--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/types/TestSpeculationFailedHigherEqual.java Fri Jan 24 09:31:53 2014 +0100
@@ -0,0 +1,63 @@
+/*
+ * 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:+UnlockExperimentalVMOptions -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");
+ }
+}