diff test/compiler/whitebox/IsMethodCompilableTest.java @ 8051:12e01444ca2d

8006683: Add WhiteBox API to testing of compiler Reviewed-by: kvn, vlivanov
author iignatyev
date Wed, 13 Feb 2013 08:29:04 -0800
parents
children 1b0dc9f87e75
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/whitebox/IsMethodCompilableTest.java	Wed Feb 13 08:29:04 2013 -0800
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2013, 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 IsMethodCompilableTest
+ * @bug 8007270
+ * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI CompilerWhiteBoxTest.java
+ * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI IsMethodCompilableTest.java
+ * @run main/othervm/timeout=600 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest
+ * @author igor.ignatyev@oracle.com
+ */
+public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
+    protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
+
+    static {
+        long tmp = Long.parseLong(
+                getVMOption("PerMethodRecompilationCutoff", "400"));
+        if (tmp == -1) {
+            PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
+        } else {
+            PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        new IsMethodCompilableTest().runTest();
+    }
+
+    protected void test() throws Exception {
+        if (!WHITE_BOX.isMethodCompilable(METHOD)) {
+            throw new RuntimeException(METHOD + " must be compilable");
+        }
+        System.out.println("PerMethodRecompilationCutoff = "
+                + PER_METHOD_RECOMPILATION_CUTOFF);
+        if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
+            System.err.println(
+                    "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
+            return;
+        }
+        // to prevent inlining #method into #compile()
+        WHITE_BOX.setDontInlineMethod(METHOD, true);
+        boolean madeNotCompilable = false;
+
+        for (long i = 0; i < PER_METHOD_RECOMPILATION_CUTOFF; ++i) {
+            compile();
+            waitBackgroundCompilation(METHOD);
+            WHITE_BOX.deoptimizeMethod(METHOD);
+            if (!WHITE_BOX.isMethodCompilable(METHOD)) {
+                madeNotCompilable = true;
+                break;
+            }
+        }
+        if (!madeNotCompilable) {
+            throw new RuntimeException(METHOD + " is still compilable after "
+                    + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
+        }
+        compile();
+        if (WHITE_BOX.isMethodCompiled(METHOD)) {
+            printInfo(METHOD);
+            throw new RuntimeException(
+                    METHOD + " is not compilable but compiled");
+        }
+    }
+}