1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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
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23 package jdk.vm.ci.meta;
24 
25 /**
26  * Specifies the action that should be taken by the runtime in case a certain deoptimization is
27  * triggered.
28  */
29 public enum DeoptimizationAction {
30     /**
31      * Do not invalidate the machine code. This is typically used when deoptimizing at a point where
32      * it's highly likely nothing will change the likelihood of the deoptimization happening again.
33      * For example, a compiled array allocation where the size is negative.
34      */
35     None(false),
36 
37     /**
38      * Do not invalidate the machine code, but schedule a recompilation if this deoptimization is
39      * triggered too often.
40      */
41     RecompileIfTooManyDeopts(true),
42 
43     /**
44      * Invalidate the machine code and reset the profiling information.
45      */
46     InvalidateReprofile(true),
47 
48     /**
49      * Invalidate the machine code and immediately schedule a recompilation. This is typically used
50      * when deoptimizing to resolve an unresolved symbol in which case extra profiling is not
51      * required to determine that the deoptimization will not re-occur.
52      */
53     InvalidateRecompile(true),
54 
55     /**
56      * Invalidate the machine code and stop compiling the outermost method of this compilation.
57      */
58     InvalidateStopCompiling(true);
59 
60     private final boolean invalidatesCompilation;
61 
DeoptimizationAction(boolean invalidatesCompilation)62     DeoptimizationAction(boolean invalidatesCompilation) {
63         this.invalidatesCompilation = invalidatesCompilation;
64     }
65 
doesInvalidateCompilation()66     public boolean doesInvalidateCompilation() {
67         return invalidatesCompilation;
68     }
69 
70 }
71