| /* |
| * Copyright (c) 2016, 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 org.graalvm.compiler.lir; |
| |
| import org.graalvm.compiler.common.PermanentBailoutException; |
| import org.graalvm.compiler.lir.phases.LIRSuites; |
| import org.graalvm.compiler.options.Option; |
| import org.graalvm.compiler.options.OptionType; |
| import org.graalvm.compiler.options.OptionValue; |
| import org.graalvm.compiler.options.OptionValue.OverrideScope; |
| import org.graalvm.compiler.options.StableOptionValue; |
| |
| /** |
| * Restarts the {@link LIR low-level} compilation with a modified configuration. |
| * {@link BailoutAndRestartBackendException.Options#LIRUnlockBackendRestart LIRUnlockBackendRestart} |
| * needs to be enabled. Use only for debugging purposes only. |
| */ |
| public abstract class BailoutAndRestartBackendException extends PermanentBailoutException { |
| |
| public static class Options { |
| // @formatter:off |
| @Option(help = "Unlock backend restart feature.", type = OptionType.Debug) |
| public static final StableOptionValue<Boolean> LIRUnlockBackendRestart = new StableOptionValue<>(false); |
| // @formatter:on |
| } |
| |
| private static final long serialVersionUID = 792969002851591180L; |
| |
| public BailoutAndRestartBackendException(String msg) { |
| super(msg); |
| } |
| |
| public BailoutAndRestartBackendException(Throwable cause, String msg) { |
| super(cause, msg); |
| } |
| |
| /** Returns {@code true} if the low-level compilation should be restarted. */ |
| public abstract boolean shouldRestart(); |
| |
| /** |
| * Returns an {@link OverrideScope} to change {@link OptionValue OptionValues} or {@code null} |
| * if no changes are required. |
| */ |
| public abstract OverrideScope getOverrideScope(); |
| |
| /** |
| * Updates the {@link LIRSuites} used by the low-level compiler. Note that {@link LIRSuites} are |
| * usually shared, so a modified input parameter will affect other compilations. In case only |
| * the current compilation should be altered, create a copy using {@link LIRSuites#copy()}. |
| */ |
| public abstract LIRSuites updateLIRSuites(LIRSuites lirSuites); |
| |
| } |