Mercurial > hg > truffle
view graal/GraalCompiler/src/com/sun/c1x/ir/StorePointer.java @ 2509:16b9a8b5ad39
Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:50:44 +0200 |
parents | graal/Compiler/src/com/sun/c1x/ir/StorePointer.java@9ec15d6914ca |
children |
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/* * 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.*; /** * The {@code StorePointer} instruction represents a write of a pointer. * This instruction is part of the HIR support for low-level operations, such as safepoints, * stack banging, etc, and does not correspond to a Java operation. * * @author Ben L. Titzer * @author Doug Simon */ public final class StorePointer extends PointerOp { Value value; /** * Creates an instruction for a pointer store. If {@code displacement != null}, the effective of the address of the store is * computed as the pointer plus a byte displacement plus a scaled index. Otherwise, the effective address is computed as the * pointer plus a byte offset. * @param dataKind the kind of value at the address accessed by the pointer operation * @param pointer the value producing the pointer * @param displacement the value producing the displacement. This may be {@code null}. * @param offsetOrIndex the value producing the scaled-index or the byte offset depending on whether {@code displacement} is {@code null} * @param value the value to write to the pointer * @param stateBefore the state before * @param isVolatile {@code true} if the access is volatile */ public StorePointer(int opcode, CiKind dataKind, Value pointer, Value displacement, Value offsetOrIndex, Value value, FrameState stateBefore, boolean isVolatile) { super(CiKind.Void, dataKind, opcode, pointer, displacement, offsetOrIndex, stateBefore, isVolatile); this.value = value; setFlag(Flag.LiveStore); } @Override public void accept(ValueVisitor v) { v.visitStorePointer(this); } public Value value() { return value; } @Override public void inputValuesDo(ValueClosure closure) { super.inputValuesDo(closure); value = closure.apply(value); } @Override public void print(LogStream out) { out.print("*(").print(pointer); if (displacement() == null) { out.print(" + ").print(offset()); } else { out.print(" + ").print(displacement()).print(" + (").print(index()).print(" * sizeOf(" + dataKind.name() + "))"); } out.print(") := ").print(value()); } }