Mercurial > hg > truffle
view graal/GraalCompiler/src/com/sun/c1x/ir/CompareOp.java @ 2543:c58a301eb2d7
Clean up on canTrap.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 21:22:10 +0200 |
parents | 16b9a8b5ad39 |
children | e1b3db8031ee |
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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.cri.bytecode.*; import com.sun.cri.ci.*; /** * The {@code CompareOp} instruction represents comparisons such as equals, not equal, etc. * * @author Ben L. Titzer */ public final class CompareOp extends Op2 { /** * Creates a new compare operation. * @param opcode the bytecode opcode * @param kind the result kind * @param x the first input * @param y the second input */ public CompareOp(int opcode, CiKind kind, Value x, Value y) { super(kind, opcode, x, y); if (kind.isVoid()) { // A compare that does not produce a value exists soley for it's side effect (i.e. setting condition codes) setFlag(Flag.LiveSideEffect); } } @Override public void accept(ValueVisitor v) { v.visitCompareOp(this); } @Override public void print(LogStream out) { out.print(x()). print(' '). print(Bytecodes.operator(opcode)). print(' '). print(y()); } }