8136421: JEP 243: Java-Level JVM Compiler Interface

Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett

hotspot/test/compiler/jvmci/compilerToVM/HasCompiledCodeForOSRTest.java

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2015, 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 8136421
+ * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
+ * @library /testlibrary /../../test/lib /
+ * @compile ../common/CompilerToVMHelper.java
+ * @build sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ *                              sun.hotspot.WhiteBox$WhiteBoxPermission
+ *                              jdk.vm.ci.hotspot.CompilerToVMHelper
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
+ *      -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
+ *      -XX:-BackgroundCompilation
+ *      compiler.jvmci.compilerToVM.HasCompiledCodeForOSRTest
+ */
+
+package compiler.jvmci.compilerToVM;
+
+import compiler.jvmci.common.CTVMUtilities;
+
+import java.lang.reflect.Executable;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import compiler.testlibrary.CompilerUtils;
+import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
+import jdk.vm.ci.hotspot.CompilerToVMHelper;
+import jdk.test.lib.Asserts;
+import sun.hotspot.WhiteBox;
+import sun.hotspot.code.NMethod;
+
+public class HasCompiledCodeForOSRTest {
+    public static void main(String[] args) {
+        List<CompileCodeTestCase>testCases = createTestCases();
+        testCases.forEach(HasCompiledCodeForOSRTest::runSanityTest);
+    }
+
+    public static List<CompileCodeTestCase> createTestCases() {
+        List<CompileCodeTestCase> testCases = new ArrayList<>();
+
+        try {
+            Class<?> aClass = DummyClass.class;
+            testCases.add(new CompileCodeTestCase(
+                    aClass.getMethod("withLoop"), 17));
+        } catch (NoSuchMethodException e) {
+            throw new Error("TEST BUG : " + e.getMessage(), e);
+        }
+        return testCases;
+    }
+
+    private static void runSanityTest(CompileCodeTestCase testCase) {
+        System.out.println(testCase);
+        Executable aMethod = testCase.executable;
+        HotSpotResolvedJavaMethodImpl method = CTVMUtilities
+                .getResolvedMethod(aMethod);
+        testCase.deoptimize();
+        int[] levels = CompilerUtils.getAvailableCompilationLevels();
+        // not compiled
+        for (int level : levels) {
+            boolean isCompiled = CompilerToVMHelper.hasCompiledCodeForOSR(
+                    method, testCase.bci, level);
+            Asserts.assertFalse(isCompiled, String.format(
+                    "%s : unexpected return value for non-compiled method at "
+                            + "level %d", testCase, level));
+        }
+        NMethod nm = testCase.compile();
+        if (nm == null) {
+            throw new Error(String.format(
+                    "TEST BUG : %s : cannot compile method", testCase));
+        }
+
+        boolean isCompiled;
+        int level = nm.comp_level;
+        for (int i : levels) {
+            isCompiled = CompilerToVMHelper.hasCompiledCodeForOSR(
+                    method, testCase.bci, i);
+            Asserts.assertEQ(isCompiled, level == i, String.format(
+                    "%s : unexpected return value for compiled method at "
+                            + "level %d", testCase, i));
+        }
+
+        for (int i : new int[] {-1, +1}) {
+            int bci = testCase.bci + i;
+            isCompiled = CompilerToVMHelper.hasCompiledCodeForOSR(
+                    method, bci, level);
+            Asserts.assertFalse(isCompiled, String.format(
+                    "%s : unexpected return value for compiled method at "
+                            + "level %d with bci = %d ",
+                    testCase, level, bci));
+        }
+    }
+}