Mercurial > hg > graal-compiler
view graal/com.oracle.graal.printer/src/com/oracle/graal/printer/NoDeadCodeVerifyHandler.java @ 22721:2d6bcedb5058
Allow OperandMode.TEMP to be STACK; do not reuse VirtualStackSlot for temp slots on SPARC
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Tue, 29 Sep 2015 16:01:13 +0200 |
parents | 05183a084a08 |
children | 0052aa6ed733 |
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/* * Copyright (c) 2014, 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 com.oracle.graal.printer; import static com.oracle.graal.printer.NoDeadCodeVerifyHandler.Options.NDCV; import java.util.List; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import jdk.internal.jvmci.common.JVMCIError; import jdk.internal.jvmci.options.Option; import jdk.internal.jvmci.options.OptionType; import jdk.internal.jvmci.options.OptionValue; import com.oracle.graal.debug.DebugVerifyHandler; import com.oracle.graal.graph.Node; import com.oracle.graal.nodes.StructuredGraph; import com.oracle.graal.phases.common.DeadCodeEliminationPhase; /** * Verifies that graphs have no dead code. */ public class NoDeadCodeVerifyHandler implements DebugVerifyHandler { // The options below will be removed once all phases clean up their own dead code. private static final int OFF = 0; private static final int INFO = 1; private static final int VERBOSE = 2; private static final int FATAL = 3; static class Options { // @formatter:off @Option(help = "Run level for NoDeadCodeVerifyHandler (0 = off, 1 = info, 2 = verbose, 3 = fatal)", type = OptionType.Debug) public static final OptionValue<Integer> NDCV = new OptionValue<>(0); // @formatter:on } /** * Only the first instance of failure at any point is shown. This will also be removed once all * phases clean up their own dead code. */ private static final Map<String, Boolean> discovered = new ConcurrentHashMap<>(); public void verify(Object object, String message) { if (NDCV.getValue() != OFF && object instanceof StructuredGraph) { StructuredGraph graph = (StructuredGraph) object; List<Node> before = graph.getNodes().snapshot(); new DeadCodeEliminationPhase().run(graph); List<Node> after = graph.getNodes().snapshot(); assert after.size() <= before.size(); if (before.size() != after.size()) { if (discovered.put(message, Boolean.TRUE) == null) { before.removeAll(after); String prefix = message == null ? "" : message + ": "; JVMCIError error = new JVMCIError("%sfound dead nodes in %s: %s", prefix, graph, before); if (NDCV.getValue() == INFO) { System.out.println(error.getMessage()); } else if (NDCV.getValue() == VERBOSE) { error.printStackTrace(System.out); } else { assert NDCV.getValue() == FATAL; throw error; } } } } } }