1 /*
   2  * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.api.directives.test;
  24 
  25 import jdk.vm.ci.code.InstalledCode;
  26 import jdk.vm.ci.meta.ResolvedJavaMethod;
  27 
  28 import org.junit.Assert;
  29 import org.junit.Test;
  30 
  31 import org.graalvm.compiler.api.directives.GraalDirectives;
  32 import org.graalvm.compiler.core.test.GraalCompilerTest;
  33 
  34 public class DeoptimizeDirectiveTest extends GraalCompilerTest {
  35 
  36     public static boolean inCompiledCode() {
  37         return GraalDirectives.inCompiledCode();
  38     }
  39 
  40     @Test
  41     public void testInCompiledCode() {
  42         ResolvedJavaMethod method = getResolvedJavaMethod("inCompiledCode");
  43 
  44         Result interpreted = executeExpected(method, null);
  45         assertEquals(new Result(false, null), interpreted);
  46 
  47         Result compiled = executeActual(method, null);
  48         assertEquals(new Result(true, null), compiled);
  49     }
  50 
  51     public static boolean deoptimizeSnippet() {
  52         GraalDirectives.deoptimize();
  53         return GraalDirectives.inCompiledCode(); // should always return false
  54     }
  55 
  56     public static boolean deoptimizeAndInvalidateSnippet() {
  57         GraalDirectives.deoptimizeAndInvalidate();
  58         return GraalDirectives.inCompiledCode(); // should always return false
  59     }
  60 
  61     @Test
  62     public void testDeoptimize() {
  63         test("deoptimizeSnippet");
  64     }
  65 
  66     private boolean testDeoptimizeCheckValid(ResolvedJavaMethod method) {
  67         Result expected = executeExpected(method, null);
  68 
  69         InstalledCode code = getCode(method);
  70         Result actual;
  71         try {
  72             actual = new Result(code.executeVarargs(), null);
  73         } catch (Throwable e) {
  74             actual = new Result(null, e);
  75         }
  76 
  77         assertEquals(expected, actual);
  78         return code.isValid();
  79     }
  80 
  81     @Test
  82     public void testDeoptimizeAndInvalidate() {
  83         ResolvedJavaMethod method = getResolvedJavaMethod("deoptimizeAndInvalidateSnippet");
  84         boolean valid = testDeoptimizeCheckValid(method);
  85         Assert.assertFalse("code should be invalidated", valid);
  86     }
  87 
  88     @Test
  89     public void testDeoptimizeDontInvalidate() {
  90         ResolvedJavaMethod method = getResolvedJavaMethod("deoptimizeSnippet");
  91         boolean valid = testDeoptimizeCheckValid(method);
  92         Assert.assertTrue("code should still be valid", valid);
  93     }
  94 }