Mercurial > hg > graal-compiler
view graal/GraalCompiler/src/com/sun/c1x/ir/NegateOp.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/NegateOp.java@9ec15d6914ca |
children | 51ebe5f0516f |
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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.util.*; import com.sun.cri.bytecode.*; /** * The {@code NegateOp} instruction negates its operand. * * @author Ben L. Titzer */ public final class NegateOp extends Instruction { Value x; /** * Creates new NegateOp instance. * @param x the instruction producing the value that is input to this instruction */ public NegateOp(Value x) { super(x.kind); this.x = x; } /** * Gets the instruction producing input to this instruction. * @return the instruction that produces this instruction's input */ public Value x() { return x; } @Override public void inputValuesDo(ValueClosure closure) { x = closure.apply(x); } @Override public void accept(ValueVisitor v) { v.visitNegateOp(this); } @Override public int valueNumber() { return Util.hash1(Bytecodes.INEG, x); } @Override public boolean valueEqual(Instruction i) { if (i instanceof NegateOp) { NegateOp o = (NegateOp) i; return x == o.x; } return false; } @Override public void print(LogStream out) { out.print("- ").print(x()); } }