1 /*

     2  * Copyright (c) 2002, 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  */

    24 

    25 package sun.jvm.hotspot.asm.sparc;

    26 

    27 import sun.jvm.hotspot.asm.*;

    28 

    29 public class SPARCRestoreInstruction extends SPARCFormat3AInstruction {

    30     final private boolean trivial;

    31     public SPARCRestoreInstruction(SPARCRegister rs1, ImmediateOrRegister operand2, SPARCRegister rd) {

    32         super("restore", RESTORE, rs1, operand2, rd);

    33         SPARCRegister G0 = SPARCRegisters.G0;

    34         trivial = (rs1 == G0 && operand2 == G0 && rd == G0);

    35     }

    36 

    37     public boolean isTrivial() {

    38         return trivial;

    39     }

    40 

    41     protected String getDescription() {

    42         return (trivial) ? getName() : super.getDescription();

    43     }

    44 }