--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/vm/compiler/jbe/dead/dead12/dead12.java Fri Jun 01 15:48:55 2018 -0700
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2002, 2018, 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
+ *
+ * @summary converted from VM Testbase runtime/jbe/dead/dead12.
+ * VM Testbase keywords: [quick, runtime]
+ *
+ * @library /vmTestbase
+ * /test/lib
+ * @run driver jdk.test.lib.FileInstaller . .
+ * @run main/othervm vm.compiler.jbe.dead.dead12.dead12
+ */
+
+package vm.compiler.jbe.dead.dead12;
+
+// dead12.java
+
+/* -- Test the elimination of dead assignments to a local array within IF statement
+ Example:
+
+ boolean bol = true;
+ void foo()
+ {
+ int arr[] = new int[SIZE];
+ if (bol) arr[1] = 3;
+ }
+
+In the example below, most of the assignments to the local array a[] are dead and can be eliminated.
+ */
+
+public class dead12 {
+ int SIZE = 30;
+ boolean bol = true;
+
+ public static void main(String args[]) {
+ dead12 dce = new dead12();
+
+ System.out.println("f()="+dce.f()+"; fopt()="+dce.fopt());
+ if (dce.f() == dce.fopt()) {
+ System.out.println("Test dead12 Passed.");
+ } else {
+ throw new Error("Test dead12 Failed: f()=" + dce.f() + " != fopt()=" + dce.fopt());
+ }
+ }
+
+ int f() {
+
+ int a[] = new int[SIZE];
+
+ if (bol)
+ a[0] = 0;
+ if (bol)
+ a[1] = 1;
+ if (bol)
+ a[2] = 2;
+ if (bol)
+ a[3] = 3;
+ if (bol)
+ a[4] = 4;
+ if (bol)
+ a[5] = 5;
+ if (bol)
+ a[6] = 6;
+ if (bol)
+ a[7] = 7;
+ if (bol)
+ a[8] = 8;
+ if (bol)
+ a[9] = 9;
+ if (bol)
+ a[10] = 10;
+ if (bol)
+ a[11] = 11;
+ if (bol)
+ a[12] = 12;
+ if (bol)
+ a[13] = 13;
+ if (bol)
+ a[14] = 14;
+ if (bol)
+ a[15] = 15;
+ if (bol)
+ a[16] = 16;
+ if (bol)
+ a[17] = 17;
+ if (bol)
+ a[18] = 18;
+ if (bol)
+ a[19] = 19;
+ if (bol)
+ a[20] = 20;
+ if (bol)
+ a[21] = 21;
+ if (bol)
+ a[22] = 22;
+ if (bol)
+ a[23] = 23;
+ if (bol)
+ a[24] = 24;
+ if (bol)
+ a[25] = 25;
+ if (bol)
+ a[26] = 26;
+ if (bol)
+ a[27] = 27;
+ if (bol)
+ a[28] = 28;
+ if (bol)
+ a[29] = 29;
+
+ return a[12];
+ }
+
+ // Code fragment after dead code elimination
+ int fopt() {
+ int a[] = new int[SIZE];
+
+ a[12] = 12;
+ return a[12] = 12;
+ }
+}