Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotCardTableShiftOp.java @ 21399:307a1ee8f714
Merge
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Fri, 15 May 2015 11:55:52 +0200 |
parents | 8fc336a04d77 |
children | 15a46a918fc1 |
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/* * Copyright (c) 2014, 2015, 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.amd64; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.hotspot.meta.HotSpotCodeCacheProvider.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.amd64.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.hotspot.HotSpotGraalRuntime; public final class AMD64HotSpotCardTableShiftOp extends AMD64LIRInstruction { public static final LIRInstructionClass<AMD64HotSpotCardTableShiftOp> TYPE = LIRInstructionClass.create(AMD64HotSpotCardTableShiftOp.class); @Def({OperandFlag.REG, OperandFlag.ILLEGAL}) private AllocatableValue result; public AMD64HotSpotCardTableShiftOp(AllocatableValue result) { super(TYPE); this.result = result; } @Override public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler asm) { Kind hostWordKind = HotSpotGraalRuntime.getHostWordKind(); int alignment = Kind.Int.getBitCount() / Byte.SIZE; JavaConstant shift = JavaConstant.forIntegerKind(hostWordKind, 0); // recordDataReferenceInCode forces the mov to be rip-relative asm.movq(ValueUtil.asRegister(result), (AMD64Address) crb.recordDataReferenceInCode(shift, alignment)); MarkId.recordMark(crb, MarkId.CARD_TABLE_SHIFT); } }