1 /*
   2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package com.oracle.graal.asm.hsail;
  24 
  25 import com.oracle.graal.api.code.*;
  26 
  27 import com.oracle.graal.api.meta.*;
  28 
  29 /**
  30  * Represents an address in target machine memory, specified via some combination of a base register
  31  * and a displacement.
  32  */
  33 public final class HSAILAddress extends AbstractAddress {
  34 
  35     private final Register base;
  36     private final long displacement;
  37 
  38     /**
  39      * Creates an {@link HSAILAddress} with given base register and no displacement.
  40      * 
  41      * 
  42      * @param base the base register
  43      */
  44     public HSAILAddress(Register base) {
  45         this(base, 0);
  46     }
  47 
  48     /**
  49      * Creates an {@link HSAILAddress} with given base register and a displacement. This is the most
  50      * general constructor.
  51      * 
  52      * @param base the base register
  53      * @param displacement the displacement
  54      */
  55     public HSAILAddress(Register base, long displacement) {
  56         this.base = base;
  57         this.displacement = displacement;
  58     }
  59 
  60     /**
  61      * @return Base register that defines the start of the address computation. If not present, is
  62      *         denoted by {@link Value#ILLEGAL}.
  63      */
  64     public Register getBase() {
  65         return base;
  66     }
  67 
  68     /**
  69      * @return Optional additive displacement.
  70      */
  71     public long getDisplacement() {
  72         return displacement;
  73     }
  74 
  75 }