1 /*
   2  * Copyright (c) 2016, 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 
  24 /**
  25  * @test
  26  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
  27  * @compile CodeInstallationTest.java DebugInfoTest.java TestAssembler.java amd64/AMD64TestAssembler.java sparc/SPARCTestAssembler.java
  28  * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI compiler.jvmci.code.InterpreterFrameSizeTest
  29  */
  30 
  31 package compiler.jvmci.code;
  32 
  33 import java.lang.reflect.Method;
  34 
  35 import jdk.vm.ci.code.BytecodeFrame;
  36 import jdk.vm.ci.meta.JavaKind;
  37 import jdk.vm.ci.meta.JavaValue;
  38 import jdk.vm.ci.meta.ResolvedJavaMethod;
  39 
  40 import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider;
  41 
  42 import org.junit.Assert;
  43 import org.junit.Test;
  44 
  45 public class InterpreterFrameSizeTest extends CodeInstallationTest {
  46 
  47     HotSpotCodeCacheProvider hotspotCodeCache() {
  48         return (HotSpotCodeCacheProvider) codeCache;
  49     }
  50 
  51     @Test
  52     public void testNull() {
  53         try {
  54             hotspotCodeCache().interpreterFrameSize(null);
  55         } catch (NullPointerException npe) {
  56             System.out.println("threw NPE as expected");
  57             return;
  58         }
  59         Assert.fail("expected NullPointerException");
  60     }
  61 
  62     @Test
  63     public void test() {
  64         ResolvedJavaMethod resolvedMethod = metaAccess.lookupJavaMethod(getMethod("testNull"));
  65 
  66         int bci = 0;
  67         int numLocals = resolvedMethod.getMaxLocals();
  68         int numStack = 0;
  69         JavaValue[] values = new JavaValue[numLocals];
  70         JavaKind[] slotKinds = new JavaKind[numLocals];
  71         BytecodeFrame frame = new BytecodeFrame(null, resolvedMethod, bci, false, false, values, slotKinds, numLocals, numStack, 0);
  72         int size = hotspotCodeCache().interpreterFrameSize(frame);
  73         System.out.println("Frame size is " + size + " bytes");
  74         if (size <= 0) {
  75             Assert.fail("expected non-zero result");
  76         }
  77     }
  78 }