Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/HotSpotSnippetUtils.java @ 6368:43e274f43a9a
made NewObjectSnippets optionally load the initial mark word when initializing an object - this is disabled until the bug triggered in lusearch by this change is fixed
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 12 Sep 2012 23:50:52 +0200 |
parents | 07da50ea3275 |
children | 1d7c73b5d787 |
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/* * Copyright (c) 2012, 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 com.oracle.graal.hotspot.snippets; import static com.oracle.graal.nodes.extended.UnsafeLoadNode.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.code.Register.RegisterFlag; import com.oracle.graal.api.meta.*; import com.oracle.graal.hotspot.*; import com.oracle.graal.hotspot.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.snippets.Snippet.Fold; import com.oracle.graal.snippets.*; import com.oracle.max.asm.target.amd64.*; //JaCoCo Exclude /** * A collection of methods used in HotSpot snippets. */ public class HotSpotSnippetUtils { @Fold static boolean verifyOops() { return HotSpotGraalRuntime.getInstance().getConfig().verifyOops; } @Fold static int threadTlabTopOffset() { return HotSpotGraalRuntime.getInstance().getConfig().threadTlabTopOffset; } @Fold static int threadTlabEndOffset() { return HotSpotGraalRuntime.getInstance().getConfig().threadTlabEndOffset; } @Fold static Kind wordKind() { return HotSpotGraalRuntime.getInstance().getTarget().wordKind; } @Fold static Register threadReg() { return HotSpotGraalRuntime.getInstance().getConfig().threadRegister; } @Fold static Register stackPointerReg() { return AMD64.rsp; } @Fold static int wordSize() { return HotSpotGraalRuntime.getInstance().getTarget().wordSize; } @Fold static int pageSize() { return HotSpotGraalRuntime.getInstance().getTarget().pageSize; } @Fold static int initialMarkWordOffset() { return HotSpotGraalRuntime.getInstance().getConfig().initialMarkWordOffset; } @Fold static int markOffset() { return HotSpotGraalRuntime.getInstance().getConfig().markOffset; } @Fold static int hubOffset() { return HotSpotGraalRuntime.getInstance().getConfig().hubOffset; } @Fold static int arrayLengthOffset() { return HotSpotGraalRuntime.getInstance().getConfig().arrayLengthOffset; } @Fold static int arrayBaseOffset(Kind elementKind) { return elementKind.getArrayBaseOffset(); } @Fold static int arrayIndexScale(Kind elementKind) { return elementKind.getArrayIndexScale(); } @Fold static int cardTableShift() { return HotSpotGraalRuntime.getInstance().getConfig().cardtableShift; } @Fold static long cardTableStart() { return HotSpotGraalRuntime.getInstance().getConfig().cardtableStartAddress; } @Fold static int superCheckOffsetOffset() { return HotSpotGraalRuntime.getInstance().getConfig().superCheckOffsetOffset; } @Fold static int secondarySuperCacheOffset() { return HotSpotGraalRuntime.getInstance().getConfig().secondarySuperCacheOffset; } @Fold static int secondarySupersOffset() { return HotSpotGraalRuntime.getInstance().getConfig().secondarySupersOffset; } /** * Loads the hub from a object, null checking it first. */ static Object loadHub(Object object) { return UnsafeLoadNode.loadObject(object, 0, hubOffset(), true); } static Object verifyOop(Object object) { if (verifyOops()) { VerifyOopStubCall.call(object); } return object; } static Word asWord(Object object) { return Word.fromObject(object); } static Word loadWord(Word address, int offset) { Object value = loadObject(address, 0, offset, true); return asWord(value); } static { assert arrayIndexScale(Kind.Byte) == 1; assert arrayIndexScale(Kind.Boolean) == 1; assert arrayIndexScale(Kind.Char) == 2; assert arrayIndexScale(Kind.Short) == 2; assert arrayIndexScale(Kind.Int) == 4; assert arrayIndexScale(Kind.Long) == 8; assert arrayIndexScale(Kind.Float) == 4; assert arrayIndexScale(Kind.Double) == 8; } public static Register getStubParameterRegister(int index) { RegisterConfig regConfig = HotSpotGraalRuntime.getInstance().getRuntime().getGlobalStubRegisterConfig(); return regConfig.getCallingConventionRegisters(CallingConvention.Type.RuntimeCall, RegisterFlag.CPU)[index]; } }