/* * Copyright (c) 2015, 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 8078093 8055894 * @summary Exponential performance regression Java 8 compiler compared to Java 7 compiler * @compile T8055984.java */ class T8055984 { static class C { U fu; C() { } C(C other) { this.fu = other.fu; } C(U fu) { this.fu = fu; } } static C m(C src) { return new C(src); } static void test() { C c2 = m(new C<>(m(new C<>() )) ); C c3 = m(new C<>(m(new C<>(m(new C<>() )) )) ); C c4 = m(new C<>(m(new C<>(m(new C<>(m(new C<>() )) )) )) ); C c5 = m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>() )) )) )) )) ); C c6 = m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>() )) )) )) )) )) ); C c7 = m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>() )) )) )) )) )) )) ); C c8 = m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>() )) )) )) )) )) )) )) ); C c9 = m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>() )) )) )) )) )) )) )) )) ); C c10 = m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>(m(new C<>()))))))))))))))))))); } }