1 /*
   2  * Copyright (c) 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 
  24 package compiler.jvmci.errors;
  25 
  26 import java.lang.reflect.Method;
  27 
  28 import jdk.vm.ci.code.Architecture;
  29 import jdk.vm.ci.code.CodeCacheProvider;
  30 import jdk.vm.ci.code.CompilationResult;
  31 import jdk.vm.ci.code.Register;
  32 import jdk.vm.ci.meta.MetaAccessProvider;
  33 import jdk.vm.ci.meta.PlatformKind;
  34 import jdk.vm.ci.meta.ResolvedJavaMethod;
  35 import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
  36 import jdk.vm.ci.runtime.JVMCI;
  37 import jdk.vm.ci.runtime.JVMCIBackend;
  38 
  39 import org.junit.Assert;
  40 
  41 public class CodeInstallerTest {
  42 
  43     protected final Architecture arch;
  44     protected final CodeCacheProvider codeCache;
  45     protected final MetaAccessProvider metaAccess;
  46     protected final HotSpotConstantReflectionProvider constantReflection;
  47 
  48     protected final ResolvedJavaMethod dummyMethod;
  49 
  50     public static void dummyMethod() {
  51     }
  52 
  53     protected CodeInstallerTest() {
  54         JVMCIBackend backend = JVMCI.getRuntime().getHostJVMCIBackend();
  55         metaAccess = backend.getMetaAccess();
  56         codeCache = backend.getCodeCache();
  57         constantReflection = (HotSpotConstantReflectionProvider) backend.getConstantReflection();
  58         arch = codeCache.getTarget().arch;
  59 
  60         Method method = null;
  61         try {
  62             method = CodeInstallerTest.class.getMethod("dummyMethod");
  63         } catch (NoSuchMethodException e) {
  64             Assert.fail();
  65         }
  66 
  67         dummyMethod = metaAccess.lookupJavaMethod(method);
  68     }
  69 
  70     protected void installCode(CompilationResult result) {
  71         codeCache.addCode(dummyMethod, result, null, null);
  72     }
  73 
  74     protected CompilationResult createEmptyCompilationResult() {
  75         CompilationResult ret = new CompilationResult();
  76         ret.setTotalFrameSize(0);
  77         return ret;
  78     }
  79 
  80     protected Register getRegister(PlatformKind kind, int index) {
  81         Register[] allRegs = arch.getAvailableValueRegisters();
  82         for (int i = 0; i < allRegs.length; i++) {
  83             if (arch.canStoreValue(allRegs[i].getRegisterCategory(), kind)) {
  84                 if (index-- == 0) {
  85                     return allRegs[i];
  86                 }
  87             }
  88         }
  89         return null;
  90     }
  91 }