1 /* 2 * Copyright (c) 2012, 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 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 62 private DeoptimizationAction(boolean invalidatesCompilation) { 63 this.invalidatesCompilation = invalidatesCompilation; 64 } 65 66 public boolean doesInvalidateCompilation() { 67 return invalidatesCompilation; 68 } 69 70 }