr 2015 11:05:58 -0700 |
parents | 45b0159f30f2 |
children | 92aa6797d639 |
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/* * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8027422 * @summary type methods shouldn't always operate on speculative part * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:TypeProfileLevel=222 -XX:+UseTypeSpeculation -XX:-BackgroundCompilation TestSpeculationFailedHigherEqual * */ public class TestSpeculationFailedHigherEqual { static class A { void m() {} int i; } static class C extends A { } static C c; static A m1(A a, boolean cond) { // speculative type for a is C not null if (cond ) { a = c; } // speculative type for a is C (may be null) int i = a.i; return a; } static public void main(String[] args) { C c = new C(); TestSpeculationFailedHigherEqual.c = c; for (int i = 0; i < 20000; i++) { m1(c, i%2 == 0); } System.out.println("TEST PASSED"); } }