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.replacements.hsail;
  24 
  25 import com.oracle.graal.api.replacements.ClassSubstitution;
  26 import com.oracle.graal.api.replacements.MethodSubstitution;
  27 import com.oracle.graal.lir.hsail.HSAILArithmetic;
  28 
  29 /**
  30  * Substitutions for {@link java.lang.Math} methods. For any calls to the java.lang.Math routines
  31  * listed below and annotated with @MethodSubstitution, Graal replaces the call with a call to
  32  * HSAILMathIntrinsicNode.compute() which triggers the creation of an HSAILMathIntrinsicNode to
  33  * intrinsify that java.lang.Math routine.
  34  */
  35 @ClassSubstitution(java.lang.Math.class)
  36 public class HSAILMathSubstitutions {
  37 
  38     /**
  39      * Substitution for Math.abs(int).
  40      * 
  41      * @param x the input
  42      * @return the result of the computation
  43      */
  44     @MethodSubstitution
  45     public static int abs(int x) {
  46         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.ABS);
  47     }
  48 
  49     /**
  50      * Substitution for Math.abs(long).
  51      * 
  52      * @param x the input
  53      * @return the result of the computation
  54      */
  55     @MethodSubstitution
  56     public static long abs(long x) {
  57         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.ABS);
  58     }
  59 
  60     /**
  61      * Substitution for Math.abs(float).
  62      * 
  63      * @param x the input
  64      * @return the result of the computation
  65      */
  66     @MethodSubstitution
  67     public static float abs(float x) {
  68         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.ABS);
  69     }
  70 
  71     /**
  72      * Substitution for Math.abs(double).
  73      * 
  74      * @param x the input
  75      * @return the result of the computation
  76      */
  77     @MethodSubstitution
  78     public static double abs(double x) {
  79         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.ABS);
  80     }
  81 
  82     /**
  83      * Substitution for Math.ceil(double).
  84      * 
  85      * @param x the input
  86      * @return the result of the computation
  87      */
  88     @MethodSubstitution
  89     public static double ceil(double x) {
  90         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.CEIL);
  91     }
  92 
  93     /**
  94      * Substitution for Math.floor(double).
  95      * 
  96      * @param x the input
  97      * @return the result of the computation
  98      */
  99     @MethodSubstitution
 100     public static double floor(double x) {
 101         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.FLOOR);
 102     }
 103 
 104     /**
 105      * Substitution for Math.rint(double).
 106      * 
 107      * @param x the input
 108      * @return the result of the computation
 109      */
 110     @MethodSubstitution
 111     public static double rint(double x) {
 112         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.RINT);
 113     }
 114 
 115     /**
 116      * Substitution for Math.sqrt(double).
 117      * 
 118      * @param x the input
 119      * @return the result of the computation
 120      */
 121 
 122     @MethodSubstitution
 123     public static double sqrt(double x) {
 124         return HSAILMathIntrinsicsNode.compute(x, HSAILArithmetic.SQRT);
 125     }
 126 
 127 }