Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeStoreNode.java @ 16332:ddd68e267e34
explicitly define optional inputs in @Input
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Mon, 30 Jun 2014 18:46:41 +0200 |
parents | 6f02ff62c3ef |
children | 36ae19c8fb4e |
line wrap: on
line source
/* * Copyright (c) 2011, 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.nodes.extended; import static com.oracle.graal.compiler.common.UnsafeAccess.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.nodes.spi.*; /** * Store of a value at a location specified as an offset relative to an object. No null check is * performed before the store. */ public class UnsafeStoreNode extends UnsafeAccessNode implements StateSplit, Lowerable, Virtualizable, MemoryCheckpoint.Single { @Input private ValueNode value; @OptionalInput(InputType.State) private FrameState stateAfter; public UnsafeStoreNode(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind, LocationIdentity locationIdentity) { this(object, offset, value, accessKind, locationIdentity, null); } public UnsafeStoreNode(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind, LocationIdentity locationIdentity, FrameState stateAfter) { super(StampFactory.forVoid(), object, offset, accessKind, locationIdentity); this.value = value; this.stateAfter = stateAfter; assert accessKind != Kind.Void && accessKind != Kind.Illegal; } public FrameState stateAfter() { return stateAfter; } public void setStateAfter(FrameState x) { assert x == null || x.isAlive() : "frame state must be in a graph"; updateUsages(stateAfter, x); stateAfter = x; } public boolean hasSideEffect() { return true; } public ValueNode value() { return value; } @Override public void lower(LoweringTool tool) { tool.getLowerer().lower(this, tool); } @Override public void virtualize(VirtualizerTool tool) { State state = tool.getObjectState(object()); if (state != null && state.getState() == EscapeState.Virtual) { ValueNode indexValue = tool.getReplacedValue(offset()); if (indexValue.isConstant()) { long offset = indexValue.asConstant().asLong(); int entryIndex = state.getVirtualObject().entryIndexForOffset(offset); if (entryIndex != -1) { Kind entryKind = state.getVirtualObject().entryKind(entryIndex); ValueNode entry = state.getEntry(entryIndex); if (entry.getKind() == value.getKind() || entryKind == accessKind()) { tool.setVirtualEntry(state, entryIndex, value(), true); tool.delete(); } else { if ((accessKind() == Kind.Long || accessKind() == Kind.Double) && entryKind == Kind.Int) { int nextIndex = state.getVirtualObject().entryIndexForOffset(offset + 4); if (nextIndex != -1) { Kind nextKind = state.getVirtualObject().entryKind(nextIndex); if (nextKind == Kind.Int) { tool.setVirtualEntry(state, entryIndex, value(), true); tool.setVirtualEntry(state, nextIndex, ConstantNode.forConstant(Constant.forIllegal(), tool.getMetaAccessProvider(), graph()), true); tool.delete(); } } } } } } } } @Override protected ValueNode cloneAsFieldAccess(ResolvedJavaField field) { return new StoreFieldNode(object(), field, value(), stateAfter()); } @Override protected ValueNode cloneAsArrayAccess(ValueNode location, LocationIdentity identity) { return new UnsafeStoreNode(object(), location, value, accessKind(), identity); } public FrameState getState() { return stateAfter; } public MemoryCheckpoint asMemoryCheckpoint() { return this; } public MemoryPhiNode asMemoryPhi() { return null; } // specialized on value type until boxing/unboxing is sorted out in intrinsification @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, Object value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putObject(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, boolean value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putBoolean(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, byte value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putByte(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, char value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putChar(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, double value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putDouble(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, float value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putFloat(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, int value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putInt(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, long value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putLong(object, offset, value); } @SuppressWarnings("unused") @NodeIntrinsic public static void store(Object object, long offset, short value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) { unsafe.putShort(object, offset, value); } }