Mercurial > hg > truffle
annotate graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/IntegerSubstitutions.java @ 8658:e18f7f7ce7a9
removed unused and unnecessary getCustomStackAreaSize() from CodeCacheProvider
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 05 Apr 2013 17:37:27 +0200 |
parents | 5d3fa6f949fb |
children | 0244e5bdddc1 |
rev | line source |
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5874
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
Gilles Duboscq <duboscq@ssw.jku.at>
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1 /* |
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2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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7 * published by the Free Software Foundation. |
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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8 * |
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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12 * version 2 for more details (a copy is included in the LICENSE file that |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
Gilles Duboscq <duboscq@ssw.jku.at>
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13 * accompanied this code). |
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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14 * |
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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15 * You should have received a copy of the GNU General Public License version |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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22 */ |
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rename packages: *snippets* -> *replacements*
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23 package com.oracle.graal.replacements; |
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24 |
8420
5d3fa6f949fb
created com.oracle.graal.api.replacements project and moved ClassSubstitution and MethodSubstitution there
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25 import com.oracle.graal.api.replacements.*; |
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26 import com.oracle.graal.replacements.nodes.*; |
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27 |
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28 @ClassSubstitution(Integer.class) |
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renamings to clarify the difference between lowering/stub snippets and substitution snippets (the end goal is to remove the term 'snippet' from the latter altogether)
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29 public class IntegerSubstitutions { |
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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30 |
7355
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only @MethodSubstitution annotated methods are now considered to be method substitutions which allows for helper methods to be in the same class
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31 @MethodSubstitution |
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32 public static int reverseBytes(int i) { |
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33 return ReverseBytesNode.reverse(i); |
f0d4304243ff
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34 } |
f0d4304243ff
Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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35 |
7355
8c163cfda1e5
only @MethodSubstitution annotated methods are now considered to be method substitutions which allows for helper methods to be in the same class
Doug Simon <doug.simon@oracle.com>
parents:
7280
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36 @MethodSubstitution |
5874
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Add intrinsics for (Long|Integer).(reverseBytes|numberOf(Trail|Lead)ingZeros)
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37 public static int numberOfLeadingZeros(int i) { |
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38 if (i == 0) { |
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39 return 32; |
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40 } |
f0d4304243ff
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41 return 31 - BitScanReverseNode.scan(i); |
f0d4304243ff
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42 } |
f0d4304243ff
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parents:
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43 |
7355
8c163cfda1e5
only @MethodSubstitution annotated methods are now considered to be method substitutions which allows for helper methods to be in the same class
Doug Simon <doug.simon@oracle.com>
parents:
7280
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44 @MethodSubstitution |
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45 public static int numberOfTrailingZeros(int i) { |
f0d4304243ff
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46 if (i == 0) { |
f0d4304243ff
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47 return 32; |
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48 } |
f0d4304243ff
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49 return BitScanForwardNode.scan(i); |
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50 } |
7280
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added intrinsifications for Integer.bitCount() and Long.bitCount()
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51 |
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parents:
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52 @MethodSubstitution |
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53 public static int bitCount(int i) { |
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added intrinsifications for Integer.bitCount() and Long.bitCount()
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54 return BitCountNode.bitCount(i); |
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added intrinsifications for Integer.bitCount() and Long.bitCount()
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55 } |
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56 } |