/* * Copyright (c) 2017, 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. */ package org.graalvm.compiler.hotspot; import jdk.vm.ci.hotspot.HotSpotVMConfigStore; public class AOTGraalHotSpotVMConfig extends GraalHotSpotVMConfig { private final CompressEncoding aotOopEncoding; private final CompressEncoding aotKlassEncoding; public AOTGraalHotSpotVMConfig(HotSpotVMConfigStore store) { super(store); // In AOT, force the shift to be always equal to alignment therefore avoiding zero-shift. CompressEncoding vmOopEncoding = super.getOopEncoding(); aotOopEncoding = new CompressEncoding(vmOopEncoding.base, vmOopEncoding.alignment, vmOopEncoding.alignment); CompressEncoding vmKlassEncoding = super.getKlassEncoding(); aotKlassEncoding = new CompressEncoding(vmKlassEncoding.base, vmKlassEncoding.alignment, vmKlassEncoding.alignment); assert check(); } @Override public CompressEncoding getOopEncoding() { return aotOopEncoding; } @Override public CompressEncoding getKlassEncoding() { return aotKlassEncoding; } }