Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/G1PreWriteBarrier.java @ 17276:ffb974bef674
moved Node valueNumber and valueEquals logic (optionally) to generated nodes
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 01 Oct 2014 07:39:47 +0200 |
parents | 0fe4732e5181 |
children | 655f3e6b467b |
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/* * Copyright (c) 2013, 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.nodes; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; @NodeInfo public class G1PreWriteBarrier extends WriteBarrier implements DeoptimizingNode.DeoptBefore { @OptionalInput(InputType.State) FrameState stateBefore; protected final boolean nullCheck; protected final boolean doLoad; public static G1PreWriteBarrier create(ValueNode object, ValueNode expectedObject, LocationNode location, boolean doLoad, boolean nullCheck) { return USE_GENERATED_NODES ? new G1PreWriteBarrierGen(object, expectedObject, location, doLoad, nullCheck) : new G1PreWriteBarrier(object, expectedObject, location, doLoad, nullCheck); } protected G1PreWriteBarrier(ValueNode object, ValueNode expectedObject, LocationNode location, boolean doLoad, boolean nullCheck) { super(object, expectedObject, location, true); this.doLoad = doLoad; this.nullCheck = nullCheck; } public ValueNode getExpectedObject() { return getValue(); } public boolean doLoad() { return doLoad; } public boolean getNullCheck() { return nullCheck; } @Override public boolean canDeoptimize() { return nullCheck; } @Override public FrameState stateBefore() { return stateBefore; } @Override public void setStateBefore(FrameState state) { updateUsages(stateBefore, state); stateBefore = state; } }