changeset 13781:7adf2778dc96

test for ShortCiruitNode/guard handling
author Lukas Stadler <lukas.stadler@jku.at>
date Tue, 28 Jan 2014 14:39:52 +0100
parents d6ac7ebead35
children c3d0aefceff7
files graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/ShortCircuitNodeTest.java
diffstat 1 files changed, 65 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/ShortCircuitNodeTest.java	Tue Jan 28 14:39:52 2014 +0100
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2011, 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.
+ */
+package com.oracle.graal.compiler.test;
+
+import org.junit.*;
+
+import com.oracle.graal.compiler.test.ea.EATestBase.TestClassInt;
+
+public class ShortCircuitNodeTest extends GraalCompilerTest {
+
+    @Test
+    public void test1() {
+        // only executeActual, to avoid creating profiling information
+        executeActual(getMethod("test1Snippet"), 1, 2);
+    }
+
+    public static final TestClassInt field = null;
+    public static TestClassInt field2 = null;
+
+    @SuppressWarnings("unused")
+    public static void test1Snippet(int a, int b) {
+        /*
+         * if a ShortCircuitOrNode is created for the check inside test2, then faulty handling of
+         * guards can create a cycle in the graph.
+         */
+        int v;
+        if (a == 1) {
+            if (b != 1) {
+                int i = field.x;
+            }
+            field2 = null;
+            v = 0;
+        } else {
+            v = 1;
+        }
+
+        if (test2(v, b)) {
+            int i = field.x;
+        }
+    }
+
+    public static boolean test2(int a, int b) {
+        return a != 0 || b != 1;
+    }
+}