Mercurial > hg > graal-jvmci-8
diff graal/Compiler/src/com/sun/c1x/ir/UnsafeRawOp.java @ 2507:9ec15d6914ca
Pull over of compiler from maxine repository.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:43:22 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/Compiler/src/com/sun/c1x/ir/UnsafeRawOp.java Wed Apr 27 11:43:22 2011 +0200 @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2009, 2010, 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.cri.ci.*; + +/** + * The {@code UnsafeRawOp} class is the base class of all unsafe raw operations. + * + * @author Ben L. Titzer + */ +public abstract class UnsafeRawOp extends UnsafeOp { + + Value base; + Value index; + int log2Scale; + + /** + * Creates a new UnsafeRawOp instruction. + * @param opKind the kind of the operation + * @param addr the instruction generating the base address (a long) + * @param isStore {@code true} if this operation is a store + */ + public UnsafeRawOp(CiKind opKind, Value addr, boolean isStore) { + super(opKind, isStore); + assert addr == null || addr.kind == CiKind.Long; + base = addr; + } + + /** + * Creates a new UnsafeRawOp instruction. + * @param opKind the kind of the operation + * @param addr the instruction generating the base address (a long) + * @param index the instruction generating the index + * @param log2scale the log base 2 of the scaling factor + * @param isStore {@code true} if this operation is a store + */ + public UnsafeRawOp(CiKind opKind, Value addr, Value index, int log2scale, boolean isStore) { + this(opKind, addr, isStore); + this.base = addr; + this.index = index; + this.log2Scale = log2scale; + } + + /** + * Gets the instruction generating the base address for this operation. + * @return the instruction generating the base + */ + public Value base() { + return base; + } + + /** + * Gets the instruction generating the index for this operation. + * @return the instruction generating the index + */ + public Value index() { + return index; + } + + /** + * Checks whether this instruction has an index. + * @return {@code true} if this instruction has an index + */ + public boolean hasIndex() { + return index != null; + } + + /** + * Gets the log base 2 of the scaling factor for the index of this instruction. + * @return the log base 2 of the scaling factor + */ + public int log2Scale() { + return log2Scale; + } + + /** + * Sets the instruction that generates the base address for this instruction. + * @param base the instruction generating the base address + */ + public void setBase(Value base) { + this.base = base; + } + + /** + * Sets the instruction generating the base address for this instruction. + * @param index the instruction generating the index + */ + public void setIndex(Value index) { + this.index = index; + } + + /** + * Sets the scaling factor for the index of this instruction. + * @param log2scale the log base 2 of the scaling factor for this instruction + */ + public void setLog2Scale(int log2scale) { + this.log2Scale = log2scale; + } + + /** + * Iterates over the input values to this instruction. + * @param closure the closure to apply + */ + @Override + public void inputValuesDo(ValueClosure closure) { + super.inputValuesDo(closure); + base = closure.apply(base); + if (index != null) { + index = closure.apply(index); + } + } +}