Mercurial > hg > graal-compiler
annotate graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/DeoptimizationAction.java @ 21619:b14a218c5471
Fix in the dominator based conditional elimination for the corner case of a loop exit merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 31 May 2015 22:48:50 +0200 |
parents | 48c1ebd24120 |
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more preparations for disabling runtime feedback selectively based on deoptimization history
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1 /* |
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2 * Copyright (c) 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 |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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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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22 */ |
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23 package com.oracle.jvmci.meta; |
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24 |
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25 /** |
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26 * Specifies the action that should be taken by the runtime in case a certain deoptimization is |
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27 * triggered. |
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28 */ |
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29 public enum DeoptimizationAction { |
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30 /** |
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31 * Do not invalidate the machine code. This is typically used when deoptimizing at a point where |
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32 * it's highly likely nothing will change the likelihood of the deoptimization happening again. |
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33 * For example, a compiled array allocation where the size is negative. |
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34 */ |
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35 None(false), |
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36 |
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37 /** |
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38 * Do not invalidate the machine code, but schedule a recompilation if this deoptimization is |
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39 * triggered too often. |
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40 */ |
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41 RecompileIfTooManyDeopts(true), |
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42 |
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43 /** |
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44 * Invalidate the machine code and reset the profiling information. |
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45 */ |
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46 InvalidateReprofile(true), |
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47 |
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48 /** |
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49 * Invalidate the machine code and immediately schedule a recompilation. This is typically used |
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50 * when deoptimizing to resolve an unresolved symbol in which case extra profiling is not |
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51 * required to determine that the deoptimization will not re-occur. |
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52 */ |
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53 InvalidateRecompile(true), |
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54 |
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55 /** |
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56 * Invalidate the machine code and stop compiling the outermost method of this compilation. |
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57 */ |
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58 InvalidateStopCompiling(true); |
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59 |
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60 private final boolean invalidatesCompilation; |
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61 |
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62 private DeoptimizationAction(boolean invalidatesCompilation) { |
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63 this.invalidatesCompilation = invalidatesCompilation; |
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64 } |
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65 |
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66 public boolean doesInvalidateCompilation() { |
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67 return invalidatesCompilation; |
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68 } |
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69 |
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70 } |