1 /*
   2  * Copyright (c) 2012, 2014, 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 package com.oracle.graal.hotspot.replacements;
  25 
  26 import com.oracle.graal.api.replacements.*;
  27 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
  28 
  29 public class HotspotGuards {
  30     public static class CountLeadingZerosSupported implements SubstitutionGuard {
  31         public boolean execute() {
  32             return runtime().getConfig().useCountLeadingZerosInstruction;
  33         }
  34     }
  35 
  36     public static class CountTrailingZerosSupported implements SubstitutionGuard {
  37         public boolean execute() {
  38             return runtime().getConfig().useCountTrailingZerosInstruction;
  39         }
  40     }
  41 }