001    /*
002     *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003     *
004     *  This file is licensed to You under the Eclipse Public License (EPL);
005     *  You may not use this file except in compliance with the License. You
006     *  may obtain a copy of the License at
007     *
008     *      http://www.opensource.org/licenses/eclipse-1.0.php
009     *
010     *  See the COPYRIGHT.txt file distributed with this work for information
011     *  regarding copyright ownership.
012     */
013    package org.jikesrvm.compilers.opt.ir;
014    
015    import static org.jikesrvm.compilers.opt.ir.Operators.BOUNDS_CHECK;
016    
017    /**
018     * General utilities to summarize an IR
019     */
020    public final class IRSummary {
021    
022      /**
023       * Does this IR have a bounds check expression?
024       */
025      public static boolean hasBoundsCheck(IR ir) {
026        for (InstructionEnumeration e = ir.forwardInstrEnumerator(); e.hasMoreElements();) {
027          Instruction s = e.next();
028          if (s.operator == BOUNDS_CHECK) {
029            return true;
030          }
031        }
032        return false;
033      }
034    }
035    
036    
037