--- /dev/null 2015-10-08 07:25:43.000000000 -1000 +++ new/src/jdk.vm.ci/share/classes/jdk.vm.ci.meta/src/jdk/vm/ci/meta/DeoptimizationAction.java 2015-10-08 07:25:43.000000000 -1000 @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package jdk.vm.ci.meta; + +/** + * Specifies the action that should be taken by the runtime in case a certain deoptimization is + * triggered. + */ +public enum DeoptimizationAction { + /** + * Do not invalidate the machine code. This is typically used when deoptimizing at a point where + * it's highly likely nothing will change the likelihood of the deoptimization happening again. + * For example, a compiled array allocation where the size is negative. + */ + None(false), + + /** + * Do not invalidate the machine code, but schedule a recompilation if this deoptimization is + * triggered too often. + */ + RecompileIfTooManyDeopts(true), + + /** + * Invalidate the machine code and reset the profiling information. + */ + InvalidateReprofile(true), + + /** + * Invalidate the machine code and immediately schedule a recompilation. This is typically used + * when deoptimizing to resolve an unresolved symbol in which case extra profiling is not + * required to determine that the deoptimization will not re-occur. + */ + InvalidateRecompile(true), + + /** + * Invalidate the machine code and stop compiling the outermost method of this compilation. + */ + InvalidateStopCompiling(true); + + private final boolean invalidatesCompilation; + + private DeoptimizationAction(boolean invalidatesCompilation) { + this.invalidatesCompilation = invalidatesCompilation; + } + + public boolean doesInvalidateCompilation() { + return invalidatesCompilation; + } + +}