Add basic sanity test for stress IGVN options

test/hotspot/jtreg/compiler/arguments/TestStressIGVNOptions.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2020, 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 8252219
+ * @summary Tests that different combinations of the options -XX:+StressIGVN,
+ *          -XX:StressSeed=N, and -XX:+GenerateStressSeed are accepted.
+ * @run main/othervm -XX:+StressIGVN
+ *      compiler.arguments.TestStressIGVNOptions
+ * @run main/othervm -XX:+StressIGVN -XX:StressSeed=42
+ *      compiler.arguments.TestStressIGVNOptions
+ * @run main/othervm -XX:+StressIGVN -XX:+GenerateStressSeed
+ *      compiler.arguments.TestStressIGVNOptions
+ */
+
+package compiler.arguments;
+
+public class TestStressIGVNOptions {
+
+    static public void main(String[] args) {
+        System.out.println("Passed");
+    }
+}
+

test/hotspot/jtreg/compiler/debug/TestGenerateStressSeed.java

@@ -32,8 +32,8 @@
  * @test
  * @bug 8252219
  * @requires vm.compiler2.enabled
- * @summary Tests that -XX:+GenerateStressSeed is accepted, and that, in
- *          combination with -XX:+StressIGVN, C2 generates and logs a seed.
+ * @summary Tests that -XX:+GenerateStressSeed, in combination with
+ *          -XX:+StressIGVN, generates and logs a seed.
  * @library /test/lib /
  * @run driver compiler.debug.TestGenerateStressSeed
  */

test/hotspot/jtreg/compiler/debug/TestStressIGVN.java

@@ -31,10 +31,9 @@
  * @test
  * @bug 8252219
  * @requires vm.compiler2.enabled
- * @summary Tests that:
- *          1) the options -XX:+StressIGVN and -XX:StressSeed=N are accepted,
- *          2) compilations with the same seed yield the same IGVN trace, and
- *          3) compilations with different seeds yield different IGVN traces.
+ * @summary Tests that compilations with the same seed yield the same IGVN
+ *          trace, and compilations with different seeds yield different IGVN
+ *          traces.
  * @library /test/lib /
  * @run driver compiler.debug.TestStressIGVN
  */