/* * This file is part of the Jikes RVM project (http://jikesrvm.org). * * This file is licensed to You under the Eclipse Public License (EPL); * You may not use this file except in compliance with the License. You * may obtain a copy of the License at * * http://www.opensource.org/licenses/eclipse-1.0.php * * See the COPYRIGHT.txt file distributed with this work for information * regarding copyright ownership. */ package org.jikesrvm.compilers.opt.ir.operand; import org.jikesrvm.compilers.opt.ir.BasicBlock; /** * Represents a basic block (used in LABEL and BBEND instructions) * * @see Operand */ public final class BasicBlockOperand extends Operand { /** * The basic block */ public BasicBlock block; /** * Construct a new basic block operand with the given block. * * @param b the basic block */ public BasicBlockOperand(BasicBlock b) { block = b; } /** * Return a new operand that is semantically equivalent to <code>this</code>. * * @return a copy of <code>this</code> */ public Operand copy() { return new BasicBlockOperand(block); } /** * Are two operands semantically equivalent? * * @param op other operand * @return <code>true</code> if <code>this</code> and <code>op</code> * are semantically equivalent or <code>false</code> * if they are not. */ public boolean similar(Operand op) { return (op instanceof BasicBlockOperand) && (block == ((BasicBlockOperand) op).block); } /** * Returns the string representation of this operand. * * @return a string representation of this operand. */ public String toString() { return block.toString(); } }