Mercurial > hg > truffle
diff graal/GraalCompiler/src/com/sun/c1x/ir/StoreField.java @ 2509:16b9a8b5ad39
Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Wed, 27 Apr 2011 11:50:44 +0200 |
parents | graal/Compiler/src/com/sun/c1x/ir/StoreField.java@9ec15d6914ca |
children | e1ba5a93e997 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/GraalCompiler/src/com/sun/c1x/ir/StoreField.java Wed Apr 27 11:50:44 2011 +0200 @@ -0,0 +1,97 @@ +/* + * Copyright (c) 2009, 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.sun.c1x.ir; + +import com.sun.c1x.debug.*; +import com.sun.c1x.value.*; +import com.sun.cri.ci.*; +import com.sun.cri.ri.*; + +/** + * The {@code StoreField} instruction represents a write to a static or instance field. + * + * @author Ben L. Titzer + */ +public final class StoreField extends AccessField { + + /** + * The value to store. + */ + Value value; + + /** + * Creates a new LoadField instance. + * @param object the receiver object + * @param field the compiler interface field + * @param value the instruction representing the value to store to the field + * @param isStatic indicates if the field is static + * @param stateBefore the state before the field access + * @param isLoaded indicates if the class is loaded + */ + public StoreField(Value object, RiField field, Value value, boolean isStatic, FrameState stateBefore, boolean isLoaded) { + super(CiKind.Void, object, field, isStatic, stateBefore, isLoaded); + this.value = value; + setFlag(Flag.LiveStore); + if (value.kind != CiKind.Object) { + setFlag(Flag.NoWriteBarrier); + } + } + + /** + * Gets the value that is written to the field. + * @return the value + */ + public Value value() { + return value; + } + + /** + * Checks whether this instruction needs a write barrier. + * @return {@code true} if this instruction needs a write barrier + */ + public boolean needsWriteBarrier() { + return !checkFlag(Flag.NoWriteBarrier); + } + + @Override + public void inputValuesDo(ValueClosure closure) { + super.inputValuesDo(closure); + value = closure.apply(value); + } + + @Override + public void accept(ValueVisitor v) { + v.visitStoreField(this); + } + + @Override + public void print(LogStream out) { + out.print(object()). + print("."). + print(field().name()). + print(" := "). + print(value()). + print(" [type: ").print(CiUtil.format("%h.%n:%t", field(), false)). + print(']'); + } +}